Sludge storage and conveying integrated device based on single-cylinder pump

Abstract

The utility model discloses a sludge storage and conveying integrated device based on single cylinder pump belongs to sludge conveying device technical field. A sludge storage and conveying integrated device based on single cylinder pump, including hydraulic cylinder, two -way piston pump, sludge storage hopper, the telescopic end sliding connection of hydraulic cylinder is in two -way piston pump, the sludge storage hopper is linked with hydraulic cylinder, still include: feed hopper, fixedly connected on the sludge storage hopper, the opening is set up to the feed hopper side, the utility model discloses the setting of filter screen can filter the sludge that enters the sludge storage hopper, reduce the entry of large -sized impurity, reduce the influence of large impurity to two -way auger etc. component, effectively increased the service life of device, and filter screen can select use according to demand, when appearing upper filter screen impurity too much, influence sludge through time, can temporarily remove the filter screen of upper, adopt the filter screen of temporarily using of below.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge conveying devices, and in particular to an integrated sludge storage and conveying device based on a single-cylinder pump. Background Technology

[0002] After mechanical dewatering, the sludge from wastewater treatment in petrochemical enterprises typically has an oil content of around 80% and is usually in a solid or semi-fluid state. This type of oily sludge is a major hazardous waste in the petroleum and petrochemical industry, and a conveying device is needed to transport the sludge.

[0003] Existing patents, such as patent application number CN201310551941.X entitled "Method and Apparatus for Continuous Conveying of Oily Sludge with a Single-Cylinder Bidirectional Piston Pump," disclose a method and apparatus for continuous conveying of oily sludge with a single-cylinder bidirectional piston pump, belonging to the field of energy and environmental protection technology. Solid and semi-solid oily sludge is a pseudoplastic fluid, which exhibits Newtonian fluid properties under the action of a double helix, forming a certain pressure before entering the piston pump to provide continuous material for piston conveying. During the reciprocating motion of the piston, the flow of oily sludge towards the outlet is controlled by the switching of the hydraulic connecting pipe; the outlet pressure can reach up to 20 MPa. The conveying volume of oily sludge is calculated by the piston stroke and the diameter of the piston cylinder. The advantage of this invention is that it achieves continuous high-pressure conveying of oily sludge in a relatively small device.

[0004] When the above-mentioned device is in use, there are some large particles of impurities in the sludge. These impurities are likely to come into contact with the screw conveyor and other devices in the conveying device during transportation, which will cause wear and affect the service life of the device, thus having certain shortcomings.

[0005] Therefore, an integrated sludge storage and transportation device based on a single-cylinder pump is provided to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this invention is to solve the problems mentioned in the background art and to propose an integrated sludge storage and transportation device based on a single-cylinder pump.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An integrated sludge storage and conveying device based on a single-cylinder pump includes a hydraulic cylinder, a bidirectional piston pump, and a sludge storage hopper. The telescopic end of the hydraulic cylinder is slidably connected inside the bidirectional piston pump, and the sludge storage hopper is connected to the hydraulic cylinder. The device also includes:

[0009] A feed hopper is fixedly connected to the sludge storage hopper, and an opening is provided on the side of the feed hopper;

[0010] Two sets of top blocks are fixedly connected at equal intervals inside the feed hopper, with the top blocks located below the opening;

[0011] Two sets of filters are slidably connected inside the opening, and the filters are attached to the upper surface of the top block;

[0012] A limiting hole is provided on the filter screen;

[0013] A limiting bolt is connected to the feed hopper. The limiting bolt matches the limiting hole. The limiting bolt can restrict the position of the filter screen, thereby selecting one set of filter screens to filter the sludge.

[0014] Preferably, the top block is inclined, and the opening is located above the high end of the top block, and a baffle is fixedly connected to the end of the filter screen near the limiting hole.

[0015] Preferably, an installation block is fixedly connected to the feed hopper, and the limiting bolt is slidably connected inside the installation block.

[0016] Preferably, a motor is fixedly connected to the sludge storage hopper, and a bidirectional auger is rotatably connected inside the sludge storage hopper, with the output end of the motor fixedly connected to the bidirectional auger.

[0017] Preferably, the bidirectional piston pump is equipped with a first connecting pipe, a second connecting pipe, a third connecting pipe, and a fourth connecting pipe, and each of the first connecting pipe, the second connecting pipe, the third connecting pipe, and the fourth connecting pipe is equipped with a solenoid valve.

[0018] Preferably, a push plate is slidably connected inside the bidirectional piston pump, and the push plate is fixedly connected to the telescopic end of the hydraulic cylinder.

