A new paste pump

Abstract

The present invention relates to the field of paste pumps, and the technical solution adopted is: a new paste pump, comprising a barrel and a feeding auger arranged in the barrel, wherein an extrusion mechanism for extruding materials is provided on the side wall of the barrel, and the feeding auger drives the extrusion mechanism to move along the axial direction of the barrel and circulate the extruded materials by rotating. The present invention utilizes the feeding auger for feeding, and can adapt to a variety of coal materials with different physical and chemical properties. At the same time, under the action of the extrusion mechanism, when the feeding auger rotates, the extrusion mechanism is driven to move linearly along the axial direction of the barrel. At the same time, the extrusion mechanism can be clamped between the blades of the feeding auger. The rotation of the feeding auger and the linear movement of the extrusion mechanism can squeeze the material between the blades of the feeding auger into the subsequent pipeline, thereby completing long-distance transportation; when transporting the same flow rate of coal slurry, the operating cost can be saved by more than 80%, and the energy consumption can be reduced by more than 80%.

Description

Technical Field

[0001] The present invention relates to the field of paste pumps, in particular to a novel paste pump. Background Art

[0002] Paste pumps are widely used in many industries that need to convey paste-like materials. In today's severe environmental situation, the transportation of coal slurry is particularly necessary in coal-fired chemical, fertilizer, power plants and other enterprises: during production, the coal combustion gas or tail gas of such enterprises will carry a large amount of unburned or incompletely burned coal ash; this part of the coal ash directly discharged into the atmosphere will cause serious pollution to the environment and cause serious waste, so it needs to be washed and recycled; the washed coal ash becomes a paste-like coal slurry; because the coal slurry outlet is generally far away from the recycling combustion furnace, it is necessary to use a paste pump to transport it through a pipeline, thus avoiding the time-consuming and labor-intensive transportation by car and secondary pollution.

[0003] Traditional paste pumps are hydraulically driven plunger pumps, primarily consisting of an actuator, hydraulic power unit, control unit, lubrication unit, and cooling unit. The actuator of a paste pump primarily consists of two hydraulic cylinders driving two delivery cylinders, which alternately draw in and deliver material.

[0004] The above traditional paste pumps have very strict requirements on the physical and chemical properties of coal sludge (such as particle size, moisture content, fluidity, etc.) when used to transport coal sludge. To achieve long-distance transportation, the paste pump needs to add many auxiliary devices. For example, the front end of the paste pump feed port needs to be equipped with: filter press, feed hopper, crusher, sticky material vibrating screen, strong mixing bin, multi-functional mixing bin, gate valve, positive pressure screw feeder, screw conveyor; the discharge port of the paste pump needs to be equipped with: special material conveying pipe, reversing valve, box scraper, rotary positioner, etc., which increases the cost of the paste pump system itself; secondly, too many auxiliary devices will lead to serious energy consumption and high maintenance costs. Summary of the Invention

[0005] The object of the present invention is to provide a novel paste pump having the advantages of simple structure, reduced energy consumption, reduced cost, strong practicality, etc.

[0006] In order to achieve the above-mentioned purpose of the invention, the technical solution adopted by the present invention is: a new type of paste pump, including a barrel and a feeding auger arranged in the barrel, and an extrusion mechanism for extruding the material is provided on the side wall of the barrel. The feeding auger drives the extrusion mechanism to move along the axial direction of the barrel and circulate the extruded material by rotating.

[0007] Preferably, the extrusion mechanism includes a mounting frame arranged on the side wall of the barrel, and a slide groove extending along the axial direction of the barrel is provided on the side wall of the barrel, a sealing plate for sealing the slide groove is provided on the slide groove, a through hole is provided on the sealing plate, and a slider is passed through the through hole;

[0008] The extrusion mechanism further comprises an insertion control member for controlling the slider to be inserted into the barrel and clamped between the blades of the feed auger, and an exit control member for controlling the slider to be exited from the barrel.

[0009] Preferably, the insertion control member includes a first push rod, and the first push rod is mounted on a mounting bracket close to the feed side of the barrel.

