Screw conveying and feeding device

Abstract

The utility model relates to the field of spiral conveyors, in particular to a spiral conveying feeding device which comprises a spiral conveyor, the spiral conveyor is arranged in a conveying pipe, a feeding box is fixedly arranged at one end of the conveying pipe, a feeding hopper is arranged at the top of the feeding box and communicated with the conveying pipe, and a discharging pipe is fixedly connected to the bottom of the other end of the conveying pipe. A sealing box is fixedly arranged at the bottom of the discharging pipe, an opening is formed in one side of the sealing box, a grid plate is slidably arranged at the opening, and a plunger pump buffering bin is rotatably arranged at the bottom of the sealing box; according to the device, horizontal or inclined sludge transportation is facilitated through the spiral conveyor, the feeding efficiency is improved, meanwhile, the sealing performance of the device is improved through the sealing box, sludge spilling is avoided, large blocky sludge and impurities can be conveniently treated and screened through the grid shed plate, and the device has the advantages of being simple in structure, convenient to operate and high in practicability. The conveying pipe is prevented from being blocked, and abnormal abrasion of the piston head caused by empty hitting of the plunger pump is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of screw conveyors, in particular to a screw conveyor feeding device. Background Art

[0002] As a feeding device, screw conveyor is widely used in building materials, environmental protection, chemical industry, electric power, metallurgy, coal, food and other industries. Screw conveyor is also used in sewage treatment plants. When the sludge is dehydrated, it is transported to the plunger pump through the screw conveyor, and finally the sludge is transported to the sludge silo. However, when the screw conveyor is used to transport the sludge to the plunger pump, when the sludge condenses into large hard blocks, it will cause the discharge port to be blocked, causing the plunger pump to run idle and cause damage, and there will also be a problem of sludge overflowing from the hopper. In addition, when unloading, the screw conveyor and the plunger pump are not sealed tightly, resulting in the viscosity of the sludge causing it to be scattered everywhere. Therefore, a screw conveying feeding device is needed to solve the problem that the existing screw conveyor cannot handle larger blocks and has poor sealing effect.

[0003] A Chinese patent with publication number CN220264124U discloses a screw conveyor, comprising a screw conveyor body, on the upper side of which a feed port is arranged; a feed port cylinder, which is assembled on the lower side of the feed port, the feed port cylinder is fixedly connected to the screw conveyor body, and the cross section of the feed port cylinder is circular; a base frame, which is assembled on the lower side of the screw conveyor body, and the base frame is fixed to the screw conveyor body by welding; a driving device is arranged on the left side of the screw conveyor body, a motor and a frequency converter are arranged inside the driving device, and the motor adjusts the running speed of the screw conveyor body through the frequency converter; a screw conveying cylinder is fixedly arranged on the right side of the screw conveyor body, the cross section of the screw conveying cylinder is circular, a discharge port is fixedly arranged on the lower side of the screw conveying cylinder, a button is arranged on the surface of the screw conveying cylinder, and a solenoid valve is arranged on the upper side of the discharge port; this screw conveyor has the advantages of dustproof, easy to move, easy to clean, and no material accumulation.

[0004] However, in the above patent, there is a lack of sealing components between the bolt conveyor and the unloading device, and the device cannot handle larger blocks, which easily leads to blockage of the conveyor. Utility Model Content

[0005] The utility model aims to provide a spiral conveying and feeding device, which can process larger lumps and avoid clogging of a plunger pump or a conveyor when conveying sludge, and has the advantage of good sealing effect.

[0006] The utility model provides a spiral conveying feeding device, comprising a spiral conveyor, which is arranged in a conveying pipe, a feed box is fixedly arranged at one end of the conveying pipe, a feed hopper is opened on the top of the feed box, the feed hopper is connected with the conveying pipe, a discharge pipe is fixedly connected to the bottom of the other end of the conveying pipe, a sealing box is fixedly arranged at the bottom of the discharge pipe, an opening is arranged on one side of the sealing box, a grid plate is slidably arranged at the opening, and a plunger pump buffer bin is rotatably arranged at the bottom of the sealing box.

[0007] Furthermore, the screw conveyor includes a drive motor, a rotating shaft and spiral blades. The drive motor is fixedly arranged at one end outside the conveying pipe. One end of the rotating shaft passes through the shell of the conveying pipe and is fixedly connected to the output end of the drive motor, and the other end is rotatably connected to the feed hopper. Multiple spiral blades are evenly distributed on the rotating shaft.

