A viscous sludge anti-return device

Abstract

This utility model discloses a device for preventing backflow of viscous sludge, comprising a support module, a drive module, a scraping module, and a purging module. The support module includes a first side frame, a second side frame, a top plate, and a baffle plate, with a discharge port between the bottom of the first side frame and the bottom of the second side frame. The drive module includes a motor, a first conveying chain, a drive shaft, a first bearing seat, a second bearing seat, a sprocket, and a second conveying chain. The scraping module includes several scraper blades. The purging module includes a main air supply pipe and a first, second, and third branch air supply pipe connected to the main air supply pipe. This utility model discloses a device for preventing backflow of viscous sludge, which, through modular design, integrates support, drive, scraping, and purging functions to achieve stable conveying and automatic unclogging of viscous sludge.

Description

Technical Field

[0001] This utility model belongs to the field of sludge treatment technology, specifically relating to a device for preventing the backflow of viscous sludge. Background Technology

[0002] In the sludge treatment industry, scraper conveyors (referred to as "scraper conveyors") are commonly used sludge conveying equipment. They use scrapers and chains to transport sludge from the feed end to the discharge end (feed port). However, when conveying sticky sludge, due to the strong adhesion of the sludge itself, it is very easy to stick to the scraper surface and the gaps in the chain.

[0003] As the conveying process continues, the adhered sludge gradually accumulates, eventually forming a deposit at the discharge port of the scraper conveyor head. This problem triggers a series of chain reactions: First, the accumulated sludge increases the operating load of the scraper conveyor, leading to unstable feed rates and affecting the continuity of the entire sludge treatment process; second, the accumulated sludge requires regular manual unblocking, which not only increases the labor intensity of operators but also poses certain safety hazards; third, the accumulated sticky sludge continuously releases foul odors, spreading into the working environment, adversely affecting the health of operators, and also damaging the air quality of the working environment.

[0004] Currently, existing technologies for preventing backflow in the conveying of sticky sludge are relatively simple, relying mainly on manual periodic cleaning or simple unidirectional blowing structures. The cleaning effect is limited and cannot fundamentally solve the problems of sludge adhesion, backflow, and accumulation. Therefore, there is an urgent need for a backflow prevention device that can automatically and efficiently clean sludge adhering to the scraper. Utility Model Content

[0005] The main purpose of this utility model is to provide a device for preventing backflow of viscous sludge. This device integrates support, drive, scraping and blowing functions through modular design to achieve stable conveying and automatic unblocking of viscous sludge.

[0006] To achieve the above objectives, this utility model provides a device for preventing backflow of viscous sludge, comprising a support module, a drive module, a scraping module, and a purging module, wherein:

[0007] The support module includes a first side frame, a second side frame, a top plate, and a baffle. The top plate is fixedly installed on the top of the first side frame, the top of the second side frame, and the top of the baffle. A discharge port is provided between the bottom of the first side frame and the bottom of the second side frame.

[0008] The drive module includes a motor, a first transmission chain, a drive shaft, a first bearing housing, a second bearing housing, a sprocket, and a second transmission chain. The motor is fixedly mounted on the top of the top plate. The first bearing housing is fixedly mounted on the first side frame, and the second bearing housing is fixedly mounted on the second side frame. One end of the drive shaft is mounted on the first bearing housing, and the other end of the drive shaft passes through the second bearing housing and is connected to the drive end of the motor via the first transmission chain. The sprocket is sleeved on the drive shaft and located between the first bearing housing and the second bearing housing. The second transmission chain is mounted on the sprocket (through the motor and the first transmission chain, the drive shaft rotates between the first and second bearing housings, thereby the sprocket drives the second transmission chain to rotate).

[0009] The scraping module includes several scrapers, each of which is fixedly mounted to the second conveyor chain via a first scraper mounting component and a second scraper mounting component. The scrapers are used (driven by the second conveyor chain) to push the sticky sludge to the discharge port.

[0010] The purging module includes a main air supply pipe and a first air supply branch pipe, a second air supply branch pipe, and a third air supply branch pipe connected to the main air supply pipe. The first air supply branch pipe is installed on the baffle and is provided with a plurality of first nozzles. The first nozzles are lateral (i.e., the baffle is oriented towards the sprocket) toward the second conveyor chain. The second air supply branch pipe is installed on the top plate and is provided with a plurality of second nozzles. The second nozzles are oriented from top to bottom toward the side of the sprocket near the baffle. The third air supply branch pipe is installed on the top plate and is provided with a plurality of third nozzles. The third nozzles are oriented from top to bottom toward the side of the sprocket away from the baffle.

