Sludge pretreatment bin

Abstract

The utility model provides a sludge pretreatment bin, and relates to the technical field of sludge treatment.The sludge pretreatment bin comprises an L-shaped base and further comprises a sludge storage bin arranged on the horizontal section of the L-shaped base and internally hollow; the stirring assembly is mounted at the top of the sludge storage bin; the gas collecting pipe is fixedly connected to the outer side wall, close to the top, of the sludge storage bin; the gas collecting assembly is mounted at one end, far away from the sludge storage bin, of the gas collecting pipe; the combustion assembly is mounted on the horizontal section of the L-shaped base and is arranged below the sludge storage bin. According to the sludge treatment device, sludge can be fully stirred and reacted, combustible gas in harmful gas in the sludge is recycled, the harmful gas in the sludge is subjected to full-closed treatment while energy consumption is reduced, and earlier-stage pretreatment work is made for follow-up treatment of the sludge.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge treatment, in particular to a sludge pretreatment bin. Background Art

[0002] With the rapid development of society and the improvement of people's living standards, the output of industrial wastewater and urban sewage is also increasing. Sludge, a by-product, is produced during the sewage treatment process. It contains a large amount of organic matter and heavy metals as well as harmful gases such as methane and hydrogen sulfide. Direct discharge of untreated sludge will cause serious pollution to the environment. Existing sludge treatment methods often require the sludge to have a certain solid content and stability. Therefore, the sludge needs to be pretreated before treatment.

[0003] After searching, in the prior art, the Chinese patent application number CN217816763U discloses "a sludge cracking combustible gas recovery and utilization device", which includes a three-way interface, the lower end of the three-way interface is connected to the carbonization furnace, the upper end of the three-way interface is fixedly connected to a flange blind plate by bolts, the right side of the three-way interface is fixedly connected to a first metal bellows by bolts, the lower end of the right side of the cleaning mechanism is provided with an air outlet, the bottom of the second metal bellows is fixedly connected to a recovery connecting pipe, and the bottom of the recovery connecting pipe is connected to the combustion chamber. In this application, a negative pressure is drawn by a fan in the combustion chamber. Under the guidance of the negative pressure, the pyrolysis gas enters the cleaning mechanism from the carbonization furnace through the three-way interface, and the dust in the combustible gas is removed by the cleaning mechanism. The combustible gas after the dust is removed enters the recovery connecting pipe through a pipeline, and finally re-enters the combustion chamber through the recovery connecting pipe, thereby reusing the combustible gas and reducing energy consumption. However, the following defects still exist:

[0004] In the above patent documents, there is no device for fully stirring the sludge, which may easily lead to insufficient sludge reaction, resulting in incomplete treatment of harmful gases in the sludge, and affecting the next step of sludge treatment.

[0005] Therefore, we made improvements to this and proposed a sludge pretreatment tank. Utility Model Content

[0006] The purpose of the utility model is to address the problem that the existing sludge stirring device does not have sufficient sludge stirring, which easily leads to insufficient sludge reaction, resulting in incomplete treatment of harmful gases in the sludge, and affecting the next process of sludge treatment.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model provides the following technical solutions:

[0008] A sludge pretreatment tank is provided to improve the above problems.

[0009] The specific application is as follows:

[0010] Includes L-shaped base, also includes:

[0011] A sludge storage silo is provided on the horizontal section of the L-shaped base and is hollow inside;

[0012] A stirring assembly, the stirring assembly being installed on the top of the sludge storage silo;

[0013] An air collecting pipe, which is fixedly connected to the outer wall of the sludge storage bin near the top;

[0014] A gas collecting assembly, the gas collecting assembly being installed at one end of the gas collecting pipe away from the sludge storage bin;

[0015] A combustion assembly is installed on the horizontal section of the L-shaped base and is placed below the sludge storage bin.

[0016] As a preferred technical solution of the present application, the vertical section of the L-shaped base is fixedly connected to a first horizontal plate, the top of the first horizontal plate is fixedly connected to a sludge extraction pump, the feed port of the sludge extraction pump is fixedly connected to a suction pipe, the end of the suction pipe away from the sludge extraction pump is placed in the sludge pool, the discharge port of the sludge extraction pump is fixedly connected to a feeding pipe, and the end of the feeding pipe away from the sludge extraction pump is connected to the inner cavity of the sludge storage bin.

[0017] The transmission mechanism that this L-shaped gear is connected with this L-shaped gear is that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that this L-shaped gear is that the transmission mechanism that

[0018] As the preferred technical solution of the present application, the gas collecting assembly includes an air storage tank fixedly connected to the end of the gas collecting pipe away from the sludge storage bin and a three-way interface fixedly connected at the junction of the gas collecting pipe and the air storage tank. The gas collecting pipe is connected to the inner cavity of the sludge storage bin, and the pipe section of the gas collecting pipe away from the sludge storage bin is sequentially provided with a moisture separator, a fan and a first one-way valve.

