Reciprocating type spiral material distributing device for sludge hopper

Abstract

The utility model provides a reciprocating type spiral material distributing device for a sludge hopper, which comprises a reciprocating driving device, a material distributing trolley, channel steel tracks and a control box, and the channel steel tracks are arranged on two opposite sides of the sludge hopper; the distributing trolley is slidably arranged on the channel steel track, and the reciprocating driving device is arranged at one end of the channel steel track and used for driving the distributing trolley; the material distribution trolley comprises a rack, a gear motor and a spiral material distribution roller, the two ends of the rack are arranged on the two channel steel rails in a sliding mode respectively, the spiral material distribution roller is installed on the rack, and the gear motor is installed at the end of the rack and used for driving the spiral material distribution roller; according to the utility model, the material distribution trolley forwards and reversely advances in the channel steel track, and the spiral material distribution roller on the material distribution trolley rotates, so that accumulated sludge in the central area in the sludge hopper is conveyed to empty areas on two sides, and the sludge can be flatly paved in the sludge hopper; and the effective volume of the sludge hopper is effectively increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to dewatering sludge storage technical field of sewage treatment plant, specifically, relate to a reciprocating spiral distributing device for sludge hopper. BACKGROUND

[0002] The residual sludge of the sewage treatment plant deepening system needs to be concentrated and dewatered first, and then transported to a qualified treatment unit for incineration and other harmless treatment. Under normal circumstances, before transportation, the dewatered sludge is lifted to a high place by a screw conveyor or a screw pump and then falls into the sludge hopper. After the sludge is stored in the sludge hopper to a certain amount, it will be unloaded onto a sludge transport vehicle for transportation. Limited by the height of the plant and the transport vehicle, the discharge port of the screw conveyor or the screw pump pipeline is close to the upper opening of the sludge hopper, and the height difference is basically within 1 meter. The dewatered sludge has a water content of ≤80% and is highly viscous, with a large angle of repose. This characteristic causes the sludge to form a tower-shaped accumulation at the falling point (usually the center of the sludge hopper) when it falls from a high place, and rarely slides to the four sides, becoming higher and higher, and even blocking the discharge port.

[0003] This situation can cause a large amount of volume on the edge of the sludge hopper to be unfilled, with a low volume utilization rate. On the other hand, the sludge blocking the discharge port can increase the working load of the screw conveyor or the screw pump and reduce the service life of the equipment parts. Therefore, when the sludge is about to accumulate to the discharge port, the staff needs to climb to the ladder beside the sludge hopper and use tools such as shovels and rakes to push the accumulated sludge to the empty area. However, due to the wide opening of the sludge hopper, the length of the tools is not enough, the sludge is sticky and heavy, and the effect of pushing and shoveling the sludge is not ideal. As the amount of sludge in the sludge hopper continues to increase, the frequency of sludge accumulation to the discharge port also increases, and the workload of the staff will increase a lot. SUMMARY

[0004] In view of the defects in the prior art, the purpose of the present utility model is to provide a reciprocating spiral distributing device for a sludge hopper.

[0005] The reciprocating spiral distributing device for a sludge hopper according to the present utility model comprises a reciprocating driving device, a distributing trolley, channel steel tracks, and a control box, the channel steel tracks are installed on two opposite edges of the sludge hopper;

[0006] The distributing trolley is slidingly arranged on the channel steel tracks, and the reciprocating driving device is arranged at one end of the channel steel tracks and is used to drive the distributing trolley;

[0007] The distributing trolley comprises a rack, a reduction motor, and a spiral distributing roller, the two ends of the rack are slidingly arranged on the two channel steel tracks respectively, the spiral distributing roller is installed on the rack, and the reduction motor is installed at the end of the rack and is used to drive the spiral distributing roller.

[0008] The reduction motor and the reciprocating driving device are electrically connected with the control box.

[0009] Preferably, the cloth trolley comprises a first reduction motor, a first spiral cloth roller, a second reduction motor, a second spiral cloth roller, a first transmission nut and a second transmission nut.

