airlift mud pump made in china

According to relevant research, it is clear that for a traditional mud pump, there will be blockage and wear during the dredging process because the flow cross-section of the blade is so large that its concentration is limited. Compressed air serves as the power source for air transportation, which can pump and transport liquid or mud through the combination of buoyancy, friction, and vacuum effects (Fu and Yan, 2004; Pei and Liao, 2010). To the best of our knowledge, the airlift system has many advantages, such as low cost, easy operation, simple configuration, no pollution to the environment, and less blockage (Chen et al., 2009; Pei and Tang, 2015). Therefore, it can be considered that the air transportation system has great potential for river and lake dredging.

Many scholars have carried out research, such as numerical simulation of the mixed fluid in the airlift system and analysis of the relationship between the injection parameter and the performance so that it has a higher matching, and thus, the performance of mud airlift is improved. Huang et al. (2017) performed a numerical simulation to study the effect of the nozzle type, injection depth, and injection hole diameter on the airlift pump, thereby improving the performance of the airlift pump. Alasadi and Habeeb (2017) then performed a numerical simulation study on the airlift pump with traditional and improved air injection devices under different intake flow rates, and the results show that the airlift pump with an improved air injection device can improve performance at higher intake flow rates. In actual operation, sufficient attention should be paid to the critical point of the solid particles carried in the bottom layer. If this is not given, it will cause blockage in the pump which will affect the performance and cause safety accidents in severe cases. When researchers study critical characteristics, they are mainly conducted from the perspective of experiments and rarely involve theoretical models. Taleb and Al-Jarrah (2017) performed an experiment to study the effect of the submergence ratio and air injection hole diameter on the performance of the airlift pump. The results showed that the performance of the airlift pump increased as the submergence ratio increased, while an injection hole diameter of 4 mm gave the highest performance. Oueslati A performed an experiment under many operating conditions, and proposed a theoretical model taking into account the air humidification and liquid temperature. The results showed that the proposed model is in good agreement with the experimental results. Fujimoto and Murakami studied the critical conditions of a mud airlift pump and obtained a model of the critical water flow rate for lifting solid particles at the bottom of the pump. By using this model, results that are consistent with reality can be obtained (Fujimoto et al., 2004). On this basis, our research team expanded the suction distance and obtained the rule of critical particle detonation. It needs to be clear that the aforementioned studies are only for water–solid two-phase flow (Tang et al., 2012). Fujimoto and Nagatani then used the aforementioned working conditions to analyze the critical conditions of particles transported in the three-phase flow. The research results show that in the three-phase flow, the starting of particles is easier, but the corresponding theoretical model is not proved (Fujimoto et al., 2005). In application, because of the constraint pressure (Pei et al., 2010; Hu et al., 2013), the particles are often compressed when they are deposited at the bottom, which makes it difficult to start the particles. At the same time, the airlift is caused to fail, but scholars rarely conduct research on this aspect.

In this study, the research is carried out. The interface selects the inlet of the airlift pump to divide the mixed water into two fluid phases, one is a water–solid two-phase flow, and the other is a gas–water–solid three-phase flow. To satisfy the actual dredging, the medium used in this study is round river sand. Based on this, the critical conditions of the three-phase flow and two-phase flow are analyzed, and the relationship between the key condition and chip compaction is analyzed. For discussion, the research result of this study can provide a reference for other researchers to study related theories.

Analyzing Figure 3, it is clear that when JG,cri is increased, JL,3,cri will be reduced. After reaching the inflection point, JL,3,cri will decrease as JG,cri decreases. Therefore, by increasing JG,cri, the density of the mixed fluid can be reduced, so that the start of the particles becomes easier. Near the inflection point, because the gas value is large, the movement of the particles is mainly controlled by the water phase. From this, it can be clear that the performance of the airlift will be affected by working conditions, and it is necessary to reduce the air mass and then change the flow pattern in the tube, so that it can change from circular flow to elastic flow. It needs to be clear that this change is irreversible, that is, after reaching the inflection point, JL,3,cri will decrease with the decrease of JG,cri. According to the related research results (Hanafizadeh et al., 2011; Tang et al., 2016), the critical airlift of mud is opposite to the existence of the inflection point. In engineering applications, the inflection point needs to be moved down as much as possible. Comparing and analyzing the critical strength of particles with different diameters can be clear (Figure 3A). When the particle diameter is increased, JL,LS,cri and JL,3,cri will rise accordingly. The reason for this phenomenon is that increasing the particle diameter will increase the solid phase slip. In Figure 3B, it is clear that when the particle density increases, JL,LS,cri and JL,3,cri will rise accordingly. The reason for this phenomenon is that increasing the average density of the mixed water will reduce buoyancy. In addition, when increasing the particle density and diameter, the inflection point will move to the right (Kassab et al., 2007).

