Grading discharging device of thickener

Abstract

The utility model provides a grading discharging device of a thickener, which comprises a discharging frame and a liquid discharging pipe, the discharging frame is fixedly connected onto a support frame on the thickener, a discharging groove is arranged in the discharging frame, a feeding pipe is arranged on the thickener, a feeding end of the feeding pipe is positioned inside the discharging groove, and a discharging end of the liquid discharging pipe is positioned inside the discharging groove. A feeding hole connected with an external feeding device is formed in the feeding pipe; the discharging frame is fixedly connected to a discharging groove in the thickener, the internal gap of the discharging groove is filled with the discharging frame, the discharging groove is located below the discharging frame, the discharging frame is of an upper opening structure, a sieve plate is fixedly connected into the discharging frame and used for dividing the discharging frame into an upper cavity and a lower cavity, and a solid storage pipe extending up and down is fixedly connected to the middle of the sieve plate. According to the grading discharging device of the thickener, large solids can be separated from liquid during discharging, meanwhile, the large solids are collected in a unified mode, and the situation that the large solids are discharged along with concentrated liquid to enter a pipeline, and the pipeline is blocked or abraded is avoided.

Description

Technical Field

[0001] The utility model relates to environmental protection engineering, in particular to a grading and discharging device of a thickener. Background Art

[0002] The contents of environmental protection projects mainly include air pollution prevention and control projects, water pollution prevention and control projects, solid waste treatment and utilization projects, noise control projects, etc. Sewage and sludge need to be concentrated during treatment to clarify the sewage and concentrate the sludge. Concentrators are generally used to clarify sewage and concentrate sludge.

[0003] Existing concentrators generally concentrate solid particles in sewage and wastewater through gravity sedimentation, thereby separating clear liquid and high-concentration slurry. However, sewage and sludge are mixed with larger solids such as gravel, crushed ore and sewage debris. When the sludge and sewage are concentrated and discharged in a centralized manner, there is a lack of classification, resulting in solids being mixed in the produced concentrated slurry. After concentration, the concentrated slurry also increases the proportion of solids in the liquid, making it easy for solids to wear and clog the pipeline. Utility Model Content

[0004] In order to solve the problem in the background art that sludge and sewage lack classification when they are concentrated and discharged, the utility model proposes a classification discharge device for a thickener.

[0005] The technical solution of the utility model is: comprising a discharge rack and a liquid discharge pipe,

[0006] The discharge rack is fixedly connected to the support frame on the thickener, and a discharge trough is provided in the discharge rack. The thickener is provided with a feed pipe, the feed end of the feed pipe is located inside the discharge trough, and the feed pipe is provided with a feed port connected to an external feed device;

[0007] The discharge rack is fixedly connected to the discharge trough in the thickener, and the discharge rack fills the internal gap of the discharge trough. The discharge trough is located below the discharge rack. The discharge rack is an upper opening structure. A sieve plate is fixedly connected to the discharge rack, and the sieve plate is used to divide the discharge rack into an upper cavity and a lower cavity. A solid storage pipe extending up and down is fixedly connected to the middle of the sieve plate. The solid storage pipe extends downward and passes through the discharge rack. The lower end of the solid storage pipe is fixedly connected to a solid discharge pipe, and the solid discharge pipe is used to control the discharge of the solid storage pipe.

[0008] The discharging rack is fixedly connected with a liquid discharging pipe which is in communication with the interior of the lower cavity.

[0009] Preferably, the sieve plate is a funnel structure that is wide at the top and narrow at the bottom, and a discharge port that is transparent from top to bottom is provided at the lower end of the sieve plate, and a solid storage pipe is fixedly connected to the discharge port.

[0010] Preferably, a connecting rod extending up and down is provided in the discharge rack, the connecting rod extends upward into the support frame on the thickener and is transmission-connected to the drive device, and a stirring blade is fixedly connected to the lower part of the connecting rod, and the stirring blade is used to form a uniform flow in the suspension.

[0011] Preferably, the lower end of the connecting rod is fixedly connected to a stirring frame, and the stirring frame extends into the interior of the upper cavity.

[0012] Preferably, a dividing plate extending up and down is provided inside the discharge rack, the dividing plate is an arc-shaped structure with its opening facing right, and a gap is left between the left and right ends of the dividing plate and the inner wall of the discharge rack;

[0013] The dividing plate divides the discharge trough into a left cavity and a right cavity. The discharge end of the feed pipe is located inside the left cavity. The bottom of the right cavity is provided with a discharge avoidance port that is transparent from top to bottom, and the connecting rod passes through the discharge avoidance port.

