A sludge excavation and conveying equipment

Abstract

This utility model provides a sludge excavation and conveying device, belonging to the field of sludge treatment technology, to solve the problems of existing sludge excavation and conveying equipment being prone to clogging and wear, reducing efficiency, and affecting subsequent processing steps when handling sludge containing impurities such as domestic waste, mud, and stones. It includes a sludge conveyor, an inlet, an outlet, a crushing roller, a drive motor, a lifting mechanism, a feeding assembly, and a lifting assembly. The inlet is fixedly installed on the upper part of the sludge conveyor; the outlet is fixedly installed on the lower part of the sludge conveyor; the crushing roller is installed on the upper part of the inlet; the drive motor is bolted to the front of the inlet; the lifting mechanism is bolted to the outside of the inlet; the feeding assembly is located inside the inlet; and the lifting assembly is located inside the lifting mechanism. This utility model has the advantages of avoiding clogging, being easy to use, and reducing wear.

Description

Technical Field

[0001] This utility model belongs to the field of sludge treatment technology, and more specifically, it relates to a sludge excavation and conveying equipment. Background Technology

[0002] Sludge deposited in rivers, lakes, and sewage treatment plants contains large amounts of organic matter, heavy metals, pathogens, and nutrients such as nitrogen and phosphorus. If not removed in a timely manner, pollutants may enter water bodies or soil through seepage and volatilization, exacerbating environmental pollution. Therefore, timely sludge treatment is necessary. Sludge extraction is a crucial step in sludge treatment. After extraction, the sludge needs to be transported to sedimentation tanks, silos, fermentation tanks, and other facilities for further processing. Therefore, a sludge extraction and conveying equipment is required. Existing sludge extraction and conveying equipment mainly includes screw conveyors, belt conveyors, and chain conveyors, among other methods, for transporting sludge.

[0003] The existing application number CN202322921509.7 discloses a sludge conveyor. The key technical points of the solution are: it includes a fixed base plate, a conveying pipe on the top surface of the fixed base plate, a PLC controller on the top surface of the fixed base plate, and a conveying assembly. The conveying assembly is located on the top surface of the fixed base plate and is used to convey sludge. The conveying assembly includes: a rotating plate on the top surface of the fixed base plate, a fixing hole on the top surface of the fixed base plate, a first drive motor fixedly sleeved on the inner circular wall of the fixing hole, and the top surface of the drive shaft of the first drive motor fixedly installed with the rotating plate. Through the coordinated use of the fixed base plate, conveying pipe, rotating plate, first support plate, fixing column, support hole, and hydraulic cylinder, the sludge conveying effect is comprehensively achieved. This allows for adjustment of the discharge direction of the conveying pipe, resulting in good discharge flexibility and facilitating operation.

[0004] Based on the above, existing sludge excavation and conveying equipment, when transporting the excavated sludge, contains a lot of domestic waste, mud, stones and other impurities, which can easily clog or aggravate the wear of the conveying equipment, affecting the conveying efficiency, and also affecting the normal operation of subsequent dewatering, treatment and other processes. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a sludge excavation and conveying device. This addresses the issue that existing sludge excavation and conveying devices often contain numerous impurities such as household waste, mud, and stones, which can easily clog or exacerbate wear on the conveying equipment, affecting conveying efficiency and hindering the normal operation of subsequent dewatering and processing steps.

[0006] The purpose and effectiveness of this utility model for conveying sludge excavation are achieved by the following specific technical means:

[0007] A sludge conveying device includes a sludge conveyor, a feed inlet, a discharge outlet, a crushing roller, a drive motor, a lifting mechanism, a feeding assembly, and a lifting assembly. The feed inlet is fixedly installed on the upper part of the sludge conveyor; the discharge outlet is fixedly installed on the lower part of the sludge conveyor; the crushing roller is installed on the upper part of the feed inlet; the drive motor is bolted to the front side of the feed inlet; the lifting mechanism is bolted to the outside of the feed inlet; the feeding assembly is disposed inside the feed inlet; and the lifting assembly is disposed inside the lifting mechanism.

[0008] Furthermore, the feeding assembly includes a guide groove and a separation plate, wherein the guide groove is formed on both sides inside the feed inlet; and the separation plate is slidably connected to the inside of the feed inlet in a horizontal direction.