In the aforementioned model, particles need to be placed in the tube. However, in practical application, the particles will first deposit at the bottom of the water, and then they will be affected by the static chip retention effect. Obviously, the working conditions are different from those assumed by previous research. To be consistent with the practical situation, the research object selected in this study is particle B which is closest to the bottom of the pump. Figure 4 shows the force acting on particle B.

Compared with the critical water flow model[30] we constructed, it is clear that in this model, we only consider the static chip retention force (static chip retention effect) of the particles, which is in line with the actual engineering. Using the relevant parameters shown in Table 2 to calculate, the results of the model can be clarified (Figure 5). It is clear that with the increase of particle diameter dS and density ρS, the JL,LS,cri only shows a slight upward. On the contrary, when the immersion rate γ is continuously increased, JL,LS,cri will be significantly increased. If the particle density and size are smaller, then the immersion rate γ will control the start of the particle. Analyzing Figure 5, it can be clear that if the static chip retention effect is maintained, JL,LS,cri will be increased quickly. It is concluded that for small and medium particles, the airlift performance will be affected by the static chip retention effect.

It can be considered that in areas such as oceans and lakes, because of their greater depth, the particles have a larger static chip retention force, which causes the start to fail. If the particles are compacted, then it will prevent airlift dredging. Therefore, it is necessary to impact the sand layer before airlift, so that the static chip retention effect can be reduced.

Comparing the experimental results and the calculated results, it is clear (as shown in Figure 7) that the experimental value of the critical water flow rate for lifting the solid is lower than that of the calculation result when only lifting the particles. This situation occurs because the tube and the pump will coalesce, expand, rupture, and re-aggregate. The bubbles will move periodically, causing mixed fluid instability along the axial direction when it rises. Ascending, its oscillation characteristic is ascending-descending-ascending, and compared with descending motion, the ascending motion is more intense. According to the results of other researchers and ours, it can be inferred (Hu et al., 2012; Hu et al., 2015) that the basic feature of a slurry airlift is the oscillating upward motion of the mixed fluid, which will cause a transient vacuum, so there will be resistance. If the particle’s fluctuation reaches its peak, then the particle’s activation state can be advanced. Figure 7 also shows that if the immersion rate is lower, the mixed fluid will have more prominent oscillation characteristics, which will result in a higher instantaneous vacuum. To confirm these phenomena, high-speed cameras can be used.

Due to the effect of gravity, the particles will be affected by the static chip retention effect when they are deposited at the bottom of the water. When we are conducting research, we put sand particles on the bottom of the pump in advance (Figure 4). At this time, the sand will be closely arranged and in a double-stacked state. To maintain the static chip retention effect, the particles need to be placed in the water continuously for 7 days. Then we adjusted the water tank and preset the immersion rate. The particles in the center of the upper layer are the object, and the key experimental steps are repeated. Based on this, we can get JG, L, LS, Cri, JG, S, LS, Cri, and JL, LS, Cri. The research results show that the particles cannot start when the air compressor valve is adjusted from close to the maximum gas flow. Therefore, it can be considered that the static chip retention effect is obvious at the bottom. Even if the pump has a large water value and the resistance imposed on the particles is small, the static chip retention force cannot be overcome, thus making it impossible to carry out an airlift. To clarify the experimental results of JL,LS,Cri, we connected the outlet of the airlift pump to a high-power centrifugal pump. Table 4 shows the comparison results of theoretical and experimental critical values. Research on the table can be clear, and the calculation results show that the experimental results of JL,LS,Cri are low. Therefore, it can be considered that the fluctuation of water flow and surface defects between adjacent particles (Figure 4) will reduce the compactness, which finally weakens the static retention effect of the chips. Therefore, it can be considered that as long as the static chip retention effect exists, it will affect air transportation, so it is necessary to take measures to eliminate it.

2) In a water-solid two-phase flow, the physical properties of the water and particles will affect the critical water rate. However, in the gas–water–solid three-phase flow, not only will the physical properties of water and particles affect the critical water rate but so will the air rate. Before the inflection point, as the air critical flow increases, the water flow will decrease. After the inflection point, as the air critical flow increases, the water flow will increase. In addition, the existence of the inflection point is not conducive to airlift.

