Waste incineration boiler deslagging water recycling system

Abstract

The utility model discloses a waste incineration boiler deslagging water recycling system which comprises a slag pool and sewage pool, one end of the slag pool and sewage pool is connected with an acid sulfate solution preparation tank through a first pipeline, the other end of the slag pool and sewage pool is connected with an industrial wastewater collection pool through a second pipeline, and a slag conveyor is arranged on one side of the slag pool and sewage pool. A slag-water separation vibration machine is further arranged on one side of the slag conveyor, is connected with a clean slag collecting bin through a conveying belt and is connected with an industrial wastewater collecting pool through a recycling pipeline, and the industrial wastewater collecting pool is connected with a water pool for a deacidification slurry preparation system through a third pipeline; the water tank for the deacidification slurry preparation system is connected with the deacidification slurry preparation tank through a fourth pipeline, the deacidification slurry preparation tank is connected with the industrial wastewater collection tank through a fifth pipeline and is connected with the deacidification tower through a sixth pipeline, and the deacidification tower is connected with the ash tank. According to the utility model, sewage can be recycled, so that the waste of water resources is avoided, and meanwhile, untreated sewage can be prevented from polluting the environment.

Description

Technical Field

[0001] This utility model relates to a recycling system, and more particularly to a waste incineration boiler slag removal water recycling system. Background Art

[0002] The slag from waste-to-energy plants needs to be purified in slag pits and wastewater ponds to enable recycling and resource conservation. However, the wastewater in these ponds is alkaline and contains heavy metals; direct discharge would harm the environment. Furthermore, after the slag is removed from the wastewater ponds by a slag remover, some wastewater is carried along with it during transport. If this water is not treated, it will pollute the equipment and environment. Current technologies for slag dehumidification use slag bins with water separation plates to recover the wastewater, but this method is ineffective, resulting in high water content in the discharged slag. This water also pollutes roads during transport, causing serious pollution and water waste. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the problems of the prior art and provide a waste incineration boiler slag removal water recycling system that can recycle wastewater and recover the wastewater carried out of the slag pool and wastewater pool with the purified slag.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A waste incineration boiler slag removal water recycling system includes a slag pool and a wastewater pool. One end of the slag pool and wastewater pool is connected to an acidic sulfate solution preparation tank via a first pipe, and the other end is connected to an industrial wastewater collection pool via a second pipe and a return pipe.

[0006] An acidic sulfate solution preparation tank is filled with an acidic sulfate solution. The acidic sulfate solution in the preparation tank flows to the slag pool wastewater pool through a first pipe. The slag pool wastewater pool is used to soak the incinerated slag. The wastewater in the slag pool wastewater pool after soaking the slag has an alkaline pH and contains heavy metals. The acidic sulfate solution is used to neutralize the alkalinity of the wastewater and precipitate the heavy metals. The first pipe is equipped with a first electric regulating valve to control the flow rate of the acidic sulfate solution, so as to control the proportion of the acidic sulfate solution and fully neutralize it with the wastewater to purify the slag.

[0007] A slag removal machine is installed on one side of the slag pool and the wastewater pool. A slag-water separation vibrator is also installed on one side of the slag removal machine. A conveyor belt is installed at the lower end of the slag-water separation vibrator. A clean slag collection bin is installed at the other end of the conveyor belt. The slag-water separation vibrator is connected to the industrial wastewater collection pool through a recycling pipe.

[0008] The slag-water separation vibratory machine includes a vibrating screen and a water collection bin. The water collection bin is located below the vibrating screen. The neutralized slag is scooped out by a slag remover and placed on the vibrating screen of the slag-water separation vibratory machine. The slag is then vibrated to remove water. The water removed by the vibration flows through the screen holes on the vibrating screen to the water collection bin, preventing excess water from being carried away with the slag. The slag-water separation vibratory machine can not only collect water from the slag in the water collection bin, but also use vibration to turn the slag over, further collecting the wastewater. The dewatered slag is transported by conveyor belt to the clean slag collection bin for later waste recycling.

[0009] The outlet of the moisture collection chamber is provided with the recovery pipe, which includes a first hard pipe, a second hard pipe and a soft pipe. One end of the first hard pipe is connected to the outlet of the moisture collection chamber, and the other end is connected to the second hard pipe through the soft pipe. A limit block is provided around the second hard pipe.