[0009] Furthermore, the feeding assembly also includes: a drive shaft, a first synchronization mechanism, and scrapers. The drive shaft is fixedly installed inside the drive motor and is rotatably connected to the inside of the feed inlet. The first synchronization mechanism is rotatably connected to the inside of the feed inlet and is fixedly installed at the top of the drive shaft. Multiple sets of scrapers are provided, and the multiple sets of scrapers are arranged in a circumferential array outside the first synchronization mechanism. The two ends of the multiple sets of scrapers are slidably connected inside the guide groove.

[0010] Furthermore, the feeding assembly also includes: a driven shaft, a second synchronization mechanism, and a transmission cam. The driven shaft is rotatably connected inside the feed inlet; the second synchronization mechanism is fixedly connected to the outside of the drive shaft; and the transmission cam is fixedly installed on the top of the driven shaft.

[0011] Furthermore, the feeding assembly also includes: a first connecting rod and a second connecting rod, one end of the first connecting rod being hinged to the front side of the transmission cam; one end of the second connecting rod being fixedly installed on the outside of the separator plate, and the other end of the second connecting rod being hinged to one end of the first connecting rod.

[0012] Furthermore, the lifting assembly includes a return channel and a lifting channel. The return channel is fixedly installed on one side of the feed inlet and on the outer side of the bottom of the lifting mechanism. The lifting channel is fixedly installed on the outer side of the top of the lifting mechanism.

[0013] Furthermore, the lifting assembly also includes a lifting motor and a conveying auger, wherein the lifting motor is fixedly installed on the top of the lifting mechanism; the conveying auger is fixedly installed on the bottom of the lifting motor and is rotatably connected inside the lifting mechanism.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Firstly, this invention features a feeding assembly that, through the coordinated design of a crushing roller and a separating plate, achieves graded pretreatment of sludge. The crushing roller breaks down large impurities into smaller particles, reducing the risk of clogging; the separating plate utilizes a screen structure for precise screening, ensuring that only materials of the correct size enter the conveying stage. Simultaneously, the reciprocating motion of the scraper within the guide groove promptly removes residual impurities from the surface of the separating plate, preventing accumulation; and the transmission cam, in conjunction with a linkage mechanism, drives the separating plate to vibrate, significantly improving screening efficiency, preventing screen clogging, and effectively protecting downstream conveying equipment.

[0016] Secondly, this invention features a lifting component that achieves impurity recycling through a closed-loop design of the return channel, conveying auger, and crushing roller. Large impurities intercepted by the scraper are temporarily stored in the return channel and then lifted back to the top of the feed inlet by the conveying auger, re-entering the crushing roller for secondary crushing. This recycling mechanism ensures that all impurities reach the preset size requirements, avoiding equipment wear or processing interruptions due to excessively large impurities, and significantly improving overall processing efficiency and stability.

[0017] This invention has the advantages of avoiding blockage, being easy to use, and reducing wear. It prevents large pieces of garbage and impurities carried in the sludge from being transported to the subsequent processing unit by the sludge conveyor, effectively reducing sludge conveyor blockage and wear, and facilitating subsequent sludge processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the feed inlet structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the crushing roller structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the separation plate structure of this utility model.

[0022] Figure 5 This is a schematic diagram of the drive motor structure of this utility model.

[0023] Figure 6 This is a schematic diagram of the conveying auger structure of this utility model.

[0024] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0025] 1. Sludge conveyor; 2. Feed inlet; 201. Guide trough; 202. Separation plate; 3. Discharge outlet; 4. Crushing roller; 5. Drive motor; 501. Drive shaft; 502. First synchronization mechanism; 503. Scraper; 504. Second synchronization mechanism; 505. Driven shaft; 506. Transmission cam; 507. First connecting rod; 508. Second connecting rod; 6. Lifting mechanism; 601. Return channel; 602. Lifting channel; 603. Lifting motor; 604. Conveying auger. Detailed Implementation

[0026] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0027] Example 1:

[0028] As attached Figure 1 To be continued Figure 6 As shown:

[0029] This utility model provides a sludge excavation and conveying equipment, including a sludge conveyor 1, a feed inlet 2, a discharge outlet 3, a crushing roller 4, a drive motor 5, a lifting mechanism 6, and a feeding assembly. The feed inlet 2 is fixedly installed on the upper part of the sludge conveyor 1; the discharge outlet 3 is fixedly installed on the lower part of the sludge conveyor 1; the crushing roller 4 is installed on the upper part of the feed inlet 2; the drive motor 5 is bolted to the front side of the feed inlet 2; the lifting mechanism 6 is bolted to the outside of the feed inlet 2; and the feeding assembly is disposed inside the feed inlet 2.