4) When there is a static chip retention effect under water, it is necessary to use auxiliary methods to impact the particle layer or to increase the resistance of the particles, otherwise, it will not be conducive to airlift.

Alasadi, A. A. M. H., and Habeeb, A. K. (2017). Experimental and numerical simulation of an airlift pump with conventional and modified air injection device. J. Eng. 23 (2), 62.

Fujimoto, H., Murakami, S., Omura, A., and Takuda, H. (2004). Effect of local pipe bends on pump performance of a small air-lift system in transporting solid particles. Int. J. Heat Fluid Flow 25 (6), 996–1005. doi:10.1016/j.ijheatfluidflow.2004.02.025

Fujimoto, H., Nagatani, T., and Takuda, H. (2005). Performance characteristics of a gas–liquid–solid airlift pump. Int. Jonalur Multiph. Flow 31 (10-11), 1116–1133. doi:10.1016/j.ijmultiphaseflow.2005.06.008

Hanafizadeh, P., Ghanbarzadeh, S., and Saidi, M. H. (2011). Visual technique for detection of gas–liquid two-phase flow regime in the airlift pump. J. Petroleum Sci. Eng. 75 (3-4), 327–335. doi:10.1016/j.petrol.2010.11.028

Hu, D., Kang, Y., Tang, C-L., and Wang, X-C. (2015). Modeling and analysis of airlift system operating in three-phase flow. China Ocean. Eng. 29 (1), 121–132. doi:10.1007/s13344-015-0009-z

Hu, D., Tang, C., Zhang, F., and Lin, Y. (2012). Theoretical model and experimental research of airlift device in borehole hydraulic jet mining[J]. J. China Coal Soc. 37 (3), 522. doi:10.13225/j.cnki.jccs.2012.03.014

Hu, D., Wu, X., Tang, C., and Liao, Z. (2013). Experimental study of airlift device for borehole hydraulic jet mining[J]. Mech. Sci. Technol. Aerosp. Eng. 32 (5), 756. doi:10.13433/j.cnki.1003-8728.2013.05.004

Kassab, S. Z., Kandil, H. A., Warda, H. A., and Ahmed, W. (2007). Experimental and analytical investigations of airlift pumps operating in three-phase flow. Chem. Eng. J. 131 (1–3), 273–281. doi:10.1016/j.cej.2006.12.009

Oueslati, A., and Megriche, A. (2017). The effect of liquid temperature on the performance of an airlift pump. Energy Procedia 119, 693–701. doi:10.1016/j.egypro.2017.07.096

The purpose of this utility model is to overcome the above-mentioned defective of prior art, and a kind of reliable performance is provided, the air lift mud pump that the life-span is long.

For achieving the above object, the utility model air lift mud pump comprises the transducing chamber of cone-shape, the riser, compressed air hose and the supply pipe that link to each other with the transducing chamber, and riser and supply pipe be positioned opposite up and down, and the cross section of riser is greater than the cross section of supply pipe.Riser and supply pipe positioned opposite up and down help making material to rise, reduce energy loss smoothly and improve transfer efficiency.So design does not have mechanical moving element, does not have impeller and bearing wear problem, is power with the air only, has reliable performance, and the life-span is long, the advantage that operating cost is low.

Before the utility model airlift pump work, open circulating pipe earlier, play stirring action, because precipitate, need the stirring action of circulating pipe that bits are floated at most of bits of slag bath, just can close circulating pipe about about one minute kind.After opening circulating pipe, open pressurized air,, pressurized air is moved upward along riser by the refraction action of transducing chamber skew wall.Pressurized air can form a depression near the riser mouth of pipe like this, and slag-water slurry produces initial velocity under the effect of atmosphere negative pressure, and is raised in the guiding gutter along riser.Be raised to the interior slag-water slurry of guiding gutter under the effect of seal bowl, guiding gutter falls back; Guiding gutter collects these slag-water slurries, flows to appointed positions along honeycomb duct.Existing blade type slag stock pump is used to promote the metallurgical slag slurry and has only 3-4 month the life-span, and need often change parts and maintenance; And the utility model air lift mud pump can reach half a year in working life under same operating conditions, and need not change parts.

After adopting technique scheme, the utility model air lift mud pump has simple in structure, reliable performance, and wear-resisting property is good, and the life-span is long, and operating cost is low, is convenient to safeguard advantage applied widely.