[0019] As the preferred technical solution of the present application, the combustion assembly includes a gas pipe fixedly connected to the other end of the three-way interface and a burner fixedly connected to the end of the gas pipe away from the three-way interface. A second one-way valve is provided in the pipe section between the three-way interface and the burner, and the burner is fixedly connected below the bottom of the sludge storage bin.

[0020] As the preferred technical solution of this application, the bottom wall of the sludge storage bin is fixedly connected with a discharge pipe, the discharge pipe is communicated with the inner cavity of the sludge storage bin, and a support leg is fixedly connected between the bottom of the sludge storage bin and the horizontal section of the L-shaped base.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the scheme of this application:

[0023] Through the provided stirring assembly, the rotation of the motor drive end drives the driving rod to rotate, and then drives the first gear and the rotating block to rotate. The rotation of the rotating block causes the vertical rod, the oblique rod and the scraper to rotate accordingly. Since the scraper is in close contact with the inner wall of the sludge storage bin, the sludge on the inner wall of the sludge storage bin is scraped off during rotation to prevent the inner wall from sticking to the sludge. The rotation of the first gear drives the second gear meshing with it to rotate, and then drives the stirring rod and the stirring blade to rotate. The stirring blade makes a circular motion in the inner cavity of the sludge storage bin and rotates at the same time, thereby achieving full stirring reaction of the sludge in the sludge storage bin, solving the problem in the prior art that there is no sludge full stirring device, which is prone to insufficient sludge reaction, resulting in incomplete treatment of harmful gases in the sludge, and affecting the next process of sludge treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The main view of the sludge pretreatment bin provided for this application;

[0025] Figure 2 This is a left view of a sludge pretreatment bin provided in this application;

[0026] Figure 3 A schematic diagram of the overall structure of a sludge pretreatment bin provided in this application;

[0027] Figure 4 A schematic diagram of the structure of a stirring assembly for a sludge pretreatment bin provided in this application;

[0028] Figure 5 This is a schematic diagram of the rotating block connection of a sludge pretreatment bin provided in this application.

[0029] Indicated in the figure:

[0030] 1. L-shaped base; 2. Sludge storage silo; 3. Stirring assembly; 301. Second horizontal plate; 302. Support vertical plate; 303. Motor; 304. Drive rod; 305. First gear; 306. Rotating block; 307. Slot; 308. Vertical rod; 309. Diagonal rod; 310. Scraper; 311. Rotating rod; 312. Second gear; 313. Stirring rod; 314. Stirring blade; 4. Gas collecting pipe; 5. Gas collecting assembly; 501. Gas storage tank; 502. Three-way interface; 503. Moisture separator; 504. Fan; 505. First one-way valve; 6. Combustion assembly; 601. Gas pipe; 602. Burner; 603. Second one-way valve; 7. First horizontal plate; 8. Sludge extraction pump; 9. Extraction pipe; 10. Feed pipe; 11. Discharge pipe; 12. Support leg. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them.

[0032] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0035] like Figure 1-Figure 5 As shown, this embodiment provides a sludge pretreatment bin, including an L-shaped base 1, and further comprising:

[0036] The sludge storage bin 2 is arranged on the horizontal section of the L-shaped base 1 and is hollow inside;

[0037] A stirring assembly 3, wherein the stirring assembly 3 is installed on the top of the sludge storage bin 2;

[0038] An air collecting pipe 4, which is fixedly connected to the outer wall of the sludge storage bin 2 near the top;

[0039] A gas collecting assembly 5, the gas collecting assembly 5 is installed at one end of the gas collecting pipe 4 away from the sludge storage bin 2;

[0040] The combustion assembly 6 is installed on the horizontal section of the L-shaped base 1 and is placed below the sludge storage bin 2.

[0041] like Figure 1 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the vertical section of the L-shaped base 1 is fixedly connected to the first horizontal plate 7, the top of the first horizontal plate 7 is fixedly connected to the sludge extraction pump 8, the feed port of the sludge extraction pump 8 is fixedly connected to the extraction pipe 9, the end of the extraction pipe 9 away from the sludge extraction pump 8 is placed in the sludge pool, the discharge port of the sludge extraction pump 8 is fixedly connected to the feeding pipe 10, the end of the feeding pipe 10 away from the sludge extraction pump 8 is connected to the inner cavity of the sludge storage bin 2.