[0011] As a further preferred embodiment of the above technical solution, the main gas pipeline is connected to compressed air.

[0012] As a further preferred embodiment of the above technical solution, the baffle is provided with an observation window.

[0013] As a further preferred embodiment of the above technical solution, the first conveyor chain is provided with a protective cover.

[0014] As a further preferred technical solution to the above technical solution, the compressed air blown out by the nozzle is used to peel the sticky sludge off the scraper and send it to the discharge port.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. Solve the problem of sludge accumulation: Through the multi-angle compressed air purging design of "side + vertical + oblique", the sludge on the scraper surface is cleaned in all directions without dead corners, which fundamentally avoids the sludge return and accumulation at the feed port of the machine head and ensures the continuity of sludge transportation.

[0017] 2. Reduce labor costs: No manual intervention is required for clearing blockages, significantly reducing the labor intensity of operators and the frequency of manual clearing.

[0018] 3. Improved working environment: The solution to the sludge accumulation problem effectively reduces the source of odor release. At the same time, the observation window facilitates real-time monitoring of the internal situation, eliminating the need to frequently open the outer casing of the device, further reducing odor diffusion and improving the quality of the working environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of this utility model.

[0021] Figure 3 This is a structural schematic diagram of the present invention (the first and second side frames are hidden).

[0022] Figure 4 This is a schematic diagram of the structure of this utility model (the first side frame, the second side frame, and the first bearing seat are hidden).

[0023] Figure 5 This is a schematic diagram of the structure of this utility model.

[0024] The reference numerals in the attached drawings include: 10, support module; 11, first side frame; 12, second side frame; 13, top plate; 14, baffle; 141, observation window; 15, discharge port; 20, drive module; 21, motor; 22, first conveyor chain; 221, protective cover; 23, drive shaft; 24, first bearing seat; 25, second bearing seat; 26, sprocket; 27, second conveyor chain; 30, scraper module; 31, scraper blade; 32, first scraper blade mounting component; 32, second scraper blade; 40, purging module; 41, main air supply pipe; 42, first branch air supply pipe; 421, first nozzle; 43, second branch air supply pipe; 431, second nozzle; 44, third branch air supply pipe; 441, third nozzle. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0026] This utility model discloses a device for preventing the backflow of viscous sludge. The specific embodiments of the utility model are further described below with reference to preferred embodiments.

[0027] In the embodiments of this utility model, those skilled in the art will note that the viscous sludge and the like involved in this utility model can be considered as prior art.

[0028] Preferred embodiment.

[0029] like Figure 1-5 As shown, this utility model discloses a device for preventing the backflow of viscous sludge, including a support module 10, a drive module 20, a scraping module 30, and a blowing module 40, wherein:

[0030] The support module 10 includes a first side frame 11, a second side frame 12, a top plate 13, and a baffle 14. The top plate 13 is fixedly installed on the top of the first side frame 11, the top of the second side frame 12, and the top of the baffle 13. A discharge port 15 is provided between the bottom of the first side frame 11 and the bottom of the second side frame 12.

[0031] The drive module 20 includes a motor 21, a first transmission chain 22, a drive shaft 23, a first bearing seat 24, a second bearing seat 25, a sprocket 26, and a second transmission chain 27. The motor 21 is fixedly installed on the top of the top plate 13. The first bearing seat 24 is fixedly installed on the first side frame 11, and the second bearing seat 25 is fixedly installed on the second side frame 12. One end of the drive shaft 23 is installed on the first bearing seat 24, and the other end of the drive shaft 23 passes through the second bearing seat 25 and is connected to the drive end of the motor 21 through the first transmission chain 22. The sprocket 26 is sleeved on the drive shaft 23 and is located between the first bearing seat 24 and the second bearing seat 25. The second transmission chain 27 is installed on the sprocket 26 (through the motor and the first transmission chain, the drive shaft is driven to rotate between the first and second bearing seats, thereby the sprocket drives the second transmission chain to rotate).

[0032] The scraping module 30 includes a plurality of scraper blades 31. Each scraper blade 31 is fixedly mounted on the second conveyor chain 27 via a first scraper blade mounting member 32 and a second scraper blade mounting member 33. The scraper blades 31 are used (driven by the second conveyor chain) to push the sticky sludge to the discharge port 15.