[0010] Preferably, the exit control member comprises a cam arranged on the shaft of the feed auger, and the cam is located on the discharge side of the barrel.

[0011] Preferably, a sealing cover for sealing the slider is provided on the sealing plate, and a T-shaped push rod is inserted into the sealing cover.

[0012] Preferably, the slide groove is provided with ridges on both side walls of the barrel in the axial direction, and the ridges are provided with notches near the feed side and the discharge side. The sealing plate rests on one side wall of the ridge, and the slider is T-shaped. The slider extends into the barrel or exits from the barrel through the notch.

[0013] Preferably, the mounting frame is also provided with a clamping assembly for adjusting the pressure between the sealing plate and the slide groove; the clamping assembly includes a pair of U-shaped frames, each of the U-shaped frames is provided with a clamping roller, and the clamping roller is in contact with the outer wall of the sealing plate; the side walls of the U-shaped frames are provided with mounting tubes, and an adjusting rod is passed through the mounting tubes, and a spring is provided between one end of the adjusting rod and the inner wall of the end face of the mounting tube, and the other end of the adjusting rod is passed through the mounting frame and is threadedly matched with the mounting frame.

[0014] Preferably, both ends of the barrel are provided with a cover, the length of the sealing plate is greater than the length of the barrel, and both ends of the sealing plate are passed through the cover, and a second push rod for driving the sealing plate to move is provided in one of the cover.

[0015] Preferably, it further comprises a machine base arranged below the barrel, on which an asynchronous motor and a reducer transmission-connected to the asynchronous motor are provided, and the reducer is transmission-connected to the shaft of the feed auger.

[0016] The beneficial effects of the present invention are concentrated in: the present invention has the advantages of simple structure, reduced energy consumption, reduced cost, strong practicality, etc.; specifically, the use of a feeding auger for feeding can adapt to a variety of coal materials with different physical and chemical properties. At the same time, under the action of the extrusion mechanism, when the feeding auger rotates, it drives the extrusion mechanism to move linearly along the axial direction of the barrel. At the same time, the extrusion mechanism can be clamped between the blades of the feeding auger. The rotation of the feeding auger and the linear movement of the extrusion mechanism can squeeze the material between the blades of the feeding auger into the subsequent pipeline, thereby completing long-distance transportation; when transporting the same flow rate of coal slime, the operating cost can be saved by more than 80% and the energy consumption can be reduced by more than 80%. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the internal structure of the paste pump of the present invention;

[0018] Figure 2 This is a schematic diagram of the paste pump of the present invention in a state where the slider is extended;

[0019] Figure 3 yes Figure 1 An enlarged view of part A in the structure shown;

[0020] Figure 4 This is a top view of the attachment installation structure of the paste pump of the present invention;

[0021] Figure 5 This is a front view of the attachment installation structure of the paste pump of the present invention;

[0022] Figure numerals: 1. barrel; 2. feed auger; 3. mounting bracket; 4. slide; 5. sealing plate; 6. through hole; 7. slider; 8. cam; 9. sealing cover; 10. push rod; 11. ridge; 12. notch; 13. U-shaped frame; 14. pressing roller; 15. mounting barrel; 16. adjusting rod; 17. spring; 18. cover; 19. first push rod; 20. base; 21. asynchronous motor; 22. reducer. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1-5 As shown, a new paste pump includes a barrel 1 and a feeding auger 2 arranged in the barrel 1, and a base 20 arranged below the barrel 1. The base 20 is also provided with an asynchronous motor 21 and a reducer 22 connected to the asynchronous motor 21 through a coupling. The reducer 22 is connected to the shaft of the feeding auger 2 through a belt. In this embodiment, the asynchronous motor 21 is a three-phase flameproof asynchronous motor 21, and the reducer 22 is a hardened cylindrical gear reducer 22.