[0010] The first spiral cloth roller and the second spiral cloth roller are installed side by side at the bottom of the rack, and the blades on the first spiral cloth roller and the second spiral cloth roller rotate in opposite directions.

[0011] The first reduction motor and the second reduction motor are respectively installed at the two ends of the rack, and are respectively used to drive the first spiral cloth roller and the second spiral cloth roller to rotate.

[0012] The first transmission nut and the second transmission nut are respectively installed at the two ends of the rack, and are respectively connected with the transmission screw rod of the reciprocating driving device.

[0013] Preferably, the reciprocating driving device comprises a base frame, a driving motor, a double-output shaft reduction machine, a first coupling, a transmission shaft, a right-angle commutator, a second coupling, a screw rod bearing seat, a first transmission screw rod and a second transmission screw rod.

[0014] The base frame is installed on the side of the sludge hopper perpendicular to the channel steel track, the double-output shaft reduction machine is fixedly installed on the base frame, and the driving motor is directly connected with the double-output shaft reduction machine to transmit the torque to both sides of the double-output shaft reduction machine.

[0015] The output shafts on both sides of the double-output shaft reduction machine are connected with the input shafts of the right-angle commutators through the first coupling and the transmission shaft in sequence, and the torque is transmitted by being turned by 90°.

[0016] The output shafts of the right-angle commutators on both sides of the double-output shaft reduction machine rotate in opposite directions, and the output shafts of the right-angle commutators on both sides are connected with the shaft heads of the first transmission screw rod and the second transmission screw rod through the second coupling respectively.

[0017] The screw rod bearing seats are installed at both ends of the first transmission screw rod and the second transmission screw rod, and the screw rod bearing seats are fixed on the base frame, and the first transmission screw rod and the second transmission screw rod rotate in opposite directions.

[0018] The first transmission screw rod and the second transmission screw rod are transmissionally connected with the two ends of the rack through the first transmission nut and the second transmission nut respectively.

[0019] Preferably, trapezoidal external threads are arranged on the first transmission screw rod and the second transmission screw rod, and the diameters and pitches of the first transmission screw rod and the second transmission screw rod are the same, and the first transmission screw rod and the second transmission screw rod rotate in opposite directions.

[0020] Preferably, channel steel wheels are installed at the bottom of both end surfaces of the frame, the channel steel wheels are placed in the channel steel tracks, and the first transmission nut and the second transmission nut are respectively installed at the bottom of both end surfaces of the frame.

[0021] Preferably, the first spiral distribution roller and the second spiral distribution roller are both solid shafts, and spiral blades with opposite rotation directions are welded on the left and right sides of the shaft with the center as the boundary;

[0022] Both ends of the first spiral distribution roller and the second spiral distribution roller are equipped with roller bearing seats, and the two roller bearing seats are fixedly installed in the installation notches at both ends of the frame respectively;

[0023] The first reduction motor and the second reduction motor are respectively fixedly mounted on two ends of the frame and are respectively connected to the shaft heads of the first spiral distribution roller and the second spiral distribution roller.

[0024] Preferably, the material distribution trolley further comprises a clamping plate and a sliding bearing, wherein the sliding bearing is sleeved on the outside of the central axis of the first spiral material distribution roller and the second spiral material distribution roller;

[0025] The clamping plate is installed in the installation notch at the end of the frame and is used to fix the sliding bearing in the installation notch.

[0026] Preferably, the frame is an I-beam structure, and the first spiral distribution roller and the second spiral distribution roller are respectively installed on both sides of the vertical plate of the I-beam structure;

[0027] Nylon lining plates are installed between the two sides of the vertical plate of the I-beam structure and the first spiral distribution roller and the second spiral distribution roller.

[0028] Preferably, the channel steel track and the base frame support of the reciprocating drive device are welded to the sludge hopper, and the lower edge of the frame of the material distribution trolley is flush with the upper edge of the sludge hopper.