[0019] Compared with the prior art, this utility model provides an integrated sludge storage and transportation device based on a single-cylinder pump, which has the following beneficial effects:

[0020] This invention, through the setting of a filter screen, can filter the sludge entering the sludge storage hopper, reduce the entry of large particles of impurities, reduce the impact of large impurities on components such as the bidirectional auger, effectively increase the service life of the device, and the filter screen can be selected and used as needed. When there are too many impurities on the upper filter screen and it affects the passage of sludge, the upper filter screen can be temporarily removed and the lower filter screen can be used temporarily. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an integrated sludge storage and transportation device based on a single-cylinder pump proposed in this utility model.

[0022] Figure 2 This utility model proposes an integrated sludge storage and transportation device based on a single-cylinder pump. Figure 1 A schematic diagram of the structure of part A;

[0023] Figure 3 This is a cross-sectional structural schematic diagram of an integrated sludge storage and transportation device based on a single-cylinder pump proposed in this utility model.

[0024] Figure 4 This utility model proposes an integrated sludge storage and transportation device based on a single-cylinder pump. Figure 3 A schematic diagram of the structure of part B.

[0025] In the diagram: 1. Hydraulic cylinder; 101. Push plate; 2. Bidirectional piston pump; 201. First connecting pipe; 202. Second connecting pipe; 203. Third connecting pipe; 204. Fourth connecting pipe; 3. Sludge storage hopper; 401. Motor; 402. Bidirectional auger; 5. Feed hopper; 501. Top block; 502. Mounting block; 503. Limit bolt; 6. Filter screen; 601. Limit hole; 7. Baffle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example:

[0028] Reference Figure 1-4An integrated sludge storage and conveying device based on a single-cylinder pump includes a hydraulic cylinder 1, a bidirectional piston pump 2, and a sludge storage hopper 3. The telescopic end of the hydraulic cylinder 1 is slidably connected inside the bidirectional piston pump 2, and the sludge storage hopper 3 is connected to the hydraulic cylinder 1. The device also includes: a feed hopper 5, fixedly connected to the sludge storage hopper 3, with an opening on its side; two sets of top blocks 501, equidistantly fixedly connected inside the feed hopper 5, with the top blocks 501 located below the opening; two sets of filter screens 6, both slidably connected inside the opening, with the filter screens 6 attached to the upper surface of the top blocks 501; a limiting hole 601, provided on the filter screens 6; and a limiting bolt 503, connected to the feed hopper 5, matching the limiting hole 601. The limiting bolt 503 restricts the position of the filter screens 6, thereby selecting one set of filter screens 6 to filter the sludge. 01 is inclined and the opening is located above the high end of the top block 501. A baffle 7 is fixedly connected to the end of the filter screen 6 near the limiting hole 601. An installation block 502 is fixedly connected to the feed hopper 5. A limiting bolt 503 is slidably connected in the installation block 502. A motor 401 is fixedly connected to the sludge storage hopper 3. A bidirectional auger 402 is rotatably connected in the sludge storage hopper 3. The output end of the motor 401 is fixedly connected to the bidirectional auger 402. A first connecting pipe 201, a second connecting pipe 202, a third connecting pipe 203, and a fourth connecting pipe 204 are installed on the bidirectional piston pump 2. Solenoid valves are installed in the first connecting pipe 201, the second connecting pipe 202, the third connecting pipe 203, and the fourth connecting pipe 204. A push plate 101 is slidably connected in the bidirectional piston pump 2. The push plate 101 is fixedly connected to the telescopic end of the hydraulic cylinder 1.

[0029] When using this device, the operation method is the same as that of the existing device. The sludge discharge pipe is connected to the feed hopper 5. At this time, the sludge will be filtered through the filter screen 6. By default, both sets of filter screens 6 are in normal use, and the filter holes of the two sets of filter screens 6 are the same size, filtering impurities in the sludge.

[0030] The filtered sludge will then enter the sludge storage hopper 3. If the motor 401 is not started at this time, a small amount of sludge can be temporarily stored in the sludge storage hopper 3. If the motor 401 is started at this time, the sludge can be transported by the bidirectional auger 402 to the first connecting pipe 201 and the second connecting pipe 202. At this time, the operation is the same as the existing device. By starting the hydraulic cylinder 1, the push plate 101 moves back and forth continuously, generating negative pressure in the bidirectional piston pump 2. The generated negative pressure can suck the sludge out of the sludge storage hopper 3, and then discharge the sludge by moving the push plate 101.

