Sand cleaning assembly

Abstract

The utility model discloses a sand cleaning assembly, which relates to the technical field of sand cleaning equipment and comprises a sand discharging pipe and an adjusting device. The sand discharging pipe comprises an outer pipe and an inner pipe penetrating through the outer pipe, a sand discharging channel is formed between the inner side of the outer pipe and the outer side of the inner pipe, and one end of the inner pipe is externally connected with high-pressure water flow; the adjusting device is used for extending the sand discharging pipe into the tank body or pulling the sand discharging pipe out of the tank body; when the sand removal tank is used, sediments in the tank body are pumped out through the sand removal channel between the outer pipe and the inner pipe, and in order to improve the sand removal efficiency of the tank body, high-pressure water flow is sprayed into the tank body through the inner pipe, so that sand and sludge deposited in the tank body are impacted, the sediments adhered or accumulated in the tank body are dispersed, and the sediments can be conveniently discharged through the sand removal pipe; and the adjusting device can adjust the position of the end part of the sand discharging pipe in the tank body, so that the sand cleaning area is enlarged, and the sand cleaning efficiency and the sand cleaning effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand cleaning equipment, in particular to a sand cleaning component. Background Art

[0002] Due to the complexity of urban organic solid waste and agricultural waste and many uncontrollable factors in the pretreatment process (such as equipment wear, misoperation, etc.), the slurry entering the anaerobic fermentation system after pretreatment contains a certain amount of sand and gravel. The specific content is related to the impurity removal efficiency of the pretreatment system and the total amount of impurities contained in the raw materials.

[0003] Therefore, the accumulation of sediments at the bottom of the tank seriously affects the normal operation of the anaerobic fermentation system of organic waste, and reasonable and effective measures must be taken to minimize the impact. At present, most continuous fermentation biogas projects regularly clean the reactor as a whole to remove the accumulated sand during actual operation, which consumes a lot of manpower and material resources, and requires a lot of time to restart the fermentation system, seriously affecting the normal operation of the project. At present, with the continuous increase in the commissioning time of biogas projects, a large number of anaerobic reactors have experienced varying degrees of sediment accumulation at the bottom of the tank. Therefore, the anaerobic fermentation tanks that have been in operation are equipped with online off-tank continuous sand removal technology to directly remove the sediment at the bottom of the tank during operation, thereby significantly reducing the harm caused by the sediment in the existing anaerobic tanks and extending the tank cleaning cycle.

[0004] The sand cleaning device in the prior art generally includes a sand discharge pipe extending into the anaerobic tank, and then the other end of the sand discharge pipe is passed into the solid-liquid separation device to separate the solid sediment from the liquid, and then the liquid is transported back to the tank body. Although this type of sand cleaning device can extract the sediment in the tank body, due to the lack of external force, some sediment that sticks or accumulates in the tank body cannot be sucked into the sand discharge pipe, resulting in the inability to remove the sediment in time and poor cleaning effect.

[0005] In view of this, a sand cleaning component is urgently needed. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention solves the problem with the following technical structure.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A sand cleaning assembly comprises: a sand discharge pipe and an adjusting device;

[0009] The sand discharge pipe includes an outer pipe and an inner pipe passing through the outer pipe, wherein the inner side of the outer pipe and the outer side of the inner pipe form a sand discharge channel, and one end of the inner pipe is connected to a high-pressure water flow;

[0010] The adjusting device is used to extend the sand discharge pipe into the tank body or to pull it out of the tank body.

[0011] It is further characterized in that

[0012] The suspended end of the sand discharge pipe is provided with a pipe head, and a plurality of impellers are provided in the pipe head.

[0013] A bell mouth is provided on the outer side of the end portion of the pipe head.

[0014] The pipe head is made of steel.

[0015] Part of each impeller is located at the outlet of the inner tube, and the other part is located at the inlet of the sand discharge channel.

[0016] The adjusting device includes a frame, a sliding seat and a driving mechanism. The sliding seat is slidably arranged on the frame, the sand discharge pipe is arranged on the sliding seat, and the driving mechanism is used to drive the sliding seat to slide on the frame.

[0017] The driving mechanism includes a motor and a screw rod. The screw rod is rotatably arranged on the frame. The sliding seat is penetrated by the screw rod. The sliding seat is threadedly connected to the screw rod. The motor is arranged on the frame for driving the screw rod to rotate.

[0018] A plurality of pulleys are provided at the bottom of the frame.

[0019] The driving mechanism further comprises a height adjusting rod, which is arranged on the frame. One end of the height adjusting rod is connected to the sand discharge pipe for adjusting the horizontal height of the sand discharge pipe.

