Miniature air cannon for grid slag sand drying equipment of sand-water separator

Abstract

The utility model discloses a miniature air cannon for grid slag sand drying equipment of a sand-water separator. The miniature air cannon comprises a fixed frame, an air storage tank arranged on the fixed frame and a plurality of sections of connecting pipes connected with the air storage tank, the air storage tank is connected to the bottom of the grid slag sand drying equipment of the sand-water separator through a plurality of sections of connecting pipes; the air storage tank is provided with an electromagnetic valve for starting the release of compressed air; the multi-section connecting pipe comprises a flange pipe connected with the bottom of the grid slag sand drying equipment of the sand-water separator, a bent pipe connected with the flange pipe and a compressed air pipe connected with the bent pipe; the flange pipe is connected with an air inlet in the bottom of the grid slag sand drying equipment of the sand-water separator, and the length direction of the flange pipe is parallel to the installation plane of the fixing frame. According to the utility model, the kinetic energy of compressed air is utilized to perform high-speed airflow bombardment on the grid slag sand, so that the sand grains are heated, uniformly mixed and quickly dried, and the problem that the grid slag sand is hardened in drying equipment is fundamentally solved, so that the subsequent vacuum conveying is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and more specifically to a micro air cannon for sand-water separator screen slag sand drying equipment. Background Art

[0002] In the daily operation of sewage treatment plants, sand-water separators and screens are generally installed in the pretreatment stage to remove various floating and suspended objects in the sewage. If not handled properly, it will cause trouble and impact on the subsequent treatment process.

[0003] The screenings sand produced by the sand-water separator is generally transported by a belt conveyor or a screw conveyor to the press and then sent to a trash can. It is then collected by manual pushing and transported out for treatment. Since the screenings sand has a strong odor and contains oily substances, this method will cause a poor processing workshop environment and is time-consuming and labor-intensive.

[0004] In order to ensure the environment of the screening sand collection and transportation workshop and solve the time-consuming and labor-intensive problem of manual transportation, the pretreatment area of ​​the sewage plant was deeply analyzed and studied. Finally, the original open sewage pretreatment area on the ground was transferred to the underground sealed space for treatment, and the vacuum adsorption principle was used to transport the screening sand and other garbage from various places to the ground layer through pipeline sealing. The above-ground part can be transformed into a garden-style landscape, and the transformation of the pretreatment ultra-clean space of the sewage plant was completed on this basis. However, since the screening sand in the sand-water separator has a strong odor and contains oily substances, it needs to be dried. However, during the drying process, it will form large blocks due to its own humidity, blocking the subsequent transportation system. Therefore, during the drying process of the screening sand, it is necessary to stir it to make it evenly heated and dry quickly, but due to the limitations of the site and drying equipment, it is impossible to install a stirring device. Therefore, it is necessary to transform the sand-water separator screening sand drying equipment to improve the drying efficiency of the screening sand and solve the problem of the screening sand being hardened in the drying equipment. Utility Model Content

[0005] In view of the above-mentioned defects existing in the prior art, the purpose of the utility model is to provide a miniature air cannon for a sand-water separator screen sand drying equipment, which utilizes the kinetic energy of compressed air to bombard the screen sand with high-speed airflow, so that the sand particles are heated, mixed and dried quickly, fundamentally solving the problem of screen sand compaction in the drying equipment, and facilitating subsequent vacuum transportation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a micro air cannon for a sand-water separator screen sand drying device, comprising a fixing frame, an air storage tank arranged on the fixing frame and a multi-section connecting pipe connected to the air storage tank; the air storage tank is connected to the bottom of the sand-water separator screen sand drying device through the multi-section connecting pipe, and the air storage tank is provided with a solenoid valve for starting compressed air release; the multi-section connecting pipe comprises a flange pipe connected to the bottom of the sand-water separator screen sand drying device, a bent pipe connected to the flange pipe and a compressed air pipe connected to the bent pipe; the flange pipe is connected to the air inlet at the bottom of the sand-water separator screen sand drying device, and the length direction of the flange pipe is parallel to the installation plane of the fixing frame.