[0030] The feeding assembly includes a guide groove 201 and a separation plate 202. The guide groove 201 is opened on both sides inside the feed inlet 2. The separation plate 202 is slidably connected to the inside of the feed inlet 2 in the horizontal direction.

[0031] The feeding assembly also includes: a drive shaft 501, a first synchronization mechanism 502, and a scraper 503. The drive shaft 501 is fixedly installed inside the drive motor 5 and is rotatably connected to the inside of the feed inlet 2. The first synchronization mechanism 502 is rotatably connected to the inside of the feed inlet 2 and is fixedly installed at the top of the drive shaft 501. Multiple sets of scrapers 503 are provided, and the multiple sets of scrapers 503 are arranged in a circumferential array outside the first synchronization mechanism 502. The two ends of the multiple sets of scrapers 503 are slidably connected to the inside of the guide groove 201.

[0032] The feeding assembly also includes: a driven shaft 505, a second synchronization mechanism 504, and a transmission cam 506. The driven shaft 505 is rotatably connected inside the feed inlet 2; the second synchronization mechanism 504 is fixedly connected to the outside of the drive shaft 501 and the driven shaft 505; the transmission cam 506 is fixedly installed on the top of the driven shaft 505.

[0033] The feeding assembly also includes a first connecting rod 507 and a second connecting rod 508. One end of the first connecting rod 507 is hinged to the front side of the transmission cam 506. One end of the second connecting rod 508 is fixedly installed on the outside of the separation plate 202, and the other end of the second connecting rod 508 is hinged to one end of the first connecting rod 507.

[0034] The specific usage and function of this embodiment are as follows:

[0035] When the excavated sludge enters the equipment through the top of the feed inlet 2, it is first subjected to preliminary crushing by the crushing roller 4. Through the rotation and compression of the crushing roller 4, impurities such as domestic waste and stones carried in the sludge are broken down into smaller particles, effectively reducing the risk of clogging. The crushed material then falls onto the surface of the separation plate 202, where the sieve structure of the separation plate 202 achieves particle screening. Sludge and impurities that meet the size requirements fall through the sieve holes into the sludge conveyor 1, and after being conveyed, are discharged to the designated area through the discharge outlet 3.

[0036] During the sludge screening process, the drive motor 5 starts synchronously, driving the drive shaft 501 to rotate continuously. The drive shaft 501 achieves dual-function transmission through the first synchronization mechanism 502 and the second synchronization mechanism 504: Firstly, the first synchronization mechanism 502 drives multiple sets of scrapers 503 to reciprocate linearly along the guide groove 201, continuously cleaning large impurities retained on the surface of the separation plate 202 and pushing them to the side of the feed inlet 2 for discharge; secondly, the second synchronization mechanism 504 drives the driven shaft 505 to rotate, driving the transmission cam 506 to rotate eccentrically. Through the linkage mechanism composed of the first connecting rod 507 and the second connecting rod 508, the circular motion of the cam is converted into the horizontal reciprocating vibration of the separation plate 202, significantly improving the sludge screening efficiency and avoiding screen clogging.

[0037] Example 2:

[0038] Based on Example 1, such as Figures 1 to 6 As shown, it also includes a lifting component, which is disposed inside the lifting mechanism 6.

[0039] The lifting components include a return channel 601 and a lifting channel 602. The return channel 601 is fixedly installed on one side of the feed inlet 2 and on the outer side of the bottom of the lifting mechanism 6. The lifting channel 602 is fixedly installed on the outer side of the top of the lifting mechanism 6.

[0040] The lifting assembly also includes a lifting motor 603 and a conveying auger 604. The lifting motor 603 is fixedly installed on the top of the lifting mechanism 6; the conveying auger 604 is fixedly installed on the bottom of the lifting motor 603 and is rotatably connected inside the lifting mechanism 6.