[0020] The frame is provided with a slide rail, and the slide seat is clamped on the slide rail.

[0021] The above structure of the utility model can achieve the following beneficial effects:

[0022] During use, the end of the sand discharge pipe is slowly extended into the anaerobic tank. After the end of the sand discharge pipe reaches the set position, the circulation pump connected to the sand discharge pipe is turned on to extract the sediment in the tank through the sand discharge channel between the outer pipe and the inner pipe. In order to improve the sand cleaning efficiency of the tank, high-pressure water is sprayed into the tank through the inner pipe to impact the sand and silt deposited in the tank, and to disperse the sediment stuck or accumulated in the tank, making it easier for the sand discharge pipe to discharge, thereby improving the sand cleaning effect. In addition, the adjustment device can adjust the position of the end of the sand discharge pipe in the tank to expand the sand cleaning area and improve the sand cleaning efficiency and sand cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of the sand discharge pipe and the regulating device in the utility model;

[0024] Figure 2 It is a cross-sectional schematic diagram of the sand discharge pipe and the pipe head in the utility model.

[0025] In the figure: 1. Adjustment device; 11. Frame; 12. Sliding seat; 13. Motor; 14. Screw; 15. Pulley; 16. Height adjustment rod; 2. Outer tube; 3. Inner tube; 4. Sand discharge channel; 5. Impeller; 6. Bell mouth. DETAILED DESCRIPTION

[0026] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, area, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or apparatuses.

[0028] The following combination Figure 1-Figure 2 And the utility model is described in further detail.

[0029] like Figure 1-2 As shown, a sand cleaning component comprises: a sand discharge pipe and an adjusting device 1; the sand discharge pipe comprises an outer pipe 2 and an inner pipe 3 which is inserted into the outer pipe 2, a sand discharge channel 4 is formed between the inner side of the outer pipe 2 and the outer side of the inner pipe 3, and one end of the inner pipe 3 is externally connected to a high-pressure water flow; the adjusting device 1 is used to extend the sand discharge pipe into the tank body or to pull it out of the tank body. Thus, when in use, the end of the sand discharge pipe is slowly extended into the anaerobic tank (or the bottom of the pool), and after the end of the sand discharge pipe reaches the set position, the circulating pump connected to the sand discharge pipe is turned on, and the sand is discharged through the outer pipe 2 and the inner pipe 3. The sand discharge channel 4 between the two sides extracts the sediment in the tank body to the solid-liquid separation device, and the fixed sediment of the extracted sediment is separated from the slurry by the solid-liquid separation device. In order to improve the sand cleaning efficiency of the tank body, a high-pressure water flow is sprayed into the tank body through the inner tube 3 to impact the sand and silt deposited in the tank body, and to disperse the sediment sticking or accumulated in the tank body, so as to facilitate the discharge of the sand discharge pipe and improve the sand cleaning effect. In addition, the adjustment device 1 can adjust the position of the end of the sand discharge pipe in the tank body to expand the sand cleaning area and improve the sand cleaning efficiency and sand cleaning effect.

[0030] like Figure 1 and 2As shown, the suspended end of the sand discharge pipe is provided with a pipe head, and several impellers 5 are provided in the pipe head, wherein the optimal arrangement of each impeller 5 is as follows: part of each impeller 5 is located at the outlet of the inner pipe 3, and the other part is located at the inlet of the sand discharge channel 4. In this way, high-pressure water flow is injected into the tank body through the inner pipe 3, and the water flow drives the impeller 5 to rotate. After the high-pressure water force passes through the impeller 5, there is still enough scouring force to impact the sand and silt deposited in the tank body. At the same time, the impeller 5 brings the slurry sand (slurry with sand and silt) into the sand discharge channel 4 and is extracted out of the tank, and a bell mouth 6 can be provided on the outside of the end of the pipe head to expand the area of the mortar inlet.

[0031] A further optimization is that the pipe head is made of steel, so that the pipe head has a certain weight, which is conducive to positioning.