[0042] like Figure 1 、 Figure 4 and Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, the stirring assembly 3 includes a second horizontal plate 301 fixedly connected to the vertical section of the L-shaped base 1, a supporting vertical plate 302 fixedly connected to the top of the second horizontal plate 301, a motor 303 fixedly connected to the side wall of the supporting vertical plate 302, a driving rod 304 fixedly connected to the driving end of the motor 303, a first gear 305 fixedly connected to the end of the driving rod 304 away from the motor 303, and a rotating block 306 fixedly connected to the outer wall of the driving rod 304, a slot 307 is provided on the rotating block 306, the inner wall of the slot 307 is fixedly connected to a vertical rod 308, and the end of the vertical rod 308 away from the rotating block 306 is rotatably connected to an oblique rod 309, the end of the inclined rod 309 away from the vertical rod 308 is rotatably connected to the scraper 310, the bottom of the rotating block 306 is fixedly connected to the evenly distributed and vertically arranged rotating rods 311, the end of the rotating rod 311 away from the rotating block 306 is rotatably connected to the second gear 312 meshing with the first gear 305, the bottom of the second gear 312 is fixedly connected to the inclined stirring rod 313, the end of the stirring rod 313 away from the second gear 312 is rotatably connected to the stirring blade 314, through the meshing first gear 305 and second gear 312, the stirring blade 314 makes a circular motion in the inner cavity of the sludge storage bin 2 while rotating, thereby enhancing the stirring effect, so that the sludge is fully reacted.

[0043] like Figure 2As shown, as a preferred embodiment, on the basis of the above method, further, the gas collecting assembly 5 includes a gas tank 501 fixedly connected to the end of the gas collecting pipe 4 away from the sludge storage bin 2 and a three-way interface 502 fixedly connected at the junction of the gas collecting pipe 4 and the gas tank 501. The gas collecting pipe 4 is connected to the inner cavity of the sludge storage bin 2. The pipe section of the gas collecting pipe 4 away from the sludge storage bin 2 is sequentially provided with a moisture separator 503, a fan 504 and a first one-way valve 505. The first one-way valve 505 is provided to enable the gas to flow in one direction to prevent the gas in the gas tank 501 from flowing back. The fan 504 can provide a negative pressure environment to guide the collected combustible gas to flow into the gas tank 501.

[0044] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, the combustion assembly 6 includes a gas pipe 601 fixedly connected to the other end of the three-way interface 502 and a burner 602 fixedly connected to the end of the gas pipe 601 away from the three-way interface 502, and a second one-way valve 603 is provided in the pipe section between the three-way interface 502 and the burner 602. The burner 602 is fixedly connected to the bottom of the sludge storage bin 2. The second one-way valve 603 is set to enable the combustible gas in the gas tank 501 to flow unidirectionally to the burner 602, thereby preventing the gas flowing to the burner 602 from flowing back and causing a safety accident.

[0045] like Figure 1 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the bottom wall of the sludge storage bin 2 is fixedly connected with a discharge pipe 11, the discharge pipe 11 is connected to the inner cavity of the sludge storage bin 2, and the bottom of the sludge storage bin 2 and the horizontal section of the L-shaped base 1 are fixedly connected with a support leg 12.

[0046] Specifically, when the sludge pretreatment bin is in use: the sludge extraction pump 8 is started to extract the sludge in the sludge pool into the inner cavity of the sludge storage bin 2 through the extraction pipe 9 and the feed pipe 10. During the sludge extraction process, the motor 303 is started. The rotation of the driving end of the motor 303 drives the driving rod 304 to rotate, thereby driving the first gear 305 and the rotating block 306 to rotate. The rotation of the rotating block 306 causes the vertical rod 308, the inclined rod 309 and the scraper 310 to rotate accordingly. Since the scraper 310 fits tightly against the inner wall of the sludge storage bin 2, the sludge on the inner wall of the sludge storage bin 2 is scraped off during rotation to prevent the inner wall from sticking to the sludge and affecting the full reaction of the sludge. The rotation of the first gear 305 drives the second gear 312 meshing with it to rotate, thereby driving the stirring rod 313 and the stirring blade 314 to rotate. The stirring blade 314 rotates while performing a circular motion in the inner cavity of the sludge storage bin 2. , so that the sludge in the sludge storage bin 2 can be fully reacted, and the fan 504 draws the gas collecting pipe 4 into a negative pressure, so that the methane, hydrogen sulfide and other flammable gases generated by the sludge in the sludge storage bin 2 flow to the gas storage tank 501 through the gas collecting pipe 4. During the flow of the gas, the water in the gas is separated by the moisture separator 503, and the gas enters the gas storage tank 501 for storage through the first one-way valve 505. The combustible gas in the gas storage tank 501 flows to the burner 602 through the gas transmission pipe 601 and the second one-way valve 603. The burner 602 is started to heat the sludge storage bin 2, so that the sludge storage bin 2 heats up and continues to overflow the gas, thereby reusing the combustible gas in the harmful gas in the sludge, reducing energy consumption, and at the same time carrying out a fully sealed treatment of the harmful gas in the sludge, completing the preliminary pretreatment work for the subsequent treatment of the sludge. During the subsequent treatment, the sludge is sent to the next step through the discharge pipe 11.