[0008] Furthermore, a slide groove is fixedly arranged on the inner wall of the sealed box, and sliders are fixedly arranged at both ends of the grid shelf plate, and the grid shelf plate is slidably arranged in the slide groove of the sealed box through the sliders.

[0009] Furthermore, the cross section of the feed hopper is funnel-shaped.

[0010] Furthermore, a first support leg is fixedly provided at the bottom of the feed box, and a second support leg is fixedly provided at the bottom of the plunger pump buffer bin.

[0011] The working principle and use principle of the utility model are as follows: the device pours the sludge into the feed hopper of the feed box, and uses a driving motor to drive the rotating shaft to rotate. The rotating rotating shaft drives the spiral fan blades to transport the sludge from the feed hopper along the conveying pipe to the discharge pipe in sequence. The sludge passing through the discharge pipe is transported to the plunger pump buffer bin through a sealing box. The sealing box improves the sealing effect of the device to prevent the sludge from spilling. The grid shelf in the sealing box can not only divide the larger block sludge, but also screen out impurities to prevent the sludge from clogging the discharge pipe. At the same time, the grid shelf plate slidably arranged on one side of the sealing box is convenient for timely cleaning and replacement of impurities and residual sludge screened out on the grid shelf plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the device facilitates horizontal or inclined transportation of sludge through a screw conveyor, thereby improving feeding efficiency; at the same time, the sealing box improves the sealing of the device to prevent sludge from spilling; the grid plate facilitates the processing and screening of larger block sludge and impurities, avoids blockage of the conveying pipe, and effectively prevents the plunger pump from running dry and causing abnormal wear of the piston head. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 It is a cross-sectional view of the overall structure of an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the grid slab in an embodiment of the utility model;

[0016] Figure 4 This is a cross-sectional view of the structure at point A of an embodiment of the utility model.

[0017] Explanation of the reference numerals: 1. conveying pipe; 11. screw conveyor; 12. driving motor; 13. rotating shaft; 14. spiral fan blade; 2. feed box; 21. feed hopper; 22. support leg one; 3. plunger pump buffer bin; 31. support leg two; 4. discharge pipe; 5. sealing box; 51. chute; 6. grid plate; 61. slider. DETAILED DESCRIPTION

[0018] according to Figure 1 As shown: a screw conveying and feeding device, including a screw conveyor 11, the screw conveyor 11 is arranged in a conveying pipe 1, a feed box 2 is fixedly arranged at one end of the conveying pipe 1, a feed hopper 21 is opened on the top of the feed box 2, the feed hopper 21 is connected to the conveying pipe 1, a discharge pipe 4 is fixedly connected to the bottom of the other end of the conveying pipe 1, a sealing box 5 is fixedly arranged at the bottom of the discharge pipe 4, an opening is provided on one side of the sealing box 5, a grid plate 6 is slidably arranged at the opening, and a plunger pump buffer bin 3 is rotatably arranged at the bottom of the sealing box 5; a support leg 22 is fixedly arranged at the bottom of the feed box 2, and a support leg 2 31 is fixedly arranged at the bottom of the plunger pump buffer bin 3.

[0019] In a specific implementation, a conveying pipe 1 is provided on one side of the feed box 2, a feed hopper 21 is provided on the top of the feed box 2, a screw conveyor 11 is provided in the conveying pipe 1, a discharge pipe 4 is provided at the bottom of the conveying pipe 1, the feed hopper 21, the conveying pipe 1 and the discharge pipe 4 are connected to each other, when in use, the sludge to be fed is poured into the feed hopper 21, the sludge is conveyed from the feed hopper 21 along the conveying pipe 1 to the discharge pipe 4 by the screw conveyor 11, and the sludge passes through the discharge pipe 4 and falls into the sealing box 5 by its own gravity. The sealing box 5 seals the discharge pipe 4 and the plunger pump buffer bin 3 to prevent the sludge from splashing during the falling process. An opening is opened in the sealing box 5. The grid plate 6 slidingly arranged in the opening can not only screen the debris, but also divide the larger block sludge to prevent the larger block sludge from clogging the discharge pipe 4 and the conveying pipe 1. The plunger pump buffer bin 3 can temporarily store the sludge that has been screened and filtered. The support leg 1 22 and the support leg 2 31 facilitate placing the feed box 2 and the plunger pump buffer bin 3 on the ground.

