CN219167933U

CN219167933U - Wet dedusting slag water recovery system for acetylene dry slag bin

Info

Publication number: CN219167933U
Application number: CN202223572881.3U
Authority: CN
Inventors: 邓伟; 梁亚林; 梁宝仓; 师文涛; 安明哲; 康明
Original assignee: Shaanxi Heimao Coking Co ltd
Current assignee: Shaanxi Heimao Coking Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-13
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of acetylene preparation processes, in particular to a wet dedusting slag water recovery system of an acetylene dry slag bin, which comprises a wet deduster, a water return pipeline and a slag water buffer tank which are sequentially communicated, and further comprises a sedimentation buffer tank, wherein the sedimentation buffer tank is positioned between a liquid outlet end of the wet deduster and an inlet of the water return pipeline, and an outlet of the water return pipeline is connected with an inlet of the slag water buffer tank. According to the utility model, the sedimentation buffer tank and the filtering device are additionally arranged between the wet dust collector at the top of the dry slag bin and the water return pipeline, so that slag water containing a large amount of carbide slag is firstly precipitated and filtered in the sedimentation buffer tank before entering the water return pipeline, the problem that the wall of the water return pipeline is scaled and even the water return pipeline is blocked is solved, the content of carbide slag in water return is reduced, the process requirement can be met, the cost is saved, and the environmental pollution is avoided; and reduce the frequency of workman's clearance pipeline, reduce staff's amount of labour.

Description

Wet dedusting slag water recovery system for acetylene dry slag bin

Technical Field

The utility model belongs to the technical field of acetylene preparation processes, and particularly relates to a wet dedusting slag water recovery system of an acetylene dry slag bin.

Background

Currently, the industrial acetylene synthesis methods include hydrocarbon cracking and calcium carbide. In recent years, the production of acetylene by a calcium carbide method, which is a hydrolysis reaction of calcium carbide (CaC), has become a mainstream step by step ₂ ) And controlling a certain temperature with water in the generator to generate crude acetylene gas. The carbide slag formed after the calcium carbide reaction is placed in an acetylene dry slag bin, the emptying port of the acetylene dry slag bin is not subjected to dust removal treatment, and the air cannot be directly discharged, so that dust discharge exceeding pollution in the air can be caused by carbide slag dust, and the acetylene dry slag bin is required to be subjected to dust removal treatment in order to meet the environmental protection requirement.

The existing acetylene dry slag bin generally adopts a wet dust collector to carry out wet dust collection at the top of the dry slag bin, slag water generated after washing the wet dust collector flows out through a liquid outlet of the wet dust collector, flows into a slag water buffer tank through a return water pipeline to be collected, and then returns to a system to be recycled. In actual production, the slag water flows out from the bottom liquid outlet end of the wet dust collector in the top of the dry slag bin, and flows into the slag water buffer tank to be collected through the water return pipeline, and as a large amount of carbide slag (the main component is calcium hydroxide) contained in the slag water discharged by the wet dust collector in the top of the dry slag bin contacts with air, calcium carbonate generated by reaction is attached to the inner wall of the water return pipeline, so that the water return pipeline is often blocked, difficult to clean and the integral operation of equipment and a system is affected.

Disclosure of Invention

The utility model aims to provide a wet dedusting slag water recovery system of an acetylene dry slag bin, which aims to solve the problems that in the background art, calcium carbonate generated by the reaction after carbide slag in slag water discharged by a wet deduster at the top of the dry slag bin of the existing system contacts with air is attached to the inner wall of a water pipeline, so that the water pipeline is blocked, and the operation of equipment and the system is affected.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an acetylene dry slag storehouse wet dedusting sediment water recovery system, includes wet dust collector, return water pipeline and the sediment buffer tank of intercommunication in proper order, wet dust collector's spray end is located dry slag storehouse top, wet dust collector's play liquid end is located dry slag storehouse bottom, still includes sedimentation buffer tank, sedimentation buffer tank is located between wet dust collector's play liquid end and return water pipeline's the entry, return water pipeline's export and the entry linkage of sediment buffer tank.

Further, a manhole for dredging is arranged on the side wall of the sedimentation buffer tank.

Further, the device comprises a filtering device, wherein the filtering device is arranged between the sedimentation buffer tank and the water return pipeline, an inlet of the filtering device is communicated with a clear liquid outlet of the sedimentation buffer tank, and a clear liquid outlet of the filtering device is communicated with the water return pipeline.