[0014] Preferably, the solid discharge pipe is provided with a discharge valve, and the liquid discharge pipe is provided with a liquid discharge valve.

[0015] The advantages of the utility model are as follows: when in use, larger solids in the suspension can be separated by the sieve plate, and then uniformly collected through the solid storage pipe, so as to avoid the solids from being concentrated as the suspension is concentrated during use, thereby avoiding blockage or wear of the pipeline due to excessive proportion of larger solids in the suspension, and unified collection and discharge can be carried out, and it is convenient to modify the existing thickener. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0018] Figure 2 for Figure 1 Schematic diagram of the left-side sectional structure.

[0019] In the figure, 1 is a discharge rack, 101 is a discharge avoidance port, 2 is a connecting rod, 201 is a stirring rack, 3 is a stirring blade, 4 is a feed cavity, 5 is a discharge cavity, 6 is a dividing plate, 7 is a discharge rack, 701 is a screen plate, 702 is a solid storage pipe, 8 is a liquid discharge pipe, and 9 is a solid discharge pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: This example aims to provide a graded discharge device for a thickener.

[0022] according to Figures 1 to 2 As shown, it includes a discharge rack 1 and a liquid discharge pipe 8.

[0023] In this embodiment, the thickener is a thickener in the prior art, which consists of a trough body, a discharge device and a support frame. The support frame is arranged on the top of the trough body, and a basic platform is provided on the support frame. The basic platform is provided with a drive device and a control system.

[0024] The discharge rack 1 is fixedly connected to the support frame on the thickener. A discharge trough is provided in the discharge rack 1. The thickener is provided with a feed pipe. The feed end of the feed pipe is located inside the discharge trough. The feed pipe is provided with a feed port connected to an external feeding device. The external feeding device feeds sewage, sludge and other suspensions into the inside of the discharge trough through the feed pipe.

[0025] A connecting rod 2 extending up and down is provided in the discharge rack 1. The connecting rod 2 extends upward and extends into the support frame on the thickener to be connected to the drive device. A stirring blade 3 is fixedly connected to the lower part of the connecting rod 2. The stirring blade 3 is used to form a uniform flow in the suspension.

[0026] A dividing plate 6 extending up and down is provided inside the discharge rack 1. The dividing plate 6 is an arc-shaped structure with its opening facing right. There is a gap between the left and right ends of the dividing plate 6 and the inner wall of the discharge rack 1. The dividing plate 6 divides the discharge trough into a left cavity and a right cavity. The discharge end of the feed pipe is located inside the left cavity. A discharge avoidance port 101 which is transparent from top to bottom is provided at the bottom of the right cavity, and the connecting rod 2 passes through the discharge avoidance port.

[0027] The sewage or sludge hits the distributor plate 6 , so that the sewage or sludge discharged from the feed pipe is dispersed and then flows out from the discharge avoidance port 101 , thereby preventing the sewage or sludge from directly impacting the connecting rod 2 .

[0028] The discharge rack 7 is fixedly connected to the discharge trough in the thickener, and the discharge rack 7 fills the internal gap of the discharge trough. The discharge trough is located below the discharge rack 1. The discharge rack 7 is an upper opening structure. A sieve plate 701 is fixedly connected to the discharge rack 7. The sieve plate 701 is used to divide the discharge rack 7 into an upper cavity and a lower cavity. The sieve plate 701 is a funnel structure that is wide at the top and narrow at the bottom. The sieve plate 701 is provided with sieve holes, and solid particles and liquid in the suspension can pass through the sieve holes. The lower end of the sieve plate 701 is provided with a discharge port that is transparent up and down. A solid storage pipe 702 extending up and down is fixedly connected to the discharge port. The solid storage pipe 702 extends downward to pass through the discharge rack 7. The lower end of the solid storage pipe 702 is fixedly connected to a solid discharge pipe 9. The solid discharge pipe 9 is provided with a discharge valve. In this embodiment, the discharge valve is a plug valve.

[0029] The lower end of the connecting rod 2 is fixedly connected to a stirring frame 201, which extends into the interior of the upper cavity. The stirring frame 201 is provided with stirring blades. The stirring frame 201 is used to stir the suspension entering the discharge frame 7 to prevent the solids in the suspension from being concentrated and precipitated in the discharge frame 7, thereby avoiding clogging of the discharge frame 7.

[0030] A liquid discharge pipe 8 communicating with the interior of the lower cavity is fixedly connected to the discharge rack 7 . A liquid discharge valve is provided on the liquid discharge pipe 8 . A ball valve is selected as the liquid discharge valve in this embodiment.