[0020] according to Figures 2 to 4As shown: the screw conveyor 11 includes a driving motor 12, a rotating shaft 13 and a spiral blade 14. The driving motor 12 is fixedly arranged at one end outside the conveying pipe 1. One end of the rotating shaft 13 passes through the shell of the conveying pipe 1 and is fixedly connected to the output end of the driving motor 12, and the other end is rotatably connected to the feed hopper 21. A plurality of spiral blades 14 are evenly distributed on the rotating shaft 13; a slide groove 51 is fixedly arranged on the inner wall of the sealing box 5, and sliders 61 are fixedly arranged at both ends of the grid plate 6. The grid plate 6 is slidably arranged in the slide groove 51 of the sealing box 5 through the slider 61; the cross section of the feed hopper 21 is funnel-shaped.

[0021] In a specific implementation, a driving motor 12 is arranged on the outside of the top of the conveying pipe 1, and the driving motor 12 drives the rotating shaft 13 to rotate. The rotating rotating shaft 13 drives the spiral fan blades 14 to rotate the sludge in the feed hopper 21 to achieve the purpose of gradual feeding and conveying. The sliders 61 at both ends of the grid plate 6 can be slidably arranged in the slide groove 51 of the opening of the sealing box 5. The sliding grid plate 6 is not only convenient for timely cleaning of debris and residual sludge on the grid plate 6, but also can be used to divide larger sludge. The funnel-shaped feed hopper 21 is convenient for quickly collecting the sludge at the bottom of the feed hopper 21 and transporting it through the screw conveyor 11.

Claims

1. A screw conveying feeding device, comprising a screw conveyor (11), characterized in that: The screw conveyor (11) is arranged in a conveying pipe (1); a feed box (2) is fixedly arranged at one end of the conveying pipe (1); a feed hopper (21) is provided at the top of the feed box (2); the feed hopper (21) is connected to the conveying pipe (1); a discharge pipe (4) is fixedly connected to the bottom of the other end of the conveying pipe (1); a sealing box (5) is fixedly arranged at the bottom of the discharge pipe (4); an opening is provided at one side of the sealing box (5); a grid plate (6) is slidably arranged at the opening; a plunger pump buffer bin (3) is rotatably arranged at the bottom of the sealing box (5).

2. A spiral conveying feeding device according to claim 1, characterized in that: The screw conveyor (11) comprises a driving motor (12), a rotating shaft (13) and a spiral blade (14); the driving motor (12) is fixedly arranged at one end outside the conveying pipe (1); one end of the rotating shaft (13) passes through the housing of the conveying pipe (1) and is fixedly connected to the output end of the driving motor (12); the other end is rotatably connected to the feed hopper (21); and a plurality of spiral blades (14) are evenly distributed on the rotating shaft (13).

3. A spiral conveying feeding device according to claim 1 or 2, characterized in that: A slide groove (51) is fixedly arranged on the inner wall of the sealed box (5), and sliders (61) are fixedly arranged at both ends of the grid shelf plate (6). The grid shelf plate (6) is slidably arranged in the slide groove (51) of the sealed box (5) through the sliders (61).

4. A spiral conveying feeding device according to claim 1 or 2, characterized in that: The cross section of the feed hopper (21) is funnel-shaped.

5. The spiral conveying feeding device according to claim 3, characterized in that: The cross section of the feed hopper (21) is funnel-shaped.

6. A spiral conveying feeding device according to claim 1, 2 or 5, characterized in that: A first support leg (22) is fixedly arranged at the bottom of the feed box (2), and a second support leg (31) is fixedly arranged at the bottom of the plunger pump buffer bin (3).

7. The spiral conveying feeding device according to claim 3, characterized in that: A first support leg (22) is fixedly provided at the bottom of the feed box (2), and a second support leg (31) is fixedly provided at the bottom of the plunger pump buffer bin (3).

8. The spiral conveying feeding device according to claim 4, characterized in that: A first support leg (22) is fixedly provided at the bottom of the feed box (2), and a second support leg (31) is fixedly provided at the bottom of the plunger pump buffer bin (3).

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