Sludge deep dehydration pretreatment equipment

Abstract

The utility model relates to the field of sludge dewatering, and discloses sludge deep dewatering pretreatment equipment which comprises a tank body fixedly installed among a plurality of supporting frames, one side of the tank body is communicated with a sludge feeding pipe, the center position of the bottom end of the tank body is communicated with a sludge discharging pipe, and a booster pump is fixedly installed at the top end of the supporting frame on one side of the tank body. One end of the booster pump is communicated with one end of the chemical inlet pipe, a chemical distribution component is arranged in the tank body along the vertical direction, the other end of the booster pump is communicated with one end of the chemical distribution component through a pipeline, and the equipment disclosed by the utility model is convenient for promoting the quicker and more sufficient contact of added chemicals and sludge, so that the pretreatment efficiency of the sludge is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of sludge dewatering, in particular to a sludge deep dewatering pretreatment equipment. BACKGROUND

[0002] With the acceleration of industrialization, more and more industries have emerged, which also means more wastewater. Since the traditional biological method has the dual advantages of effect and economy, it is widely used in wastewater treatment process. However, the disposal of sludge has become a major difficulty for biological methods. At present, the main methods for treating sludge include flocculation pressing combined with low-temperature cold drying technology and adding lime conditioning and pressing. The main problem is that the operation cost is high and it is easy to cause secondary pollution. In order to solve the problems existing in sludge treatment, the reasonable pretreatment method can highlight its advantages in economy and environment. At present, there is little research on sludge chemical pretreatment, including the design of reactor and the preparation of reaction reagent. The design of the pretreatment reactor determines the degree of material reaction, which is a direct factor reflecting the effect of low-pressure filter pressing. Therefore, the design of the reactor has become an important part of the sludge dewatering system.

[0003] The utility model discloses a kind of sludge deep dewatering pretreatment equipment, including support seat and the tank body on support seat, the tank body bottom is discharged, the tank body upper portion one side is discharged, and the other side is added to the mouth, the discharge, feed inlet and dosing port are respectively installed with valve, the tank body top is equipped with the pressure reducing valve being communicated with tank body, the tank body inner bottom is provided with annular aeration main pipe, aeration main pipe center is equipped with connector, connector top is connected with gas supply pipe, the connector outer wall and aeration main pipe inner wall between are equipped with several aeration branch pipes, several aeration branch pipes are annularly distributed around connector center, several evenly distributed aeration micropores are opened on aeration main pipe and aeration branch pipe. The utility model is simple in structure, reasonable in design, good in sludge pretreatment effect, without secondary pollution, and energy consumption is lower.

[0004] The above-mentioned utility model equipment is provided with annular aeration pipe to promote the sufficient contact of sludge and added reagent, improve sludge pretreatment effect, however, its reagent is directly put into the inside of tank body through dosing port, and the sludge on the top of tank body is accumulated after reagent is added, so that the sludge far from dosing port direction in tank body cannot be contacted with added reagent in time and sufficiently, resulting in the reduction of sludge pretreatment efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of sludge deep dewatering pretreatment equipment to solve the problems raised in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a sludge deep dewatering pretreatment equipment, including the jar body of fixed installation between a plurality of support frame, the jar body side is connected with sludge feed pipe, and the jar body bottom center position is connected with sludge discharge pipe, the support frame top of jar body side is fixed with booster pump of installation, and booster pump one end communicates with the one end of feed pipe, the inside of jar body is provided with the medicine distribution subassembly along the vertical direction, and the other end of booster pump communicates with the one end of medicine distribution subassembly through pipeline.

[0007] Preferably, the jar body is provided with an aeration pipe, and the top end of the aeration pipe is communicated with an external air source through a pipeline.

[0008] Preferably, the one end of the feed pipe away from the booster pump is communicated with one end of the pretreatment medicament storage box.

[0009] Preferably, the medicine distribution subassembly includes a medicine distribution vertical pipe arranged inside the jar body along the vertical direction, and the one end of the medicine distribution vertical pipe is communicated with the one end of the booster pump through a pipeline.

[0010] Preferably, the one side of the medicine distribution vertical pipe close to the center position of the jar body is communicated with a plurality of horizontally arranged medicine distribution barrels along the vertical direction, and the inner wall of each medicine distribution barrel is fixedly connected with a center positioning plate through a plurality of connecting rods.

[0011] Preferably, the one end of the center positioning plate away from the medicine distribution vertical pipe is fixedly connected with a telescopic rod, and the one end of the telescopic rod away from the center positioning plate is fixedly connected with a cover plate.