[0031] Working principle: The suspension is fed into the discharge rack 1 through the feed pipe, and flows out from the discharge outlet after being dispersed. The liquid material fills the tank body, and the solid particles of the suspension settle to the bottom of the tank body under the action of gravity, and the clear liquid on the suspension overflows from the top of the tank body.

[0032] During sedimentation, the connecting rod 2 is driven to rotate by the driving device on the base platform, and the rotation of the connecting rod 2 drives the stirring blade 3 to rotate. The stirring blade 3 forms a uniform flow at the bottom of the suspension, so that the suspension maintains a certain fluidity, avoids the bottom liquid from becoming too thick, and reduces dead corners.

[0033] Part of the bottom suspension flows into the discharge rack 7, and the stirring rack 201 in the discharge rack 7 rotates driven by the connecting rod 2, causing the solid particles in the suspension to flow. The larger solids in the suspension slide down along the sieve plate 701 and fall into the solid storage pipe 702. The liquid and solid particles in the suspension pass through the sieve plate 701 and flow into the lower cavity. The suspension entering the lower cavity is sent out through the liquid discharge pipe 8.

[0034] The solids accumulate in the solid storage pipe 702 and are collected centrally by opening the discharge valve on the solid discharge pipe 9 .

[0035] In this way, larger solids in the suspension can be separated during discharge, preventing the proportion of larger solids in the concentrated suspension from increasing due to the concentration of the liquid, thereby preventing the larger solids from clogging or wearing the pipeline after aggregation. At the same time, the separated larger solids can be quickly collected. At the same time, only part of the thickener mechanism is modified, and the remaining mechanisms adopt the thickener structure design in the existing technology, which is convenient for modifying the existing thickener.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A grading and discharging device for a thickener, characterized by: It includes a discharge rack (1) and a liquid discharge pipe (8), The discharge rack (1) is fixedly connected to the support frame on the thickener, and a discharge trough is provided in the discharge rack (1). The thickener is provided with a feed pipe, the feed end of the feed pipe is located inside the discharge trough, and the feed pipe is provided with a feed port connected to an external feed device; The discharge rack (7) is fixedly connected to the discharge trough in the thickener, and the discharge rack (7) fills the internal space of the discharge trough. The discharge trough is located below the discharge rack (1). The discharge rack (7) is an upper opening structure. A sieve plate (701) is fixedly connected to the discharge rack (7). The sieve plate (701) is used to divide the discharge rack (7) into an upper cavity and a lower cavity. A solid storage pipe (702) extending upward and downward is fixedly connected to the middle of the sieve plate (701). The solid storage pipe (702) extends downward and passes through the discharge rack (7). The lower end of the solid storage pipe (702) is fixedly connected to a solid discharge pipe (9). The solid discharge pipe (9) is used to control the discharge of the solid storage pipe (702). A liquid discharge pipe (8) communicating with the interior of the lower cavity is fixedly connected to the discharge rack (7).

2. A thickener grading and discharging device according to claim 1, characterized in that: The sieve plate (701) is a funnel structure that is wide at the top and narrow at the bottom. A discharge port that is transparent from top to bottom is provided at the lower end of the sieve plate (701), and a solid storage pipe (702) is fixedly connected to the discharge port.

3. The grading and discharging device of a thickener according to claim 1, characterized in that: A connecting rod (2) extending up and down is provided in the discharge frame (1), the connecting rod (2) extending upward and extending into the support frame on the thickener and being transmission-connected to the driving device, and a stirring blade (3) is fixedly connected to the lower part of the connecting rod (2), and the stirring blade (3) is used to form a uniform flow in the suspension.

4. A thickener grading and discharging device according to claim 3, characterized in that: The lower end of the connecting rod (2) is fixedly connected to a stirring frame (201), and the stirring frame (201) extends into the interior of the upper cavity.

5. The grading and discharging device of a thickener according to claim 1, characterized in that: The discharge rack (1) is provided with a dividing plate (6) extending up and down. The dividing plate (6) is an arc-shaped structure with its opening facing right. A gap is left between the left and right ends of the dividing plate (6) and the inner wall of the discharge rack (1). The dividing plate (6) divides the discharge trough into a left cavity and a right cavity. The discharge end of the feed pipe is located inside the left cavity. The bottom of the right cavity is provided with a discharge avoidance opening (101) that is transparent from top to bottom. The connecting rod (2) passes through the discharge avoidance opening.

6. The grading and discharging device of a thickener according to claim 1, characterized in that: The solid discharge pipe (9) is provided with a discharge valve, and the liquid discharge pipe (8) is provided with a liquid discharge valve.

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