[0047] All technical features in this embodiment can be freely combined according to actual needs.

[0048] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A sludge pretreatment tank, comprising an L-shaped base (1), characterized in that: Also includes: A sludge storage bin (2), the sludge storage bin (2) being arranged on a horizontal section of the L-shaped base (1) and having a hollow interior; A stirring assembly (3), the stirring assembly (3) being installed on the top of the sludge storage bin (2); An air collecting pipe (4), the air collecting pipe (4) being fixedly connected to the outer side wall of the sludge storage bin (2) near the top; A gas collecting assembly (5), the gas collecting assembly (5) being installed at one end of the gas collecting pipe (4) away from the sludge storage bin (2); A combustion assembly (6) is installed on the horizontal section of the L-shaped base (1) and is placed below the sludge storage bin (2).

2. A sludge pretreatment bin according to claim 1, characterized in that: The vertical section of the L-shaped base (1) is fixedly connected to a first transverse plate (7), the top of the first transverse plate (7) is fixedly connected to a sludge extraction pump (8), the feed port of the sludge extraction pump (8) is fixedly connected to a suction pipe (9), the end of the suction pipe (9) away from the sludge extraction pump (8) is placed in the sludge pool, the discharge port of the sludge extraction pump (8) is fixedly connected to a feed pipe (10), and the end of the feed pipe (10) away from the sludge extraction pump (8) is communicated with the inner cavity of the sludge storage bin (2).

3. A sludge pretreatment bin according to claim 1, characterized in that: The stirring assembly (3) comprises a second horizontal plate (301) fixedly connected to the vertical section of the L-shaped base (1), a supporting vertical plate (302) fixedly connected to the top of the second horizontal plate (301), a motor (303) fixedly connected to the side wall of the supporting vertical plate (302), a driving rod (304) fixedly connected to the driving end of the motor (303), a first gear (305) fixedly connected to the end of the driving rod (304) away from the motor (303), and a rotating block (306) fixedly connected to the outer wall of the driving rod (304), wherein the rotating block (306) is provided with a slot (307), the inner wall of the slot (307) is fixedly connected to a vertical rod (308), and the vertical rod (309) is fixedly connected to the inner wall of the slot (309). One end of the rod (308) away from the rotating block (306) is rotatably connected to an inclined rod (309), and one end of the inclined rod (309) away from the vertical rod (308) is rotatably connected to a scraper (310). The bottom of the rotating block (306) is fixedly connected to evenly distributed and vertically arranged rotating rods (311). One end of the rotating rod (311) away from the rotating block (306) is rotatably connected to a second gear (312) meshing with the first gear (305). The bottom of the second gear (312) is fixedly connected to an inclined stirring rod (313), and one end of the stirring rod (313) away from the second gear (312) is rotatably connected to a stirring blade (314).

4. A sludge pretreatment bin according to claim 1, characterized in that: The gas collecting assembly (5) comprises a gas storage tank (501) fixedly connected to one end of the gas collecting pipe (4) away from the sludge storage bin (2) and a three-way interface (502) fixedly connected to the junction of the gas collecting pipe (4) and the gas storage tank (501); the gas collecting pipe (4) is in communication with the inner cavity of the sludge storage bin (2); and the pipe section of the gas collecting pipe (4) away from the sludge storage bin (2) is provided with a moisture separator (503), a fan (504) and a first one-way valve (505) in sequence.

5. The sludge pretreatment bin according to claim 1, characterized in that: The combustion assembly (6) comprises a gas pipe (601) fixedly connected to the other end of the three-way interface (502) and a burner (602) fixedly connected to the end of the gas pipe (601) away from the three-way interface (502). A second one-way valve (603) is provided in the pipe section between the three-way interface (502) and the burner (602). The burner (602) is fixedly connected below the bottom of the sludge storage bin (2).

6. The sludge pretreatment bin according to claim 1, characterized in that: A discharge pipe (11) is fixedly connected to the bottom wall of the sludge storage bin (2), the discharge pipe (11) is communicated with the inner cavity of the sludge storage bin (2), and a support leg (12) is fixedly connected between the bottom of the sludge storage bin (2) and the horizontal section of the L-shaped base (1).

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