[0008] Preferably, the gas storage tank is equipped with an exhaust pipe and a safety valve.

[0009] Preferably, the multiple connecting pipes are all made of stainless steel.

[0010] Preferably, the bent pipe is connected to the flange pipe and the compressed air pipe respectively through a 90° elbow.

[0011] Preferably, the connection between the multi-section connecting pipe and the air inlet and the air storage tank at the bottom of the sand-water separator screen sand drying equipment is sealed with a sealing ring.

[0012] Preferably, the connections between the flange pipe, the elbow pipe and the compressed air pipe of the multi-section connecting pipe are sealed with sealing tape.

[0013] The micro air cannon for sand-water separator screen sand drying equipment provided by the utility model has the following advantages:

[0014] 1. The micro air cannon used in the sand-water separator screen sand drying equipment of the utility model utilizes compressed air to bombard the sand-water separator screen sand with high-speed airflow, which can not only control the occurrence of the hot melt effect, but also improve the drying efficiency of the sand particles, and solve the problem that the screen sand will be hardened on the inner wall of the drying device;

[0015] 2. The sand-water separator screen sand drying equipment of the utility model uses a micro air cannon and compressed air to replace the traditional agitator, so that the sand particles can be heated evenly and dried quickly, and the equipment volume can be reduced, preparing for future service productization;

[0016] 3. The micro air cannon used in the sand-water separator screen sand drying equipment of the utility model fundamentally solves the problem of screen sand stirring and uniform heating in the sand-water separator drying equipment, which is beneficial to the vacuum conveying process to ensure the stable operation of the equipment;

[0017] 4. The micro air cannon used in the sand-water separator screen sand drying equipment of the utility model uses a multi-section connecting pipe to adjust the injection angle of the compressed air to make the impact uniform, while preventing the screen sand from falling into the pipe and preventing the connecting pipe from being blocked;

[0018] 5. The micro air cannon used in the sand-water separator screen sand drying equipment of the utility model can reduce maintenance costs, reduce downtime and cleaning time, improve efficiency, and enhance automated operation capabilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a micro air cannon for a sand-water separator screen slag sand drying device of the utility model;

[0020] Among them, 10. Sand-water separator screen sand drying equipment; 11. Air inlet; 20. Air storage tank; 21. Fixed frame; 22. Flange pipe; 23. Bend pipe; 24. Compressed air pipe; 25. Exhaust pipe; 26. Safety valve. DETAILED DESCRIPTION

[0021] In order to better understand the above technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] The utility model is one of the important technologies in the reconstruction scheme of the super-clean space of the sewage treatment plant. In the drying process of the screen sand, the kinetic energy of the compressed air is used to bombard the screen sand with high-speed airflow, which plays the role of a stirrer, thereby improving the drying efficiency of the screen sand and solving the problem that the screen sand will be hardened on the inner wall of the drying device.

[0023] Combination Figure 1 As shown, the micro air cannon for the sand-water separator screen sand drying equipment of the utility model comprises a fixing frame 21, a gas storage tank 20 arranged on the fixing frame 21, and a multi-section connecting pipe connected to the gas storage tank 20. The gas storage tank 20 is mainly used for compressing and storing gas, and releasing compressed gas when needed; the gas storage tank 20 is connected to the bottom of the sand-water separator screen sand drying equipment 10 through a multi-section connecting pipe, and the gas storage tank 20 is equipped with a solenoid valve for starting the compressed air release. When the compressed air is needed, it is released through the solenoid valve, generally intermittently, such as releasing compressed air for 2 to 3 seconds every half an hour. The multi-section connecting pipe includes a flange pipe 22 connected to the bottom of the sand-water separator screen sand drying equipment 10, a bend pipe 23 connected to the flange pipe 22, and a compressed air pipe 24 connected to the bend pipe 23. The multi-section connecting pipe can be used to adjust the angle of the compressed air to avoid uneven impact, resulting in the compaction of the screen sand, etc. The flange pipe 22 is connected to the air inlet 11 at the bottom 10 of the sand-water separator screen sand drying equipment. Since the air inlet 11 at the bottom of the sand-water separator screen sand drying equipment 10 is generally arranged obliquely upward, the air flow of the pipeline impacts the inside of the drying equipment from bottom to top. Therefore, during installation, the length direction of the flange pipe 22 is parallel to the installation plane of the fixed frame 21 to prevent the screen sand from falling into the multi-section connecting pipe and being unable to be discharged, causing the pipeline to be blocked.