[0041] The specific usage and function of this embodiment are as follows:

[0042] After the scraper 503 pushes the large impurities intercepted by the separation plate 202 to the side of the feed inlet 2, the impurities slide down through the return channel 601 to the bottom of the lifting mechanism 6 for temporary storage. At this time, the lifting motor 603 automatically starts, driving the conveying auger 604 to rotate at high speed. The conveying auger 604, through the principle of spiral conveying, vertically lifts the impurities at the bottom along the lifting channel 602 to the top of the feed inlet 2, and then feeds them back into the working area of ​​the crushing roller 4. Through this closed-loop processing flow, impurities that do not meet the size requirements will undergo a cycle of crushing-screening-lifting again until the particle size meets the conveying requirements, thereby achieving fine processing of impurities, ensuring the stability of equipment operation and the efficiency of sludge conveying, and preventing large impurities from affecting the sludge conveyor 1.

[0043] The following points should be noted in this article:

[0044] 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0045] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0046] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A sludge excavation and conveying device, characterized in that: The sludge excavation and conveying equipment includes a sludge conveyor (1), a feed inlet (2), a discharge outlet (3), a crushing roller (4), a drive motor (5), a lifting mechanism (6), a feeding assembly, and a lifting assembly. The feed inlet (2) is fixedly installed on the upper part of the sludge conveyor (1); the discharge outlet (3) is fixedly installed on the lower part of the sludge conveyor (1); the crushing roller (4) is installed on the upper part of the feed inlet (2); the drive motor (5) is bolted to the front side of the feed inlet (2); the lifting mechanism (6) is bolted to the outside of the feed inlet (2); the feeding assembly is located inside the feed inlet (2); and the lifting assembly is located inside the lifting mechanism (6).

2. The sludge excavation and conveying equipment as described in claim 1, characterized in that: The feeding assembly includes a guide groove (201) and a separation plate (202). The guide groove (201) is opened on both sides inside the feed inlet (2). The separation plate (202) is slidably connected to the inside of the feed inlet (2) in the horizontal direction.

3. The sludge excavation and conveying equipment as described in claim 2, characterized in that: The feeding assembly further includes: a drive shaft (501), a first synchronization mechanism (502), and a scraper (503). The drive shaft (501) is fixedly installed inside the drive motor (5) and is rotatably connected to the inside of the feed inlet (2). The first synchronization mechanism (502) is rotatably connected to the inside of the feed inlet (2) and is fixedly installed at the top of the drive shaft (501). Multiple sets of scrapers (503) are provided, and the multiple sets of scrapers (503) are arranged in a circumferential array outside the first synchronization mechanism (502). The two ends of the multiple sets of scrapers (503) are slidably connected inside the guide groove (201).

4. The sludge excavation and conveying equipment as described in claim 2, characterized in that: The feeding assembly further includes: a driven shaft (505), a second synchronization mechanism (504), and a transmission cam (506). The driven shaft (505) is rotatably connected inside the feed inlet (2). The second synchronization mechanism (504) is fixedly connected to the outside of the drive shaft (501) and the driven shaft (505) is fixedly connected to the outside of the driven shaft (505). The transmission cam (506) is fixedly installed on the top of the driven shaft (505).

5. The sludge excavation and conveying equipment as described in claim 2, characterized in that: The feeding assembly further includes a first connecting rod (507) and a second connecting rod (508), one end of the first connecting rod (507) being hinged to the front side of the transmission cam (506); one end of the second connecting rod (508) being fixedly installed on the outside of the separator plate (202), and the other end of the second connecting rod (508) being hinged to one end of the first connecting rod (507).

6. The sludge excavation and conveying equipment as described in claim 1, characterized in that: The lifting assembly includes a return channel (601) and a lifting channel (602). The return channel (601) is fixedly installed on one side of the feed inlet (2) and the return channel (601) is fixedly installed on the outer side of the bottom of the lifting mechanism (6). The lifting channel (602) is fixedly installed on the outer side of the top of the lifting mechanism (6).

7. The sludge excavation and conveying equipment as described in claim 6, characterized in that: The lifting assembly also includes a lifting motor (603) and a conveying auger (604). The lifting motor (603) is fixedly installed on the top of the lifting mechanism (6). The conveying auger (604) is fixedly installed on the bottom of the lifting motor (603) and is rotatably connected inside the lifting mechanism (6).

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