[0010] The slag-water separation vibrator uses vibration to remove water from the purified slag. Therefore, the first rigid pipe connected to it also vibrates. A flexible pipe is connected below the first rigid pipe to dampen the vibration. The second rigid pipe below the flexible pipe is fixed in the limiting groove on the upper inner side of the industrial wastewater collection tank by the limiting block on it. This facilitates the flow of collected sewage into the industrial wastewater collection tank without causing damage to the industrial wastewater collection tank due to vibration.

[0011] The second pipe and the second rigid pipe are respectively equipped with a second electric regulating valve and a seventh electric regulating valve to control the flow of sewage; this facilitates the quantitative release of sewage into the industrial wastewater collection tank. The industrial wastewater in the industrial wastewater collection tank flows to the slag pool sewage tank through the return pipe for soaking the slag in the slag pool sewage tank. The return pipe is equipped with an eighth electric regulating valve to control the flow of industrial wastewater.

[0012] The industrial wastewater collection tank is connected to the water tank of the deacidification slurry preparation system via a third pipe, and a third electric regulating valve is installed on the third pipe to control the flow rate of the industrial wastewater. The water tank of the deacidification slurry preparation system is connected to the deacidification slurry preparation tank via a fourth pipe, and a fourth electric regulating valve is installed on the fourth pipe to control the flow rate of the water used for deacidification slurry preparation. The deacidification slurry preparation tank is connected to the industrial wastewater collection tank via a fifth pipe and to the deacidification tower via a sixth pipe, and a fifth electric regulating valve and a sixth electric regulating valve are respectively installed on the fifth and sixth pipes to control the flow rate of the deacidification slurry. The deacidification tower is connected to the ash tank.

[0013] The deacidification slurry preparation tank is filled with deacidification slurry. A certain amount of deacidification slurry is added to the industrial wastewater collection tank through the fifth pipe, which can purify the industrial wastewater and enable the purified industrial wastewater to be recycled. The purified industrial wastewater is sent to the water tank of the deacidification slurry preparation system through the third pipe for backup water use.

[0014] The deacidification slurry preparation system uses spare water from the water tank to flow through the fourth pipe to the deacidification slurry preparation tank to prepare deacidification slurry. Part of the prepared deacidification slurry flows through the fifth pipe to the industrial wastewater collection tank to purify industrial wastewater, and part flows to the deacidification tower to participate in the deacidification tower reaction. After the reaction, the pollutants in the slag pool water and the deacidification products are sealed in the ash tank.

[0015] The beneficial effects of the utility model are:

[0016] 1. In this utility model, the wastewater that has been soaked in slag is neutralized and deacidified by acidic sulfate solution and deacidification solution. On the one hand, it can flow back to the slag pool wastewater pool through the return pipe for soaking the slag in the slag pool wastewater pool. On the other hand, it can be reserved for the water in the deacidification slurry preparation system, which facilitates the production of deacidification solution. The deacidification solution is also the raw material for deacidifying the wastewater that has been soaked in slag. This kind of recycling avoids wasting water resources and also avoids environmental pollution from untreated wastewater.

[0017] 2. The use of the slag-water separation vibrating machine in this utility model can turn the slag on the vibrating screen, fully separate and collect the water on the slag, prevent excess water from being transferred out with the slag, and avoid environmental pollution.

[0018] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some schematic diagrams of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a system block diagram of a waste incineration boiler slag removal water recycling system according to the present invention.

[0021] 1-First pipe, 2-Second pipe, 3-Third pipe, 4-Fourth pipe, 5-Fifth pipe, 6-Sixth pipe, 7-Recovery pipe, 8-First electric regulating valve, 9-Second electric regulating valve, 10-Third electric regulating valve, 11-Fourth electric regulating valve, 12-Fifth electric regulating valve, 13-Sixth electric regulating valve, 14-Seventh electric regulating valve. DETAILED DESCRIPTION

[0022] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0025] Example: Figure 1 As shown, a waste incineration boiler slag removal water recycling system includes a slag pool and a wastewater pool. One end of the slag pool and wastewater pool is connected to an acidic sulfate solution preparation tank through a first pipe 1, and the other end is connected to an industrial wastewater collection pool through a second pipe 2 and a return pipe 15.