Further, the sedimentation buffer tank is communicated with the filtering device through a clear liquid flow pipeline, and the clear liquid flow pipeline is integrally and obliquely arranged.

Further, the clear liquid flow pipeline is inclined at an angle of 15-30 degrees.

Further, a pump body is arranged on the clear liquid flowing pipeline.

Further, the clear liquid flowing pipeline is also provided with a regulating valve.

Further, a liquid level probe and a liquid level controller are arranged in the sedimentation buffer tank, the liquid level probe is electrically connected with the liquid level controller, and the liquid level controller controls the start and stop of the pump body and the opening of the regulating valve.

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

1. according to the wet dedusting slag water recovery system of the acetylene dry slag bin, provided by the utility model, the sedimentation buffer tank and the filtering device are additionally arranged between the wet deduster at the top of the dry slag bin and the water return pipeline, so that slag water containing a large amount of carbide slag is firstly precipitated and filtered in the sedimentation buffer tank before entering the water return pipeline, and then sediment in the sedimentation buffer tank and the filtering device is regularly cleaned, so that the problem that the water return pipeline is blocked due to scaling (calcium hydroxide) on the wall of the water return pipeline is solved, the process requirement is met, the cost is saved, the environmental pollution is avoided, the frequency of cleaning the pipeline by workers is reduced, and the labor capacity of workers is reduced.

2. The liquid level probe and the liquid level controller in the sedimentation buffer tank detect the liquid level in the sedimentation buffer tank, the pump body and the regulating valve are arranged on the clear liquid flow pipeline, the pump body provides the flowing power of the slag water, the flow does not depend on the gravity action of the slag water any more, the regulating valve regulates the outflow rate of the supernatant in the sedimentation buffer tank, and the autonomy and the stability of the system operation are improved.

Drawings

FIG. 1 is a block diagram of a system of the present utility model;

in the figure: 1. a wet dust collector; 2. a sedimentation buffer tank; 3. a filtering device; 4. a slag water buffer tank.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Example 1:

referring to fig. 1, an embodiment of the present utility model is provided: the utility model provides an acetylene dry slag storehouse wet dedusting sediment water recovery system, includes wet dust collector 1, sedimentation buffer tank 2, filter equipment 3, return water pipe and sediment water buffer tank 4 that communicate in proper order, and wet dust collector 1, sedimentation buffer tank 2, filter equipment 3, the level that sediment water buffer tank 4 set up reduces in proper order, and return water pipe slope sets up, and sediment water utilizes self gravity to flow.

The wet dust collector 1 is arranged at the top of the dry slag bin, the wet dust collector is a jacket structure arranged at the top of the dry slag bin, 10 spray heads are uniformly distributed at the top of the wet dust collector 1, industrial water is sprayed into the jacket structure from a plurality of spray heads of the wet dust collector 1 to wet dust the carbide slag, and then slag water flows out from a liquid outlet end at the bottom of the wet dust collector, which is part of the prior art and is not described herein.

The sedimentation buffer tank 2 is located between the liquid outlet end of the wet dust collector 1 and the inlet of the water return pipeline, the sedimentation buffer tank 2 is communicated with the wet dust collector 1 through a sealing component, in this embodiment, a flange is specifically used for preventing calcium carbonate from being generated by contact of carbide slag contained in slag water and air, slag water obtained after the carbide slag is washed enters the sedimentation buffer tank 2, and the carbide slag (the main component is calcium hydroxide) in the slag water is sedimentated by utilizing the self weight of the carbide slag.

The side wall of the top of the sedimentation buffer tank 2 is provided with a clear liquid flowing pipeline, the sedimentation buffer tank 2 is communicated with the filtering device 3 through the clear liquid flowing pipeline, the clear liquid flowing pipeline is integrally and obliquely arranged, the inclination angle of the clear liquid flowing pipeline is 15-30 degrees, after the solid impurities are settled in the sedimentation buffer tank 2 by the slag water, clear liquid at the upper part of the sedimentation buffer tank 2 flows out through the clear liquid flowing pipeline and flows into the filtering device 3 by gravity for filtering, the filtering device is preferably a precision filter, the filtered clear liquid enters the slag water buffer tank 4 from a clear liquid port of the precision filter, the slag water buffer tank 4 is communicated with a system through a return water pipeline, and a centrifugal pump arranged above the return water pipeline is used for conveying the recovered water back to the system for use; the staff regularly looks over the quantity of deposit in the settling cask, utilizes the manhole on the settling cask 2 lateral wall to clear up and maintain the deposit in the settling cask 2, clears up the filter residue in the precision filter simultaneously.