[0029] Preferably, a frequency converter and a PLC are provided in the control box, and a proximity switch is installed on the edge of the sludge hopper at a preset stop position, and the proximity switch is connected to the control box signal.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The utility model uses a reciprocating drive device to drive the distribution trolley to move forward and reverse in the channel steel track. At the same time, the spiral distribution roller on the distribution trolley rotates to transport the accumulated sludge in the central area of ​​the sludge hopper to the empty areas on both sides, so that the sludge can be spread flat in the sludge hopper. The device does not require manpower and operates automatically after being turned on, effectively increasing the effective volume of the sludge hopper. The device is easy to operate, simple in structure, strong and durable, and the parts are easy to replace. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0035] Figure 3 This is a left-side structural schematic diagram of the present utility model;

[0036] Figure 4 for Figure 1 AA cross-sectional view;

[0037] Figure 5 yes Figure 4 BB cross-sectional view;

[0038] Figure 6 yes Figure 4 CC cross-sectional view;

[0039] Figure 7 yes Figure 4 DD cross-sectional view;

[0040] Figure 8 yes Figure 4 EE cross-sectional view.

[0041] The figure shows:

[0042] Reciprocating drive device 1, material distribution trolley 2, channel steel track 3, proximity switch 4, control box 5, sludge hopper 6, base frame 101, drive motor 102, dual output shaft reducer 103, first coupling 104, transmission shaft 105, right-angle commutator 106, second coupling 107, screw bearing seat 108, first transmission screw 109, second transmission screw 110, frame 201, channel steel wheel 202, first transmission nut 203, second transmission nut 204, first reduction motor 205, first spiral material distribution roller 206, second reduction motor 207, second spiral material distribution roller 208, roller bearing seat 209, clamping plate 210, sliding bearing 211, nylon lining plate 212 DETAILED DESCRIPTION

[0043] The utility model discloses a kind of reciprocating screw distributing devices for sludge hopper, using reciprocating drive device to drive distributing trolley to advance in channel steel track forward and backward, while the screw distributing roller on distributing trolley rotates, the accumulated sludge of the center area in sludge hopper is transported to the region of two sides emptying, so that sludge can be laid in sludge hopper, the device can be automatically operated, effectively improve the effective volume of sludge hopper, and save artificial cost.

[0044] The utility model discloses a kind of reciprocating screw distributing devices for sludge hopper, using reciprocating drive device to drive distributing trolley to advance in channel steel track forward and backward, while the screw distributing roller on distributing trolley rotates, the accumulated sludge of the center area in sludge hopper is transported to the region of two sides emptying, so that sludge can be laid in sludge hopper, the device can be automatically operated, effectively improve the effective volume of sludge hopper, and save artificial cost.

[0045] According to the reciprocating screw distributing device for sludge hopper provided by the utility model, as shown in Figure 1-5 The device is composed of reciprocating drive device 1, distributing trolley 2, channel steel track 3, proximity switch 4 and control box 5.

[0046] Reciprocating drive device 1 is composed of base frame 101, drive motor 102, double-output shaft speed reducer 103, first coupling 104, transmission shaft 105, right-angle commutator 106, second coupling 107, screw rod bearing seat 108, first transmission screw rod 109 and second transmission screw rod 110. Double-output shaft speed reducer 103 is fixed on base frame 101 by bolts. Drive motor 102 is directly connected with double-output shaft speed reducer 103, and the torque generated is transmitted to both sides. The output shaft of double-output shaft speed reducer 103 is connected with the input shaft of right-angle commutator 106 through first coupling 104 and transmission shaft 105, and the torque is transmitted by turning 90°. The output shafts of right-angle commutators 106 on both sides rotate in opposite directions. The output shaft of right-angle commutator 106 is connected with the shaft head of first transmission screw rod 109 through second coupling 107. Screw rod bearing seats 108 are installed at both ends of first transmission screw rod 109. Screw rod bearing seats 108 are fixed on base frame 101 by bolts, and fixed by welding stop blocks on both sides in the axial direction. Second transmission screw rod 101 is installed in the same way as first transmission screw rod 109. First transmission screw rod 109 and second transmission screw rod 110 are both trapezoidal external threads, with the same diameter and pitch but opposite rotation directions. Drive motor 102 drives first transmission screw rod 109 and second transmission screw rod 110 to rotate forward and reverse at the same time through this series of transmission.