[0012] Preferably, the one side of the cover plate close to the telescopic rod is attached to one end of the medicine distribution barrel, and a spring is sleeved on the outer side of the telescopic rod, and the two ends of the spring are fixedly connected with the one end of the cover plate close to the medicine distribution vertical pipe and the one end of the center positioning plate away from the medicine distribution vertical pipe respectively.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The utility model discloses sludge is transported into the inside of jar body by sludge feed pipe, and the medicament is transported by the storage tank through the medicine inlet pipe and is pressurized by the booster pump after the working process, and the medicament is transported into the medicine distribution vertical pipe through the pipeline, so that the medicament in the medicine distribution vertical pipe enters the inside of each medicine distribution cylinder, and the medicament in the inside of the medicine distribution cylinder applies the thrust to the end of the cover plate and makes the cover plate displace towards the direction of being away from the medicine distribution cylinder, so that the medicament in the medicine distribution cylinder enters the sludge in the jar body, and the plurality of medicine distribution cylinders are distributed along the vertical direction, so that the sludge in the plurality of positions in the jar body can be contacted and mixed with the entering medicament more quickly at the same time, so as to improve the sludge pretreatment efficiency, after the medicament is added, the elasticity of the spring of the telescopic rod outside sleeve makes the cover plate reset and be attached to the end of the medicine distribution cylinder, avoids the sludge from entering the inside of the medicine distribution cylinder and causing the blockage, and the treated sludge is discharged through the sludge discharge pipe, the aeration pipe with the aeration hole is arranged, the sludge is treated through the aeration pipe and the outside air source, so that the mixing treatment efficiency of the sludge and the medicament is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structural schematic diagram of the utility model;

[0016] Fig. 2 It is the enlarged schematic diagram of the structure of the utility model A.

[0017] In the drawing: 1, support frame;2, jar body;3, booster pump;4, medicine inlet pipe;5, medicine distribution assembly;6, sludge feed pipe;7, sludge discharge pipe;8, aeration pipe;51, medicine distribution vertical pipe;52, medicine distribution cylinder;53, connecting rod;54, center positioning plate;55, telescopic rod;56, cover plate. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] Embodiment one

[0020] Please refer to Figs. 1-2 , a kind of sludge deep dehydration pretreatment equipment in the drawing, including the jar body 2 of fixed installation between several support frames 1, sludge feed pipe 6 is communicated in the side of jar body 2, and sludge discharge pipe 7 is communicated in the bottom center position of jar body 2, booster pump 3 is fixedly installed at the top of the support frame 1 in the side of jar body 2, and booster pump 3 one end is communicated with medicine inlet pipe 4 one end, medicine distribution assembly 5 is arranged along vertical direction in jar body 2, and booster pump 3 other end is communicated with medicine distribution assembly 5 one end by pipeline.

[0021] In the embodiment, the aeration pipe 8 is arranged in the tank body 2, and the top end of the aeration pipe 8 is communicated with the external air source through a pipeline. The far end of the medicine feeding pipe 4 from the booster pump 3 is communicated with one end of the pretreatment medicine storage tank. The medicine distribution assembly 5 comprises a medicine distribution vertical pipe 51 arranged in the tank body 2 in the vertical direction, and one end of the medicine distribution vertical pipe 51 is communicated with one end of the booster pump 3 through a pipeline. The side of the medicine distribution vertical pipe 51 close to the central position of the tank body 2 is communicated with a plurality of horizontally arranged medicine distribution barrels 52 in the vertical direction. The inner wall of each medicine distribution barrel 52 is fixedly connected with a central positioning plate 54 through a plurality of connecting rods 53. The central positioning plate 54 is fixedly connected with an extension rod 55 at the central position of the far end of the medicine distribution vertical pipe 51. The extension rod 55 is fixedly connected with a cover plate 56 at the end away from the central positioning plate 54. The side of the cover plate 56 close to the extension rod 55 is attached to one end of the medicine distribution barrel 52. A spring is sleeved on the outer side of the extension rod 55, and the two ends of the spring are fixedly connected with the cover plate 56 at the end close to the medicine distribution vertical pipe 51 and the central positioning plate 54 at the end away from the medicine distribution vertical pipe 51, respectively.