[0025] The difference in this embodiment is that an extrusion mechanism for extruding the material is provided on the side wall of the barrel 1. Figure 1 、 2 In the figure, the barrel 1 is placed horizontally, the feed port of the barrel 1 is arranged on the other side wall of the barrel 1, the feed port is opposite to the extrusion mechanism and is located on the right side of the barrel 1, and the discharge port of the barrel 1 is located at the bottom left side of the barrel 1; the feeding auger 2 drives the extrusion mechanism to move along the axial direction of the barrel 1 and circulates the extruded material by rotating.

[0026] Specifically, the extrusion mechanism includes a mounting frame 3 provided on the side wall of the barrel 1. The mounting frame 3 has a U-shaped structure and is provided on the side wall of the barrel 1 with a chute 4 extending axially along the barrel 1. The chute 4 is provided with a sealing plate 5 for sealing the chute 4. The sealing plate 5 is provided with a through hole 6. A slider 7 is passed through the through hole 6.

[0027] The extrusion mechanism also includes an insertion control member for controlling the slider 7 to extend into the barrel 1 and be clamped between the blades of the feed auger 2, and an exit control member for controlling the slider 7 to exit from the barrel 1. In this embodiment, the insertion control member includes a first push rod 19, which is mounted on a mounting bracket 3 close to the feed side of the barrel 1. The first push rod 19 is preferably an electric push rod. When the slider 7 is on the right side, the telescopic end of the first push rod 19 abuts against the slider 7, and the first push rod 19 pushes the slider 7 between the blades of the feed auger 2 in the barrel 1. During the rotation, the feed auger 2 will drive the sliding and sealing plate 5 to move linearly along the axial seat of the barrel 1 in the chute 4, so that the material between the blades can be squeezed out; the exit control member includes a setting The cam 8 on the shaft of the feed auger 2 is located on the discharge side of the barrel 1. The cam 8 is equivalent to an eccentric wheel. When the slider 7 moves to the left, the slider 7 is pushed out by the action of the cam 8; after the slider moves from the right to the left, the sealing plate 5 needs to be reset. Therefore, a cover 18 is provided at both ends of the barrel 1. The length of the sealing plate 5 is greater than the length of the barrel 1. In this embodiment, the length of the sealing plate 5 is three times the length of the barrel 1, and both ends of the sealing plate 5 are passed through the cover 18. A second push rod (not shown in the figure) is provided in one of the cover 18 to drive the sealing plate 5 to move. The second push rod can be a hydraulic rod or an electric push rod. After the slider 7 moves to the extreme position on the left, the sealing plate 5 is reset by the second push rod.

[0028] Furthermore, in order to improve the sealing performance between the slider 7 and the sealing plate 5, a sealing cover 9 for sealing the slider 7 is provided on the sealing plate 5, and a T-shaped push rod 10 is inserted into the sealing cover 9. The first push rod 19 pushes the push rod 10, and then pushes the slider 7 into the barrel 1 through the push rod 10.

[0029] In order to prevent the slider 7 from withdrawing from the barrel 1 under the action of material pressure during the extrusion process, ridges 11 are provided on the two opposite side walls of the chute 4 located in the axial direction of the barrel 1, and the ridges 11 are provided with notches 12 close to the feed side and the discharge side. The sealing plate 5 rests on one side wall of the ridge 11, and the slider 7 has a T-shaped structure. The slider 7 extends into the barrel 1 or withdraws from the barrel 1 through the notch 12. The width of the chute 4 is adapted to the width of the larger section of the slider 7, the distance between the ridges 11 is adapted to the width of the smaller section of the slider 7, and the length of the slider 7 is adapted to the length of the notch 12. After the first push rod 19 pushes the slider 7 into the barrel 1, the slider 7 starts to move to the left. At this time, the end face of the larger section of the slider 7 close to the outer side of the barrel 1 rests on the other side wall of the ridge 11, which plays a positioning role for the slider 7 during the extrusion process of the material.