[0047] The material distribution trolley 2 consists of a frame 201, channel steel wheels 202, a first drive nut 203, a second drive nut 204, a first reduction motor 205, a first spiral distribution roller 206, a second reduction motor 207, a second spiral distribution roller 208, a roller bearing seat 209, a clamping plate 210, a sliding bearing 211, and a nylon liner 212. The frame 201 utilizes an I-beam structure to ensure rigidity. Two channel steel wheels 202 are mounted at the lower end of the frame 201. The channel steel wheels 202 fit within the channel steel track 3, enabling the frame 201 to move back and forth. The first and second drive nuts 203 and 204 each have trapezoidal internal threads with the same diameter and pitch but opposite rotation directions. They are bolted to the lower end of the frame 201 and secured with welded stops on either side of the axial direction. The first drive nut 203 corresponds to the first drive screw 109, and the second drive nut 204 corresponds to the second drive screw 110. The simultaneous rotation of the first and second transmission screws 109 and 110 drives the first and second transmission nuts 203 and 204 forward and backward, thereby driving the frame 201 forward and backward. The first spiral distribution roller 206 is a solid shaft with left-hand and right-hand spiral blades welded to its center, respectively. This facilitates the first spiral distribution roller 206 to transport sludge accumulated in the center of the sludge hopper 6 to the empty areas on either side. Roller bearing blocks 209 are mounted at each end of the first spiral distribution roller 206 and inserted horizontally into the frame 201 through a notch in the frame 201. The roller bearing blocks 209 are bolted to both ends of the frame 201. The shaft head of the first spiral distribution roller 206 is inserted into the hollow shaft of the first reduction motor 205 and secured with bolts and a baffle. The first reduction motor 205 is bolted to one end of the frame. A sliding bearing 211 is mounted in the center of the first spiral distribution roller 206. The sliding bearing 211 is a split, self-lubricating sliding bearing, mounted on the frame 201 via a clamping plate 210 and screws. This prevents the first spiral distribution roller 206 from bending during operation. The second spiral distribution roller 208 and the second reduction motor 207 are mounted in the same manner as the first spiral distribution roller 206 and the first reduction motor 205. The first spiral distribution roller 206 and the first reduction motor 205 are rotated 180° horizontally to create the second spiral distribution roller 208 and the second reduction motor 207. The first and second spiral distribution rollers 206 and 208 are mounted side by side on either side of the I-beam of the frame 201. Nylon linings 212 are installed on either side of the vertical plates of the I-beam of the frame 201 to effectively prevent sludge from adhering to them.

[0048] The control box 5 houses a frequency converter and programmable logic controller (PLC), which controls the start and stop of the entire system. It controls the drive motor 102, first reduction motor 205, and second reduction motor 206 to start, rotate forward and reverse, and adjust speed according to set times. It also controls the material distribution trolley 2 to stop at a set position based on signals from the proximity switch 4. The channel rail 3 and base frame 101 are welded to the sludge hopper, ensuring that the lower edge of the I-beam of the frame 201 of the material distribution trolley 2 is flush with the top of the sludge hopper 6. The proximity switch 4 is mounted on the sludge hopper 6 according to the set stop position of the material distribution trolley 2. When the drive nut 204 approaches, the proximity switch 4 sends a signal to the control box 5.