[0033] The purging module 40 includes a main air supply pipe 41 and a first air supply branch pipe 42, a second air supply branch pipe 43, and a third air supply branch pipe 44 connected to the main air supply pipe 41. The first air supply branch pipe 42 is installed on the baffle 14 and is provided with a plurality of first nozzles 421. The first nozzles 421 are laterally (i.e., the baffle is towards the sprocket) facing the second transmission chain 27. The second air supply branch pipe 43 is installed on the top plate 13 and is provided with a plurality of second nozzles 431. The second nozzles 431 are directed from top to bottom towards the side of the sprocket 26 near the baffle 14. The third air supply branch pipe 44 is installed on the top plate 13 and is provided with a plurality of third nozzles 441. The third nozzles 441 are directed from top to bottom towards the side of the sprocket 26 away from the baffle 14.

[0034] Specifically, the main gas supply pipe 41 is connected to compressed air.

[0035] More specifically, the baffle 14 is provided with an observation window 141.

[0036] Furthermore, the first conveyor chain 22 is equipped with a protective cover 221.

[0037] Furthermore, the compressed air blown out by the nozzle is used to peel the sticky sludge off the scraper 31 and deliver it to the discharge port 15.

[0038] Regarding this utility model:

[0039] After the scraper pushes the sticky sludge to the discharge port, it is in the first position. There will be some sticky sludge sticking to the scraper. First, compressed air is blown from the side through the first nozzle (the horizontal compressed air is perpendicular to the scraping surface of the scraper) to blow the sludge on the scraper to the discharge port.

[0040] Then, as the sprocket drives the second conveyor chain, it moves the scraper to the second position so that the second nozzle blows compressed air vertically toward the scraper (the compressed air in the vertical direction is almost perpendicular to the scraping surface of the scraper), blowing the sludge on the scraper to the discharge port.

[0041] Finally, the scraper moves to the third position so that the third nozzle blows compressed air vertically toward the scraper (the compressed air in the vertical direction is almost parallel to the scraping surface of the scraper), and blows the sludge on the scraper back to the discharge port to thoroughly clean the residual sludge.

[0042] It is worth mentioning that the technical features such as viscous sludge involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0043] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A viscous sludge anti-pumping device, characterized by, It includes a support module, a drive module, a scraping module, and a purging module, among which: The support module includes a first side frame, a second side frame, a top plate, and a baffle. The top plate is fixedly installed on the top of the first side frame, the top of the second side frame, and the top of the baffle. A discharge port is provided between the bottom of the first side frame and the bottom of the second side frame. The drive module includes a motor, a first transmission chain, a drive shaft, a first bearing housing, a second bearing housing, a sprocket, and a second transmission chain. The motor is fixedly installed on the top of the top plate. The first bearing housing is fixedly installed on the first side frame, and the second bearing housing is fixedly installed on the second side frame. One end of the drive shaft is installed on the first bearing housing, and the other end of the drive shaft passes through the second bearing housing and is connected to the drive end of the motor through the first transmission chain. The sprocket is sleeved on the drive shaft and located between the first bearing housing and the second bearing housing. The second transmission chain is installed on the sprocket. The scraping module includes several scrapers, each of which is fixedly mounted to the second conveyor chain via a first scraper mounting component and a second scraper mounting component. The scrapers are used to push the sticky sludge to the discharge port. The purging module includes a main air supply pipe and a first air supply branch pipe, a second air supply branch pipe, and a third air supply branch pipe connected to the main air supply pipe. The first air supply branch pipe is installed on the baffle and is provided with a plurality of first nozzles, which are laterally directed toward the second conveyor chain. The second air supply branch pipe is installed on the top plate and is provided with a plurality of second nozzles, which are directed from top to bottom toward the side of the sprocket near the baffle. The third air supply branch pipe is installed on the top plate and is provided with a plurality of third nozzles, which are directed from top to bottom toward the side of the sprocket away from the baffle.

2. A viscous sludge anti-pumping device according to claim 1, characterized in that The main gas supply pipe is connected to compressed air.

3. A viscous sludge anti-pumping device according to claim 1, wherein The baffle is equipped with an observation window.

4. A viscous sludge anti-pumping device according to claim 1, wherein The first conveyor chain is equipped with a protective cover.

5. A viscous sludge anti-pumping device according to claim 1, wherein Compressed air blown from the nozzle is used to peel the sticky sludge off the scraper and deliver it to the discharge port.

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