[0030] Furthermore, since the sealing plate 5 is in motion, and the rotation speed of the feed auger 2 and the type of material are different, the pressure on the sealing plate 5 is also different. In order to adapt to different pressure states, a clamping component for adjusting the pressure between the sealing plate 5 and the slide 4 is also provided on the mounting frame 3; the clamping component includes a pair of U-shaped frames 13, and the U-shaped frames 13 are each provided with a clamping roller 14, and the clamping roller 14 is in contact with the outer wall of the sealing plate 5; the side walls of the U-shaped frames 13 are each provided with a mounting tube 15, and an adjusting rod 16 is passed through the mounting tube 15, and a spring 17 is provided between one end of the adjusting rod 16 and the inner wall of the end face of the mounting tube 15, and the other end of the adjusting rod 16 is passed through the mounting frame 3 and is threadedly matched with the mounting frame 3. The pressure between the clamping roller 14 and the sealing plate 5 is adjusted by adjusting the adjusting rod 16.

[0031] It should be noted that for the aforementioned various method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and units involved are not necessarily required by this application.

Claims

1. A novel paste pump, comprising a barrel (1) and a feeding auger (2) arranged in the barrel (1), characterized in that: An extrusion mechanism for extruding materials is provided on the side wall of the barrel (1), and the feed auger (2) drives the extrusion mechanism to move along the axial direction of the barrel (1) and circulate the extruded materials by rotating. The extrusion mechanism comprises a mounting frame (3) arranged on the side wall of the barrel (1), and a slide groove (4) extending along the axial direction of the barrel (1) is provided on the side wall of the barrel (1), a sealing plate (5) for sealing the slide groove (4) is provided on the slide groove (4), a through hole (6) is provided on the sealing plate (5), and a slider (7) is inserted into the through hole (6); The extrusion mechanism further comprises an insertion control member for controlling the slider (7) to be inserted into the barrel (1) and to be clamped between the blades of the feed auger (2), and an exit control member for controlling the slider (7) to be exited from the barrel (1); The mounting frame (3) is also provided with a clamping assembly for adjusting the pressure between the sealing plate (5) and the slide groove (4); the clamping assembly includes a pair of U-shaped frames (13), each of which is provided with a clamping roller (14), and the clamping roller (14) is in contact with the outer wall of the sealing plate (5); a mounting tube (15) is provided on the side wall of the U-shaped frame (13), and an adjusting rod (16) is passed through the mounting tube (15), and a spring (17) is provided between one end of the adjusting rod (16) and the inner wall of the end face of the mounting tube (15), and the other end of the adjusting rod (16) is passed through the mounting frame (3) and forms a threaded fit with the mounting frame (3); The insertion control member comprises a first push rod (19), which is mounted on a mounting frame (3) close to the feeding side of the barrel (1).

2. A novel paste pump according to claim 1, characterized in that: The exit control member comprises a cam (8) arranged on the shaft of the feeding auger (2), and the cam (8) is located on the discharge side of the barrel (1).

3. A novel paste pump according to claim 1, characterized in that: The sealing plate (5) is provided with a sealing cover (9) for sealing the slider (7), and a T-shaped push rod (10) is inserted into the sealing cover (9).

4. A novel paste pump according to claim 1, characterized in that: The slide groove (4) is provided with ridges (11) on both axially opposite side walls of the barrel (1), and the ridges (11) are provided with notches (12) close to the feed side and the discharge side. The sealing plate (5) abuts against one side wall of the ridge (11), and the slider (7) is in a T-shaped structure. The slider (7) extends into the barrel (1) or exits from the barrel (1) through the notch (12).

5. A novel paste pump according to claim 1, characterized in that: Both ends of the barrel (1) are provided with a cover (18), the length of the sealing plate (5) is greater than the length of the barrel (1), and both ends of the sealing plate (5) are passed through the cover (18), and a second push rod for driving the sealing plate (5) to move is provided in one of the cover (18).

6. A novel paste pump according to claim 1, characterized in that: The invention also includes a machine base (20) arranged below the machine barrel (1), wherein the machine base (20) is provided with an asynchronous motor (21) and a reducer (22) connected in transmission with the asynchronous motor (21), and the reducer (22) is connected in transmission with the shaft of the feeding auger (2).

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