[0031] Assuming the push plate 101 starts at the left end of the hydraulic cylinder 1, the first connecting pipe 201 and the fourth connecting pipe 204 are open, while the second connecting pipe 202 and the third connecting pipe 203 are closed. As the push plate 101 moves to the right, a certain vacuum is formed on the left side. Combined with the pressure of the bidirectional auger 402, oily sludge is sucked in, and air is discharged from the fourth connecting pipe 204 on the right. When the push plate 101 reaches the right end, it stops. At this time, the first connecting pipe 201 and the fourth connecting pipe 204 are closed, while the second connecting pipe 202 and the third connecting pipe 203 are opened (the opening and closing of the solenoid valve takes about 1 second). After the valve switching is completed, the push plate 101 moves to the left, and air and sludge are discharged from the third connecting pipe 203. After the push plate 101 reaches the left end, the previous process is repeated, which can realize the continuous, closed, and high-pressure transportation of oily sludge.

[0032] Then, when filter screen 6 is in use, some impurities will accumulate on the upper filter screen 6. As the impurities accumulate, the sludge becomes increasingly difficult to be discharged through filter screen 6. At this time, the staff can pull the upper filter screen 6 and temporarily fix the filter screen 6 with the limit bolt 503. At this time, the lower filter screen 6 will be used for temporary filtration.

[0033] The baffle 7 can temporarily block the impurities remaining on the filter screen 6. After the filter screen 6 is fixed, there is a certain gap between the baffle 7 and the inner wall of the feed hopper 5. These gaps can accommodate impurities, preventing all impurities from passing through the baffle 7 to the filter screen 6 below, thus facilitating the use of the filter screen 6 below.

[0034] This utility model, through the setting of filter screen 6, can filter the sludge entering the sludge storage hopper 3, reduce the entry of large particles of impurities, reduce the impact of large impurities on components such as the bidirectional auger 402, effectively increase the service life of the device, and the filter screen 6 can be selected for use as needed. When there are too many impurities on the upper filter screen 6, which affects the passage of sludge, the upper filter screen 6 can be temporarily removed and the lower filter screen 6 can be used temporarily.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An integrated sludge storage and conveying device based on a single-cylinder pump, comprising a hydraulic cylinder (1), a bidirectional piston pump (2), and a sludge storage hopper (3), wherein the telescopic end of the hydraulic cylinder (1) is slidably connected within the bidirectional piston pump (2), and the sludge storage hopper (3) is connected to the hydraulic cylinder (1), characterized in that, Also includes: A feed hopper (5) is fixedly connected to the sludge storage hopper (3), and an opening is provided on the side of the feed hopper (5); Two sets of top blocks (501) are fixedly connected at equal intervals inside the feed hopper (5), and the top blocks (501) are located below the opening; Two sets of filters (6) are slidably connected inside the opening, and the filters (6) are attached to the upper surface of the top block (501); A limiting hole (601) is provided on the filter screen (6); A limiting bolt (503) is connected to the feed hopper (5). The limiting bolt (503) matches the limiting hole (601). The limiting bolt (503) can limit the position of the filter screen (6) so that one set of filter screens (6) can be selected to filter the sludge.

2. The integrated sludge storage and conveying device based on a single-cylinder pump according to claim 1, characterized in that, The top block (501) is inclined and the opening is located above the high end of the top block (501), and a baffle (7) is fixedly connected to one end of the filter (6) near the limiting hole (601).

3. The integrated sludge storage and conveying device based on a single-cylinder pump according to claim 2, characterized in that, An installation block (502) is fixedly connected to the feed hopper (5), and the limiting bolt (503) is slidably connected inside the installation block (502).

4. The integrated sludge storage and conveying device based on a single-cylinder pump according to claim 1, characterized in that, A motor (401) is fixedly connected to the sludge storage hopper (3), and a bidirectional auger (402) is rotatably connected inside the sludge storage hopper (3). The output end of the motor (401) is fixedly connected to the bidirectional auger (402).

5. The integrated sludge storage and conveying device based on a single-cylinder pump according to claim 1, characterized in that, The bidirectional piston pump (2) is equipped with a first connecting pipe (201), a second connecting pipe (202), a third connecting pipe (203), and a fourth connecting pipe (204), and each of the first connecting pipe (201), the second connecting pipe (202), the third connecting pipe (203), and the fourth connecting pipe (204) is equipped with a solenoid valve.

6. The integrated sludge storage and conveying device based on a single-cylinder pump according to claim 1, characterized in that, The bidirectional piston pump (2) has a push plate (101) slidably connected inside, and the push plate (101) is fixedly connected to the telescopic end of the hydraulic cylinder (1).

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