[0049] The working principle of this utility model is as follows:

[0050] During operation, when the operator observes that the sludge in the sludge hopper 6 has accumulated to a level above the top of the hopper 6, the entire system can be activated. The drive motor 102 is activated, driving the first and second drive screws 109 and 110 to rotate. These, in turn, drive the distribution trolley 2 in the forward direction via their corresponding first and second drive nuts 203 and 204. The forward direction is defined as when the distribution trolley 2 approaches the drive motor 102, and the reverse direction as when the distribution trolley 2 moves away from the drive motor 102. Simultaneously, the first reduction motor 205 is activated, and the second reduction motor 207 is stopped, driving the first spiral distribution roller 206 to rotate. When the distribution trolley 2 encounters sludge accumulated in the center of the sludge hopper 6, the left-hand and right-hand spiral blades on either side of the first spiral distribution roller 206 scrape the sludge and transfer it to the empty areas on either side of the center of the hopper 6. The lower edge of the I-beam of the frame 201 also scrapes any missed sludge and feeds it to the spiral blades. When the distribution cart 2 reaches the set position at the edge of the sludge hopper 6, the proximity switch 4 transmits a signal to the control box 5, causing the drive motor 102 and the first reduction motor 205 to stop. After a set waiting time (the waiting time can be set), the drive motor 102 automatically starts to reverse, causing the distribution cart 2 to move in the opposite direction. Simultaneously, the second reduction motor 207 automatically starts the first reduction motor 205, which is in its stopped state, to rotate the second spiral distribution roller 208. When the distribution cart 2 encounters sludge accumulated in the center of the sludge hopper 6 as it moves forward, the left-hand and right-hand spiral blades on the second spiral distribution roller 208 scrape the sludge and transfer it to the empty areas on either side of the center of the sludge hopper 6. When the distribution cart 2 reaches the set position at the edge of the sludge hopper, the proximity switch 4 transmits a signal to the control box 5, causing the drive motor 102 and the second reduction motor 207 to stop. After a set waiting time, this process repeats until the sludge hopper 6 is full and the operator stops the device.

[0051] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0052] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A reciprocating spiral feeding device for a sludge hopper, characterized in that: It comprises a reciprocating drive device (1), a material distribution trolley (2), a channel steel track (3) and a control box (5), wherein the channel steel track (3) is installed on two opposite sides of the sludge hopper (6); The material distribution trolley (2) is slidably arranged on the channel steel track (3); the reciprocating drive device (1) is arranged at one end of the channel steel track (3) and is used to drive the material distribution trolley (2); The material distribution trolley (2) comprises a frame (201), a reduction motor and a spiral material distribution roller, the two ends of the frame (201) are respectively slidably arranged on two channel steel rails (3), the spiral material distribution roller is installed on the frame (201), and the reduction motor is installed at the end of the frame (201) and is used to drive the spiral material distribution roller; The reduction motor and the reciprocating drive device (1) are both electrically connected to the control box (5).

2. The reciprocating spiral material distribution device for sludge hopper according to claim 1, characterized in that: The material distribution trolley (2) comprises a first reduction motor (205), a first spiral material distribution roller (206), a second reduction motor (207), a second spiral material distribution roller (208), a first transmission nut (203) and a second transmission nut (204); The first spiral distribution roller (206) and the second spiral distribution roller (208) are installed in parallel at the bottom of the frame (201), and the blades on the first spiral distribution roller (206) and the second spiral distribution roller (208) rotate in opposite directions; The first reduction motor (205) and the second reduction motor (207) are respectively mounted at two ends of the frame (201), and are used to drive the first spiral material distribution roller (206) and the second spiral material distribution roller (208) to rotate respectively; The first transmission nut (203) and the second transmission nut (204) are respectively mounted on both ends of the frame (201), and are respectively connected to the transmission screw of the reciprocating drive device (1).

