A conveyor for air-drying sludge

Abstract

The present application relates to a kind of conveyors for air-drying sludge, including conveyor pipe, the inlet pipe and outlet pipe are respectively fixedly installed at the both ends of the conveyor pipe, the top of the outlet pipe is provided with a cleaning mechanism;Clean water is injected into the inner cavity of the water storage tank above the piston through the connecting pipe, when the water surface of clean water slightly overflows several electric heating rods, several electric heating rods are opened, and clean water is heated to warm up, the water pump is closed, and the extension end of the hydraulic cylinder is retracted to half length, the heated clean water in the water storage tank is extruded, at this time, the heated clean water injects atomized hot water into the conveyor pipe, so that it quickly and efficiently soaks large pieces of dry sludge into softened sludge, then the water pump is opened, and clean water is injected into the inner cavity of the water storage tank below the piston through the connecting pipe, and the softened sludge is flushed by the second water outlet pipe and the water outlet head, so as to realize the effect of completely cleaning large pieces of dry sludge.

Description

Technical Field

[0001] This invention relates to the field of sludge conveyor technology, specifically a conveyor for air-dried sludge. Background Technology

[0002] In sludge treatment, sludge often needs to be dried. After drying, the sludge needs to be transported by a scraper conveyor. The scraper will be covered with a lot of debris, and the commonly used scraper conveyor is inconvenient to handle. If it is not cleaned, it will affect its use over time. Therefore, it is necessary to propose a scraper conveyor for sludge drying that is easy to clean. A solution is needed to solve the above-mentioned technical problems.

[0003] As disclosed in the patent document CN214651573U, the device uses a sludge drying scraper conveyor that is easy to clean. After the dried sludge is conveyed by the conveyor body, the dirt adhering to the scraper can be washed off. The cleaning components used for washing are easy to install and have a compact structure with the conveyor body. The dirty material washed off can also be collected and treated, and the water used for washing can be filtered, making it easy to clean the scraper conveyor after use.

[0004] However, the aforementioned device directly washes the conveyor with clean water. After the conveyor transports the dried sludge, the dried sludge tends to adhere to its inner wall and scraper. Washing with clean water can only remove a layer of sludge from the surface of large pieces of dried sludge, making it difficult to completely clean it. Secondly, some dried sludge adhering to the inner wall of the conveyor is in dead corners, requiring a large amount of water to be sprayed to completely clean it, which consumes a lot of water. Summary of the Invention

[0005] The technical problem that this solution addresses is:

[0006] (1) How to efficiently and completely remove large pieces of dried sludge;

[0007] (2) How to quickly clean up the dried sludge in the dead corners and avoid consuming a lot of water.

[0008] The objective of this invention can be achieved through the following technical solution: a conveyor for air-drying sludge, comprising a conveyor pipe, with an inlet pipe and an outlet pipe fixedly installed at both ends of the conveyor pipe, and a cleaning mechanism provided at the top of the outlet pipe; the cleaning mechanism includes a water storage tank fixedly connected to the outlet pipe, a flushing unit for cleaning residual sludge inside the conveyor pipe provided on one side of the water storage tank, an adjusting unit for controlling the water flow direction movably installed inside the water storage tank, and several electric heating rods fixedly installed at the top of the water storage tank;

[0009] A support plate is provided on the other side of the water storage tank. A water pump is fixedly installed on the top of the support plate. The input end of the water pump is connected to a water inlet pipe, and the output end of the water pump is connected to a connecting pipe. The output end of the connecting pipe is connected to the middle of the water storage tank.

[0010] A further technical improvement of the present invention is that: the rinsing unit includes a support frame fixedly connected to the outer wall of the water storage tank, a first water outlet pipe is fixedly inserted into the top of the support frame, an atomizing nozzle is fixedly installed at the output end of the first water outlet pipe, the input end of the first water outlet pipe is connected to the top of the water storage tank, a second water outlet pipe is fixedly inserted into the bottom of the support frame, the output end of the second water outlet pipe is inclined and fixedly installed with a water outlet head, and the input end of the second water outlet pipe is connected to the bottom of the water storage tank.

[0011] A further technical improvement of the present invention is as follows: a one-way valve is fixedly installed at the connection between the input end of the first water outlet pipe and the water storage tank. The opening direction of the one-way valve is the same as the direction of water flow from the water storage tank to the atomizing nozzle. The horizontal height of the connection between the input end of the first water outlet pipe and the water storage tank is higher than the horizontal height of several electric heating rods. When the extended end of the hydraulic cylinder is in its longest state, the piston is located below the connecting pipe. By turning on the water pump, purified water is injected into the inner cavity of the water storage tank above the piston through the connecting pipe. When the water level of the purified water slightly overflows the several electric heating rods, the several electric heating rods are turned on to heat the purified water. The water is heated until it reaches a temperature between 55 and 75 degrees Celsius. Then, the water pump is turned off, and the extended end of the hydraulic cylinder retracts to half its length, squeezing the heated water in the storage tank. At this time, the heated water is injected into the still-operating conveyor pipe through the first outlet pipe and the atomizing nozzle, allowing it to quickly and efficiently wet the large pieces of dry sludge into softened sludge. Then, the water pump is turned on again, allowing the water to be injected into the storage tank cavity below the piston through the connecting pipe. This, combined with the second outlet pipe and the outlet head, flushes the softened sludge, thus completely removing the large pieces of dried sludge.