[0024] Combination Figure 1 As shown, considering safety, the gas tank 20 is equipped with an exhaust pipe 25 and a safety valve 26. When the pressure in the gas tank 20 is too high, the safety valve 26 automatically opens to release part of the gas to keep the pressure inside the gas tank 20 within a safe range to avoid overpressure or explosion accidents.

[0025] In a specific embodiment, the multiple connecting pipes are all made of stainless steel.

[0026] Combination Figure 1 As shown, the elbow 23 is connected to the flange pipe 22 and the compressed air pipe 24 via 90° elbows respectively.

[0027] In a specific embodiment, in order to ensure the sealing performance of the connection between the micro air cannon and the sand-water separator screen sand drying equipment 10, the connection between the flange pipe 22, the elbow 23, and the compressed air pipe 24 of the multi-section connecting pipe is sealed with a sealing tape. The connection between the multi-section connecting pipe and the air inlet 11 at the bottom of the sand-water separator screen sand drying equipment and the air storage tank 20 is sealed with a sealing ring.

[0028] To sum up, the micro air cannon for sand-water separator screen sand drying equipment of the utility model, as one of the important technologies of sand-water separator screen sand drying equipment, uses the kinetic energy of compressed air to bombard the screen sand with high-speed airflow, replacing the traditional agitator, and is not limited by the on-site space and the volume of the drying equipment. It can heat, mix and dry the sand particles quickly, fundamentally solving the problem of screen sand compaction in the drying equipment, and providing technical guarantee for subsequent vacuum pipeline transportation.

[0029] As one of the important technologies in the reconstruction scheme of the pre-treatment ultra-clean space of the sewage plant, the utility model improves the reconstruction scheme of the pre-treatment ultra-clean space of the sewage plant and fundamentally solves the problem of the compaction of the screen sand in the drying equipment to facilitate the subsequent vacuum transportation.

[0030] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A micro air cannon for sand-water separator screen sand drying equipment, characterized in that: It includes a fixing frame, an air tank arranged on the fixing frame and a multi-section connecting pipe connected to the air tank; the air tank is connected to the bottom of the sand-water separator screen sand drying equipment through the multi-section connecting pipe, and the air tank is provided with a solenoid valve for starting the compressed air release; the multi-section connecting pipe includes a flange pipe connected to the bottom of the sand-water separator screen sand drying equipment, a bend connected to the flange pipe and a compressed air pipe connected to the bend; the flange pipe is connected to the air inlet at the bottom of the sand-water separator screen sand drying equipment, and the length direction of the flange pipe is parallel to the installation plane of the fixing frame.

2. The micro air cannon for sand-water separator screen sand drying equipment according to claim 1 is characterized in that: The gas storage tank is equipped with an exhaust pipe and a safety valve.

3. The micro air cannon for sand-water separator screen sand drying equipment according to claim 1 is characterized in that: The multi-section connecting pipes are all made of stainless steel.

4. The micro air cannon for sand-water separator screen sand drying equipment according to claim 1 is characterized in that: The bent pipe is connected to the flange pipe and the compressed air pipe through a 90° elbow respectively.

5. The micro air cannon for sand-water separator screen sand drying equipment according to claim 1 is characterized in that: The connection between the multi-section connecting pipe and the air inlet and the air storage tank at the bottom of the sand-water separator screen sand drying equipment is sealed by a sealing ring.

6. The micro air cannon for sand-water separator screen sand drying equipment according to claim 1, characterized in that: The joints between the flange pipe, the elbow pipe and the compressed air pipe of the multi-section connecting pipe are sealed with sealing tape.

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