[0022] Further, the sludge is transported into the tank body 2 through the sludge feeding pipe 6. The medicine is transported from the storage tank through the medicine feeding pipe 4 and pressurized by the booster pump 3 during the working process of the booster pump 3, and then transported into the medicine distribution vertical pipe 51 through a pipeline, so as to enter the inside of each medicine distribution barrel 52 through the medicine distribution vertical pipe 51. The medicine in the inside of the medicine distribution barrel 52 applies a pushing force to the end of the cover plate 56, so that the cover plate 56 is displaced away from the medicine distribution barrel 52, so that the medicine in the medicine distribution barrel 52 enters the sludge in the tank body 2. The plurality of medicine distribution barrels 52 are distributed in the vertical direction, so as to ensure that the sludge in multiple positions in the tank body 2 can be contacted and mixed with the entering medicine more quickly at the same time, thereby improving the pretreatment efficiency of the sludge. After the medicine is added, the cover plate 56 is reset to be attached to one end of the medicine distribution barrel 52 by the elastic force of the spring sleeved on the outer side of the extension rod 55, so as to avoid the sludge from entering the inside of the medicine distribution barrel 52 to cause blockage. The treated sludge is discharged through the sludge discharge pipe 7. The aeration pipe 8 provided with aeration holes is communicated with the external air source to aerate the sludge, so as to further improve the mixing and treatment efficiency of the sludge and the medicine.

[0023] The working principle of the utility model is: sludge is transported into the inside of the tank body 2 by the sludge feeding pipe 6, the medicament is transported from the storage box through the medicine feeding pipe 4 and is pressurized by the booster pump 3 in the working process, and is transported into the medicine distribution vertical pipe 51 through the pipeline, so as to enter the inside of each medicine distribution cylinder 52 through the medicine distribution vertical pipe 51, the medicament in the inside of the medicine distribution cylinder 52 applies a pushing force to one end of the cover plate 56 to make the cover plate 56 displace towards the direction away from the medicine distribution cylinder 52, so as to make the medicament in the medicine distribution cylinder 52 enter the sludge in the tank body 2, the plurality of medicine distribution cylinders 52 are distributed along the vertical direction, so as to ensure that the sludge in multiple positions in the tank body 2 can be contacted and mixed with the entering medicament more rapidly at the same time, so as to improve the sludge pretreatment efficiency, after the medicament is added, the spring outside the telescopic rod 55 is reset to be attached to one end of the medicine distribution cylinder 52 by the elastic force of the spring, so as to avoid the sludge from entering the inside of the medicine distribution cylinder 52 to cause blockage, the treated sludge is discharged by the sludge discharge pipe 7, the aeration pipe 8 with the aeration hole is arranged, the sludge is treated by aeration by connecting the aeration pipe 8 with the outside air source, so as to further improve the mixing treatment efficiency of the sludge and the medicament.

[0024] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0025] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A sludge deep dehydration pretreatment device, comprising a tank body (2) fixedly mounted between a plurality of support frames (1), characterized in that: One side of the tank body (2) is connected to a sludge feed pipe (6), and the center position of the bottom end of the tank body (2) is connected to a sludge discharge pipe (7). A booster pump (3) is fixedly installed on the top of the support frame (1) on one side of the tank body (2), and one end of the booster pump (3) is connected to one end of the drug feed pipe (4). A drug dispensing assembly (5) is arranged in the vertical direction inside the tank body (2), and the other end of the booster pump (3) is connected to one end of the drug dispensing assembly (5) through a pipeline.

2. The sludge deep dehydration pretreatment equipment according to claim 1, characterized in that: An aeration pipe (8) is provided in the tank body (2), and the top end of the aeration pipe (8) is connected to an external air source through a pipeline.

3. The sludge deep dehydration pretreatment equipment according to claim 2, characterized in that: The end of the medicine inlet pipe (4) away from the booster pump (3) is connected to one end of the pretreatment agent storage box.

4. The sludge deep dehydration pretreatment equipment according to claim 3, characterized in that: The medicine dispensing assembly (5) comprises a medicine dispensing vertical pipe (51) vertically arranged inside the tank body (2), and one end of the medicine dispensing vertical pipe (51) is connected to one end of the booster pump (3) through a pipeline.

5. The sludge deep dehydration pretreatment equipment according to claim 4, characterized in that: The medicine dispensing vertical pipe (51) is connected to a plurality of horizontally arranged medicine dispensing cylinders (52) along the vertical direction on one side close to the center position of the tank body (2), and the inner wall of each medicine dispensing cylinder (52) is fixedly connected to a central positioning plate (54) via a plurality of connecting rods (53).

6. The sludge deep dehydration pretreatment equipment according to claim 5, characterized in that: The center positioning plate (54) is fixedly connected to a telescopic rod (55) at a center position of one end away from the medicine dispensing vertical tube (51), and the telescopic rod (55) is fixedly connected to a cover plate (56) at one end away from the center positioning plate (54).

7. The sludge deep dehydration pretreatment equipment according to claim 6, characterized in that: The cover plate (56) is fitted with one end of the medicine dispensing cylinder (52) on one side close to the telescopic rod (55), and a spring is sleeved on the outside of the telescopic rod (55), and the two ends of the spring are respectively fixedly connected to the end of the cover plate (56) close to the medicine dispensing vertical tube (51) and the end of the center positioning plate (54) away from the medicine dispensing vertical tube (51).

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