[0012] A further technical improvement of the present invention is that the atomizing nozzle and the water outlet are on the same horizontal plane, and the output ends of the atomizing nozzle and the water outlet both face the inside of the conveyor pipe.

[0013] A further technical improvement of the present invention is as follows: the adjustment unit includes a hydraulic cylinder fixedly connected to the top of the water storage tank via a mounting bracket. The hydraulic cylinder is arranged longitudinally, and its extended end extends through the water storage tank. A piston is slidably connected to the inner wall of the water storage tank, and the top of the piston is fixedly connected to the extended end of the hydraulic cylinder. Several electric heating rods further heat the small amount of purified water above the piston, causing it to boil and form steam. The first water outlet pipe is blocked by a one-way valve, increasing the air pressure inside the water storage tank. When the air pressure exceeds the opening limit of the one-way valve, the steam in the water storage tank is quickly sprayed out from the atomizing nozzle, injecting high-temperature steam into the conveyor pipe. This allows the steam to quickly fill the conveyor pipe, efficiently and thoroughly re-wetting the dried sludge remaining in the dead corners. Simultaneously, the second water outlet pipe and water head are used to flush the sludge, thus avoiding the consumption of a large amount of purified water while quickly cleaning the dried sludge remaining in the dead corners.

[0014] A further technical improvement of the present invention is that a scraper is installed inside the conveyor pipe via chain drive.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In use, when the hydraulic cylinder is at its longest extension, the piston is located below the connecting pipe. By turning on the water pump, purified water is injected into the water tank cavity above the piston through the connecting pipe. When the water level slightly overflows several electric heating rods, these rods are turned on to heat the water. Once the water temperature reaches between 55 and 75 degrees Celsius, the water pump is turned off, and the hydraulic cylinder retracts to half its length, squeezing the heated water in the water tank. At this time, the heated water is injected into the still-operating conveyor pipe through the first outlet pipe and atomizing nozzle, quickly and efficiently wetting large pieces of dry sludge into softened sludge. Then, by turning on the water pump again, purified water is injected into the water tank cavity below the piston through the connecting pipe. This, combined with the second outlet pipe and nozzle, flushes the softened sludge, thus completely removing the large pieces of dried sludge.

[0017] In use, this invention uses several electric heating rods to further heat a small amount of purified water above the piston, causing it to boil and form steam. This steam is then blocked by a one-way valve, increasing the pressure inside the water tank. When the pressure exceeds the opening limit of the one-way valve, the steam in the water tank is rapidly ejected from the atomizing nozzle, injecting high-temperature steam into the conveyor pipe. This allows the steam to quickly fill the conveyor pipe, efficiently and thoroughly re-wetting the dried sludge remaining in corners. Simultaneously, the second water outlet and the water head flush the sludge, thus quickly cleaning the dried sludge remaining in corners without consuming a large amount of purified water. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the cleaning mechanism structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the rinsing unit structure of the present invention;

[0022] Figure 4 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0023] Figure 5 This is a three-dimensional schematic diagram of the adjustment unit structure of the present invention.

[0024] In the diagram: 1. Cleaning mechanism; 2. Discharge pipe; 3. Scraper; 4. Feed pipe; 5. Conveyor pipe; 101. Mounting frame; 102. Electric heating rod; 103. Connecting pipe; 104. Water pump; 105. Water inlet pipe; 106. Support plate; 107. Water storage tank; 108. Flushing unit; 109. Hydraulic cylinder; 110. Check valve; 111. Piston; 1081. Support frame; 1082. Second water outlet pipe; 1083. Water outlet head; 1084. Atomizing nozzle; 1085. First water outlet pipe. Detailed Implementation

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-5 As shown, a conveyor for air-dried sludge includes a conveyor pipe 5, with an inlet pipe 4 and an outlet pipe 2 fixedly installed at both ends of the conveyor pipe 5, a scraper 3 installed inside the conveyor pipe 5 via chain drive, and a cleaning mechanism 1 installed at the top of the outlet pipe 2.