3. The reciprocating spiral material distribution device for a sludge hopper according to claim 2, characterized in that: The reciprocating drive device (1) comprises a base frame (101), a drive motor (102), a dual-output shaft reducer (103), a first coupling (104), a transmission shaft (105), a right-angle commutator (106), a second coupling (107), a screw bearing seat (108), a first transmission screw (109), and a second transmission screw (110); The base frame (101) is mounted on a side of the sludge hopper (6) perpendicular to the channel steel track (3), the dual-output shaft reducer (103) is fixedly mounted on the base frame (101), and the drive motor (102) is directly connected to the dual-output shaft reducer (103), and the generated torque is transmitted to both sides of the dual-output shaft reducer (103); The output shafts on both sides of the dual-output shaft reducer (103) are connected to the input shaft of the right-angle commutator (106) through the first coupling (104) and the transmission shaft (105) in sequence, and the torque is diverted to 90 degrees for transmission; The output shafts of the right-angle commutators (106) on both sides of the dual-output shaft reducer (103) rotate in opposite directions, and the output shafts of the right-angle commutators (106) on both sides are respectively connected to the shaft heads of the first transmission screw (109) and the second transmission screw (110) through the second coupling (107); Both ends of the first transmission screw (109) and the second transmission screw (110) are equipped with screw bearing seats (108), the screw bearing seats (108) are fixed on the base frame (101), and the first transmission screw (109) and the second transmission screw (110) have opposite rotation directions; The first transmission screw (109) and the second transmission screw (110) are respectively connected to the two ends of the frame (201) through a first transmission nut (203) and a second transmission nut (204).

4. The reciprocating spiral material distribution device for a sludge hopper according to claim 3, characterized in that: The first transmission screw (109) and the second transmission screw (110) are both provided with trapezoidal external threads, and the first transmission screw (109) and the second transmission screw (110) have the same diameter and pitch, but opposite rotation directions.

5. The reciprocating spiral material distribution device for sludge hopper according to claim 2, characterized in that: Channel steel wheels (202) are installed at the bottom of both end surfaces of the frame (201), and the channel steel wheels (202) are placed in the channel steel tracks (3). A first transmission nut (203) and a second transmission nut (204) are respectively installed at the bottom of both end surfaces of the frame (201).

6. The reciprocating spiral material distribution device for a sludge hopper according to claim 2, characterized in that: The first spiral distribution roller (206) and the second spiral distribution roller (208) are both solid shafts, with spiral blades of opposite rotation directions welded to the left and right sides of the shafts with the center as the boundary; Roller bearing seats (209) are installed at both ends of the first spiral distribution roller (206) and the second spiral distribution roller (208), and the two roller bearing seats (209) are respectively fixedly installed in the installation gaps at both ends of the frame (201); The first reduction motor (205) and the second reduction motor (207) are respectively fixedly mounted on the two ends of the frame (201), and are respectively connected to the shaft heads of the first spiral distribution roller (206) and the second spiral distribution roller (208).

7. The reciprocating spiral material distribution device for a sludge hopper according to claim 6, characterized in that: The material distribution trolley (2) further comprises a clamping plate (210) and a sliding bearing (211), wherein the sliding bearing (211) is sleeved on the outside of the central axis of the first spiral material distribution roller (206) and the second spiral material distribution roller (208); The clamping plate (210) is installed in a mounting notch at the end of the frame (201) and is used to fix the sliding bearing (211) in the mounting notch.

8. The reciprocating spiral material distribution device for a sludge hopper according to claim 2, characterized in that: The frame (201) is an I-beam structure, and the first spiral distribution roller (206) and the second spiral distribution roller (208) are respectively installed on both sides of the vertical plate of the I-beam structure; Nylon lining plates (212) are installed between the two sides of the vertical plate of the I-beam structure and the first spiral material distribution roller (206) and the second spiral material distribution roller (208).

9. The reciprocating spiral material distribution device for a sludge hopper according to claim 1, characterized in that: The channel steel track (3) and the base frame (101) of the reciprocating drive device (1) are supported and welded on the sludge hopper (6), and the lower edge of the frame (201) of the material distribution trolley (2) is flush with the upper edge of the sludge hopper (6).

10. The reciprocating spiral material distribution device for a sludge hopper according to claim 1, characterized in that: The control box (5) is provided with a frequency converter and a PLC, and a proximity switch (4) is installed on the edge of the sludge hopper (6) at a preset stop position, and the proximity switch (4) is connected to the control box (5) for signal transmission.

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