The utility model adopts submersible type that ceramic mud is carried.Connection cable 1 is fixing by fastening piece 2, and makes it not make pulling force when the mobile pump housing, directly acts on cable joining, causes uncoupling.The fastening cable of one end, the other end connects handle 3 with chain, and cable pressing plate 4 closely cooperates end and outlet box 5, and it is too high that termination heat protector 6 is protected the motors intensification under the end, can take off electricity automatically, and its lower end connects motor lighting outlet 7.The motor upper end is provided with upper end cap 8 and is connected with support 9, and the motor lower end is provided with lower end cap 10 and is connected with pump seat 12, and pump seat 12 is formed through some stiffening ribs and is connected with the pump housing 15, and net circle 13 is equipped with in pump housing inlet, and ceramic size enters the pump housing through net circle 13.There are three shoulders rotor axis of electric 11 lower ends, and first shoulder is equipped with mechanical seal 14, the anti-two blade impeller 16 that is equipped with of rotor shaft end.

In 1904, the company built its first mud pump, and since then, more than 1500 mud pumps in different designs have followed. MHWirth legacy of drawworks dates back to the 1950s, and also is history to deliver Pyramid masts and substructures for land rigs. In the following decades the firm added piston diaphragm pumps to its portfolio serving the mining industry as well as pile top drill rigs with Reversed Circulation Drilling (RCD) technology for the construction of foundation structures. That technology also laid the foundation for a later involvement in subsea mining. At that time, the Germany-based company was well-known in the industry under the name of “Wirth”.

During mining operation, a MHWirth drill bit with up to 7.2 m in diameter loosens the material from the seabed. The material is then transported vertically through a large diameter airlift drill string (up to 700 mm in diameter) to the drilling vessel for further processing. Core of this technology is MHWirth’s efficient and environmentally-friendly reverse circulation technology, also known as airlift technology. Compared to other solutions, MHWirth’s airlift technology uses only robust components with limited complexity under water, thus maximizing equipment availability and optimizing operational costs (OPEX). Thus, MHWirth drilling equipment allows the vessels to operate even under severe sea conditions.

With airlifts it"s all about head pressure of the filtration. They can circulate massive amounts of water at near zero lift. No other type of pump will come close for the energy used and water moved. If the filtration is very low head gravity type the only time a conventional pump can compete is when the airlift is operated in shallow conditions. The very low head filter requirement makes it not feasible for many. Since this will be used during power outages only, in the above situation a 20 watt air pump could power the airlift and also provide air to a supplemental airstone in the tank.

There"s been a few attempts at high efficiency smaller submerged axial flow pumps and gravity filtration but no active push in the ornamental pond field.

We all have heard of air-lift pumps. These pumps are usually found near agricultural lands and irrigational fields where the availability of electricity is rare and intermittent. But have you ever wondered how air can lift water and pump it from deep wells? How intermittent availability of electricity does not interfere with the operation of these air-lift pumps? Let us discuss the operating principle, advantages and disadvantages of air-lift pumps.

An air-lift pump is a device which is used to lift water from a well or a sump with the use of compressed air. The compressed air is made to mix with the water. It is well known that the density of water is more than the density of air. So it is obvious and evident that air floats higher than water or to understand better, water has more weight than air. So the main principle used in air-lift pumps is the density difference between water and air. Air is made to mix with the water and thus allowed to form froth. Froth here consists of mixture of water and air. So the density of this mixture is less than that of the water. It is the mixture of air which makes the density less than water. Thus a very small column of pure water can balance a very long column of air-water mixture. This is the working principle of air-lift pumps.

These pumps do not require any electrical power from the power mains. Wondering how? There are systems installed in villages to irrigate agricultural fields. The system has a windmill which drives an air compressor. The compressed air from the air compressor is led into the pipe which has a nozzle in the deep wells. This system can also be modified by windmill driving a generator and power from this generator is used for compressing air and then used in these pumps.

Applications: These pumps, in spite of their poor efficiency, are commonly used in many areas where conventional pumps usage is difficult. These pumps are used in

TianyunMfg TY- HT400 pump is an efficient module. The alphabets HT represent horizontal triples and 400 denotes the rating of its horsepower, which is 400 horsepower, TY-HT400 pump is designed and manufactured based on the original design of Halliburton HT400 triplex pump which was introduced in 1957. The design of this pump has been altered and adapted to make it suitable for operation. Some of the variants of this pump have a capacity of up to 800 horsepower after decades of strenuous up-gradation. The pump has been proven efficient for long-term use in operations such as cementing, acidizing, water and cement works, and fracturing.