[0027] Please see Figure 1 and Figure 2As shown, the cleaning mechanism 1 includes a water storage tank 107 fixedly connected to the discharge pipe 2. A flushing unit 108 for cleaning residual sludge inside the conveyor pipe 5 is provided on one side of the water storage tank 107. An adjustment unit for controlling the water flow direction is movably provided inside the water storage tank 107. Several electric heating rods 102 are fixedly provided on the top of the water storage tank 107.

[0028] Please see Figure 2 As shown, a support plate 106 is provided on the other side of the water storage tank 107. A water pump 104 is fixedly installed on the top of the support plate 106. The input end of the water pump 104 is connected to a water inlet pipe 105, and the output end of the water pump 104 is connected to a connecting pipe 103. The output end of the connecting pipe 103 is connected to the middle of the water storage tank 107.

[0029] Please see Figure 2 and Figure 3 As shown, the above-mentioned rinsing unit 108 includes a support frame 1081 fixedly connected to the outer wall of the water storage tank 107. A first water outlet pipe 1085 is fixedly inserted into the top of the support frame 1081. An atomizing nozzle 1084 is fixedly installed at the output end of the first water outlet pipe 1085. The input end of the first water outlet pipe 1085 is connected to the top of the water storage tank 107. A second water outlet pipe 1082 is fixedly inserted into the bottom of the support frame 1081. The output end of the second water outlet pipe 1082 is inclined and a water outlet head 1083 is fixedly installed thereon. The input end of the second water outlet pipe 1082 is connected to the bottom of the water storage tank 107.

[0030] Please see Figure 2 and Figure 4As shown, a one-way valve 110 is fixedly installed at the connection between the input end of the first water outlet pipe 1085 and the water storage tank 107. The opening direction of the one-way valve 110 is the same as the direction of water flow from the water storage tank 107 to the atomizing nozzle 1084. The horizontal height of the connection between the input end of the first water outlet pipe 1085 and the water storage tank 107 is higher than the horizontal height of the several electric heating rods 102. When the extended end of the hydraulic cylinder 109 is in its longest state, the piston 111 is located below the connecting pipe 103. By turning on the water pump 104, purified water is injected into the inner cavity of the water storage tank 107 above the piston 111 through the connecting pipe 103. When the water level of the purified water slightly overflows the several electric heating rods 102, the several electric heating rods 102 are turned on to purify the purified water. After heating and raising the temperature of the purified water to between 55 and 75 degrees Celsius, the water pump 104 is turned off. The extended end of the hydraulic cylinder 109 retracts to half its length, squeezing the heated purified water in the water storage tank 107. At this time, the heated purified water is injected into the still-operating conveyor pipe 5 through the first water outlet pipe 1085 and the atomizing nozzle 1084, which quickly and efficiently wets the large pieces of dry sludge into softened sludge. Then, by turning on the water pump 104, the purified water is injected into the inner cavity of the water storage tank 107 below the piston 111 through the connecting pipe 103. The second water outlet pipe 1082 and the water outlet 1083 then flush the softened sludge, thereby completely removing the large pieces of dried sludge.

[0031] Please see Figure 1 and Figure 3 As shown, the atomizing nozzle 1084 and the water outlet 1083 are on the same horizontal plane, and the output ends of both the atomizing nozzle 1084 and the water outlet 1083 face the inside of the conveyor pipe 5.

[0032] Please see Figure 2 and Figure 5As shown, the aforementioned adjustment unit includes a hydraulic cylinder 109 fixedly connected to the top of the water storage tank 107 via a mounting bracket 101. The hydraulic cylinder 109 is arranged longitudinally, and its extended end movably penetrates the water storage tank 107. A piston 111 is slidably connected to the inner wall of the water storage tank 107, and the top of the piston 111 is fixedly connected to the extended end of the hydraulic cylinder 109. Several electric heating rods 102 further heat the small amount of purified water above the piston 111, causing it to boil and form steam. A one-way valve 110 then blocks the first water outlet pipe 1085. The air pressure inside the water storage tank 107 is increased. When the air pressure exceeds the opening limit of the one-way valve 110, the water vapor in the water storage tank 107 is quickly sprayed out from the atomizing nozzle 1084, injecting high-temperature water vapor into the conveyor pipe 5. This allows the water vapor to quickly fill the conveyor pipe 5, efficiently and thoroughly re-wetting the dried sludge remaining in the dead corners. At the same time, it is used in conjunction with the second water outlet pipe 1082 and the water outlet head 1083 to flush it. This avoids consuming a large amount of clean water and can quickly clean the dried sludge remaining in the dead corners.

[0033] Please see Figure 2 As shown, a sealing ring is provided at the connection between the extended end of the hydraulic cylinder 109 and the water storage tank 107.