Example 2:

based on the above scheme, the second embodiment provided by the utility model is as follows: the utility model provides an acetylene dry slag storehouse wet dedusting sediment water recovery system, including wet dust collector 1 that communicates in proper order, subside buffer tank 2, filter equipment 3, sediment water buffer tank 4 and return water pipeline, with first difference of embodiment, in this embodiment between wet dust collector 1, subside buffer tank 2, filter equipment 3, sediment water buffer tank 4 and the return water pipeline setting do not receive the restriction of difference in height, wet dust collector 1, subside buffer tank 2, filter equipment 3, sediment water buffer tank 4 and return water pipeline's pipeline is last to set up the pump body, this embodiment sets up on clear liquid flow channel, the pump body provides the flow power of sediment water, no longer rely on the gravity effect of sediment water to flow.

Meanwhile, in order to monitor the liquid level in the sedimentation buffer tank 2, a liquid level probe is arranged inside the sedimentation buffer tank 2 to monitor the liquid level in the sedimentation buffer tank 2, a liquid level controller is arranged to control the start and stop of a pump body, the liquid level probe is electrically connected with the liquid level controller, a regulating valve is further arranged on a clear liquid flow pipeline, the liquid level controller simultaneously controls the opening of the regulating valve, and in the embodiment, the liquid level controller is preferably an MPM489 liquid level transmitter sold by Shanghai Shuangxu electronic limited company.

In summary, in the wet dedusting slag water recovery system of the acetylene dry slag bin, a sedimentation buffer tank and a filtering device are additionally arranged between the wet deduster and the water return pipeline, so that slag water containing a large amount of carbide slag is firstly precipitated and filtered in the sedimentation buffer tank before entering the water return pipeline, and then sediment in the sedimentation buffer tank and the filtering device is regularly cleaned, thereby improving the problem that the wall of the water return pipeline is scaled (calcium hydroxide) and even the water return pipeline is blocked, meeting the process requirements, saving the cost and avoiding the environmental pollution; and reduce the frequency of workman's clearance pipeline, reduce staff's amount of labour.

Claims

1. The utility model provides an acetylene dry slag storehouse wet dedusting sediment water recovery system, includes wet dust collector (1), return water pipeline and sediment water buffer tank (4) that communicate in proper order, the spray end of wet dust collector (1) is located dry slag storehouse top, the play liquid end of wet dust collector (1) is located dry slag storehouse bottom, its characterized in that: still include subside buffer tank (2), subside buffer tank (2) and be located between the entry of the play liquid end and the return water pipeline of wet flue dust collector (1), the export of return water pipeline is connected with the entry of sediment water buffer tank (4)).

2. The acetylene dry residue bin wet dust removal residue water recovery system of claim 1, wherein: the side wall of the sedimentation buffer tank (2) is provided with a manhole for dredging.

3. The acetylene dry residue bin wet dust removal residue water recovery system of claim 2, wherein: still include filter equipment (3), filter equipment (3) set up between sedimentation buffer tank (2) and return water pipeline, the entry of filter equipment (3) and the clear liquid export intercommunication of sedimentation buffer tank (2), the clear liquid export and the return water pipeline intercommunication of filter equipment (3).

4. The acetylene sludge bin wet dust removal sludge water recovery system according to claim 3, wherein: the sedimentation buffer tank (2) is communicated with the filtering device (3) through a clear liquid flow pipeline, and the clear liquid flow pipeline is integrally and obliquely arranged.

5. The acetylene sludge bin wet dust removal sludge water recovery system according to claim 4, wherein: the clear liquid flowing pipeline is inclined at an angle of 15-30 degrees.

6. The acetylene sludge bin wet dust removal sludge water recovery system according to claim 5, wherein: and a pump body is arranged on the clear liquid flowing pipeline.

7. The acetylene dry residue bin wet dust removal residue water recovery system of claim 6, wherein: and the clear liquid flowing pipeline is also provided with a regulating valve.

8. The acetylene dry residue bin wet dust removal residue water recovery system of claim 7, wherein: the sedimentation buffer tank (2) is internally provided with a liquid level probe and a liquid level controller, the liquid level probe is electrically connected with the liquid level controller, and the liquid level controller controls the start and stop of the pump body and the opening of the regulating valve.