[0032] like Figure 1 As shown, in order to realize the movement of the sand discharge pipe, the adjusting device 1 includes a frame 11, a sliding seat 12 and a driving mechanism. The sliding seat 12 is slidably arranged on the frame 11 (a slide rail is provided on the frame 11, and the sliding seat 12 is clamped on the slide rail to guide and limit the movement of the sliding seat 12). The sand discharge pipe is arranged on the sliding seat 12, and the driving mechanism is used to drive the sliding seat 12 to slide on the frame 11, wherein the driving mechanism specifically includes a motor 13 and a screw rod 14, the screw rod 14 is rotatably arranged on the frame 11, the sliding seat 12 is penetrated by the screw rod 14, and the sliding seat 12 is threadedly connected to the screw rod 14, and the motor 13 is arranged on the frame 11 for driving the screw rod 14 to rotate. In this way, the screw rod 14 is driven by the motor 13 to rotate, so that the sliding seat 12 is translated on the frame 11 (the sliding seat 12 is close to or away from the tank body), so that the sand discharge pipe is deepened into the tank body or withdrawn from the tank body, thereby achieving the purpose of adjusting the end position of the sand discharge pipe.

[0033] Further optimization is, Figure 1 As shown, in order to improve the convenience of using the device, a plurality of pulleys 15 are provided at the bottom of the frame 11, so that the device can be moved conveniently.

[0034] Further optimization is, Figure 1 As shown, the driving mechanism also includes a height adjustment rod 16, which is arranged on the frame 11. One end of the height adjustment rod 16 can be connected to the sand discharge pipe, and the other end can be set on the frame 11 or the sliding seat 12. By adjusting the height of the height adjustment rod 16 or setting the height adjustment rod 16 as a telescopic rod, the horizontal height of the sand discharge pipe can be adjusted to adapt to tank interfaces of different heights.

[0035] In summary, when in use, the end of the sand discharge pipe is slowly extended into the anaerobic tank. After the end of the sand discharge pipe reaches the set position, the circulation pump connected to the sand discharge pipe is turned on, and the sediment in the tank body is extracted through the sand discharge channel 4 between the outer tube 2 and the inner tube 3. In order to improve the sand cleaning efficiency of the tank body, a high-pressure water flow is sprayed into the tank body through the inner tube 3 to impact the sand and silt deposited in the tank body, and to disperse the sediment stuck or accumulated in the tank body, so as to facilitate the discharge of the sand discharge pipe and improve the sand cleaning effect. In addition, the adjustment device 1 can adjust the position of the end of the sand discharge pipe in the tank body to expand the sand cleaning area and improve the sand cleaning efficiency and sand cleaning effect.

[0036] The above are only preferred embodiments of the present invention, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations directly derived or imagined by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the scope of protection of the present invention.

Claims

1. A sand cleaning component, characterized in that: include: Sand discharge pipe and regulating device (1); The sand discharge pipe comprises an outer pipe (2) and an inner pipe (3) passing through the outer pipe (2); a sand discharge channel (4) is formed between the inner side of the outer pipe (2) and the outer side of the inner pipe (3); one end of the inner pipe (3) is externally connected to a high-pressure water flow; The regulating device (1) is used to extend the sand discharge pipe into the tank or to pull it out of the tank; The suspended end of the sand discharge pipe is provided with a pipe head, and a plurality of impellers (5) are provided in the pipe head.

2. A sand cleaning assembly according to claim 1, characterized in that: A bell mouth (6) is provided on the outer side of the end of the pipe head.

3. The sand cleaning assembly according to claim 1, characterized in that: The pipe head is made of steel.

4. The sand cleaning assembly according to claim 1, characterized in that: Part of each impeller (5) is located at the outlet of the inner tube (3), and the other part is located at the inlet of the sand discharge channel (4).

5. The sand cleaning assembly according to claim 1, characterized in that: The adjusting device (1) comprises a frame (11), a sliding seat (12) and a driving mechanism, wherein the sliding seat (12) is slidably arranged on the frame (11), the sand discharge pipe is arranged on the sliding seat (12), and the driving mechanism is used to drive the sliding seat (12) to slide on the frame (11).

6. A sand cleaning assembly according to claim 5, characterized in that: The driving mechanism comprises a motor (13) and a screw rod (14); the screw rod (14) is rotatably arranged on the frame (11); the sliding seat (12) is passed through the screw rod (14); the sliding seat (12) is threadedly connected to the screw rod (14); and the motor (13) is arranged on the frame (11) and is used to drive the screw rod (14) to rotate.

7. The sand cleaning assembly according to claim 5, characterized in that: A plurality of pulleys (15) are provided at the bottom of the frame (11).

8. The sand cleaning assembly according to claim 6, characterized in that: The driving mechanism further comprises a height adjustment rod (16), which is arranged on the frame (11), and one end of the height adjustment rod (16) is connected to the sand discharge pipe for adjusting the horizontal height of the sand discharge pipe.

9. The sand cleaning assembly according to claim 5, characterized in that: A slide rail is provided on the frame (11), and the slide seat (12) is clamped on the slide rail.

Images