TianyuMfg TY-HT400 pump parts and components are 100% interchangeable with Halliburton HT400 triplex pump and Halliburton grizzly pump, they all have three fluid end sections and are horizontal triplex and manufactured with 100 percent pure forged steel.

All the components of TY-HT400 pump are manufactured keeping durability and high efficacy in mind for handling arduous operations like cementing and pumping.

TianyunMfg HT-400 pump is equivalent in size to the HT-400 pumps manufactured by other manufacturers like Halliburton, SJS Serva. It is meticulously manufactured to perform operations like cementing, acidizing, fracturing, and aggregate packing. It wields a vigorous and portable design, which is able to be shipped anywhere, including far-flung and remote locations.

TianyunMfg HT-400 pump comes in handy particularly when accurate pumping levels and controllability is the ultimate need. The entire components and parts which a TY HT-400 pump possess are replaceable. There is a wide variety of fluid ends with which a pump could be attached in tandem, depending on the specifications needed for a specific operation.

The following sizes are manufactured for the TY-HT400 pump by TianyunMfg. The sizes are used for specific purposes like simulation and drilling, for simulation purposes the sizes include 6 inches, 5 inches, 4.5 inches, 4 inches, and 3.37 inches. For drilling service, the size ranges from 6 inches to 3.5 inches.

The peak pressure for the operability of the TY-HT400 pump varies depending on what kind of operation is being performed, for cementing operations the peak pressure is about 9,000 psi to 20,000 psi, and for industrial level drilling services the pressure ranges from 4500 psi to 10,000 psi.

After manufacturing the TianyunMfg TY-HT400 pump undergoes a strenuous testing procedure to ensure the best possible efficacy. These tests are necessary before moving the pump to the pumping site to avoid any mishap. The Chambers for fluid end are tested under extreme pressures which are far beyond the usual pressure threshold on the ground. After the assembly of fluid end Chambers, they are tested once again under extreme pressure conditions. The pump is tested for the third time when it is attached to the power end paraphernalia. Power end modules also undergo strenuous testing in the TianyuMfg testing facility.

After an hour of rigorous testing under increasing pressure and speed, the pump is assembled with the rest of the unit. After the culmination of testing at the testing site, the pump is further tested during the final inspection.

TianyunMfg TY-HT400 triplex pump has some frequently needed replaceable components. These parts can be replaced or added according to the specifications of the required operation. The most frequently needed replaceable parts of TY-HT400 triplex pump are as follows:

TianyuMfg supplies specific valve seat puller for HT400 valve seats replacement jobs. TianyuMfg HT400 valve seat puller consists of various components including clapper, lead screw, hydraulic actuator, and hand pump, and nut.

TianyuMfg valve seat puller is very easy to use and its maintenance is also relatively simple and easy. All you have to do is to insert the clapper inside the valve seat and screw the lead screws, then insert the actuator through the lead screw and place it on the cylinder, Screw the nuts and turn on the hand pump, this way you can remove the valve seats with ease.

Founded in 1936, Baxter Auto Parts is a family-owned and operated company that features replacement and performance parts and aftermarket accessories. It offers parts through various manufacturers, including Air Lift Company, Allison, Alco, Audiovox, Diamond Eye Manufacturing, Racer"s Choice, S & H Industries and Astro Pneumatic Tool Company. The company provides online order tracking services. Its products include alternators, starters, power steering control valves, water pumps, spark plugs, tonneau covers, mud flaps, booth filters, latex gloves and electrical accessories. Baxter Auto Parts also features car dusters, air fresheners, lubricants, programmable electronic horns, chrome accessories and car care products. The company maintains a location in Portland, Ore.

The reverse circulation drilling technology is that drilling fluid is pumped down to the annulus, through drill bit and inside of the drilling tool, comes back to the ground. It has many advantages, such as reducing the formation leakage, protecting the oil and gas formation, and cutting sample very clear etc. It includes air lifting, air and pump sucking reverse circulation drilling. Air lifting reverse circulation drilling needs air compressor, air tank, air box, double wall drill tool, air mixer and reverse drilling bit etc. By applying the original drilling rig, these equipments are connected to drill string and carried out the drilling work, after finishing drilling work, these equipments can be removed totally, and have no influence to the normal drilling work. Through testing and on-site application, these equipments are coordinative, drilled 400m in the leaking formation and got a better effect.

All type of controls on control panel for engine, hydraulic system control valves (directional, flow and pressure) compressor, mud pump, foam pump, winches etc shall be