[0034] Working principle: In use, after the dried sludge in the conveyor pipe 5 has been transported, the remaining dried sludge inside needs to be cleaned. At this time, the extended end of the hydraulic cylinder 109 is in its longest position, and the piston 111 is located below the connecting pipe 103. By turning on the water pump 104, clean water is injected into the inner cavity of the water storage tank 107 above the piston 111 through the connecting pipe 103. When the water level slightly overflows the electric heating rods 102, the electric heating rods 102 are turned on to heat the clean water. After heating and raising the temperature of the purified water to between 55 and 75 degrees Celsius, the water pump 104 is turned off. The extended end of the hydraulic cylinder 109 retracts to half its length, squeezing the heated purified water in the water storage tank 107. At this time, the heated purified water is injected into the still-operating conveyor pipe 5 through the first water outlet pipe 1085 and the atomizing nozzle 1084, which quickly and efficiently wets the large pieces of dry sludge into softened sludge. Then, by turning on the water pump 104, the purified water is injected through the connecting pipe 103. The water enters the inner cavity of the water tank 107 below the piston 111, and, together with the second water outlet pipe 1082 and the water outlet head 1083, flushes the softened sludge, thereby completely removing large pieces of dried sludge. When the extended end of the hydraulic cylinder 109 retracts to half its length, a small amount of heated clean water remains above the piston 111. This water is further heated by several electric heating rods 102, causing it to boil and form steam. This steam then blocks the first water outlet pipe 1085 through the one-way valve 110, increasing the volume of water in the water tank 107. When the air pressure exceeds the opening limit of the one-way valve 110, the water vapor in the water storage tank 107 is quickly sprayed out from the atomizing nozzle 1084, injecting high-temperature water vapor into the conveyor pipe 5. This allows the water vapor to quickly fill the conveyor pipe 5, efficiently and thoroughly re-wetting the dried sludge remaining in the dead corners. At the same time, in conjunction with the second water outlet pipe 1082 and the water outlet head 1083, it can be flushed, thus avoiding the consumption of a large amount of clean water and quickly cleaning the dried sludge remaining in the dead corners.

[0035] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0036] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A conveyor for air-drying sludge, characterized in that: The system includes a conveyor pipe (5), with an inlet pipe (4) and an outlet pipe (2) fixedly installed at both ends of the conveyor pipe (5). A cleaning mechanism (1) is provided at the top of the outlet pipe (2). The cleaning mechanism (1) includes a water storage tank (107) fixedly connected to the outlet pipe (2). A flushing unit (108) for cleaning residual sludge inside the conveyor pipe (5) is provided on one side of the water storage tank (107). An adjustment unit for controlling the flow direction of water is movably installed inside the water storage tank (107). Several electric heating rods (102) are fixedly installed at the top of the water storage tank (107). A support plate (106) is provided on the other side of the water storage tank (107). A water pump (104) is fixedly installed on the top of the support plate (106). The input end of the water pump (104) is connected to a water inlet pipe (105), and the output end of the water pump (104) is connected to a connecting pipe (103). The output end of the connecting pipe (103) is connected to the middle part of the water storage tank (107). The adjustment unit includes a hydraulic cylinder (109) fixedly connected to the top of the water storage tank (107) via a mounting bracket (101). The extended end of the hydraulic cylinder (109) extends through the water storage tank (107). A piston (111) is slidably connected to the inner wall of the water storage tank (107). The top of the piston (111) is fixedly connected to the extended end of the hydraulic cylinder (109).

2. The conveyor for air-dried sludge according to claim 1, characterized in that, The rinsing unit (108) includes a support frame (1081) fixedly connected to a water storage tank (107). A first water outlet pipe (1085) is fixedly inserted into the top of the support frame (1081). An atomizing nozzle (1084) is fixedly installed at the output end of the first water outlet pipe (1085). The input end of the first water outlet pipe (1085) is connected to the top of the water storage tank (107). A second water outlet pipe (1082) is fixedly inserted into the bottom of the support frame (1081). The output end of the second water outlet pipe (1082) is inclined and fixedly installed with a water outlet head (1083). The input end of the second water outlet pipe (1082) is connected to the bottom of the water storage tank (107).

3. A conveyor for air-drying sludge according to claim 2, characterized in that, A one-way valve (110) is fixedly installed at the connection between the input end of the first water outlet pipe (1085) and the water storage tank (107). The horizontal height of the connection between the input end of the first water outlet pipe (1085) and the water storage tank (107) is higher than the horizontal height of several electric heating rods (102).

4. A conveyor for air-drying sludge according to claim 2, characterized in that, The atomizing nozzle (1084) and the water outlet (1083) are on the same horizontal plane, and the output ends of the atomizing nozzle (1084) and the water outlet (1083) are both facing the inside of the conveyor pipe (5).

5. A conveyor for air-drying sludge according to claim 1, characterized in that, The conveyor pipe (5) is equipped with scrapers (3) inside via chain drive.

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