[0026] A slag remover is installed on one side of the slag pool and the wastewater pool. A slag-water separation vibrator is also installed on the other side of the slag remover. A conveyor belt is installed at the lower end of the slag-water separation vibrator. A clean slag collection bin is installed at the other end of the conveyor belt. The slag-water separation vibrator is connected to the industrial wastewater collection pool through the recovery pipe 7.

[0027] The slag-water separation vibrating machine includes a vibrating screen and a water collection chamber. The water collection chamber is located below the vibrating screen. A recovery pipe 7 is provided at the outlet of the water collection chamber. The recovery pipe 7 includes a first hard pipe, a second hard pipe, and a soft pipe. One end of the first hard pipe is connected to the outlet of the water collection chamber, and the other end is connected to the second hard pipe through the soft pipe. A limit block is provided around the second hard pipe.

[0028] A limiting groove is provided on the upper inner side of the industrial wastewater collection tank, and the second rigid pipe is fixed in the limiting groove on the upper inner side of the industrial wastewater collection tank by the limiting block on it.

[0029] The industrial wastewater collection tank is connected to the deacidification slurry preparation system water tank through the third pipe 3. The deacidification slurry preparation system water tank is connected to the deacidification slurry preparation tank through the fourth pipe 4. The deacidification slurry preparation tank is connected to the industrial wastewater collection tank through the fifth pipe 5 and to the deacidification tower through the sixth pipe 6. The deacidification tower is connected to the ash tank.

[0030] The first pipeline 1 is equipped with a first electric regulating valve 8 to control the flow rate of acidic sulfate solution; the second pipeline 2 and the second rigid pipeline are respectively equipped with a second electric regulating valve 9 and a seventh electric regulating valve 14 to control the flow rate of sewage; the third pipeline 3 is equipped with a third electric regulating valve 10 to control the flow rate of industrial wastewater; the fourth pipeline 4 is equipped with a fourth electric regulating valve 11 to control the flow rate of water used for preparing deacidification slurry; the fifth pipeline 5 and the sixth pipeline 6 are respectively equipped with a fifth electric regulating valve 12 and a sixth electric regulating valve 13 to control the flow rate of deacidification slurry; and the return pipeline 15 is equipped with an eighth electric regulating valve 16 to control the flow rate of industrial wastewater.

[0031] During operation, the incinerated slag is placed into the slag pool and wastewater tank. An acidic sulfate solution is introduced into the slag pool and wastewater tank via the first pipe 1 for neutralization and precipitation of heavy metals. A slag remover is used to remove the purified slag. The removed slag is placed on a vibrating screen of a slag-water separator. The vibrating screen removes water from the removed slag. The water flows through the screen holes to a water collection bin, and then through a recovery pipe 7 on the water collection bin, the wastewater is returned to the industrial wastewater collection tank. The wastewater in the slag pool and wastewater flows through the second pipe 2 to the industrial wastewater collection tank. Part of the deacidification slurry is discharged from the pool through the fifth pipe 5 to purify the industrial wastewater. The purified industrial wastewater flows to the slag pool and sewage pool through the return pipe for soaking the slag in the slag pool and sewage pool. On the other hand, it flows to the water pool of the deacidification slurry preparation system through the third pipe 3. When the deacidification slurry is prepared as backup water, the backup water for deacidification slurry preparation flows to the deacidification slurry preparation tank through the fourth pipe 4 for deacidification slurry preparation. The prepared deacidification slurry can be used for the purification of industrial wastewater and can also be used for reaction in the deacidification tower. It participates in the deacidification tower reaction. After the reaction, the pollutants in the slag pool water and the deacidification products are sealed in the ash tank.

[0032] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A waste incineration boiler slag removal water recycling system, comprising a slag pool and a wastewater pool, characterized in that: One end of the slag and wastewater pool is connected to the acidic sulfate solution preparation tank via a first pipe, and the other end is connected to the industrial wastewater collection pool via a second pipe and a return pipe. A slag removal machine is installed on one side of the slag and wastewater pool, and a slag-water separation vibrator is also installed on the slag removal side. A conveyor belt is installed at the lower end of the slag-water separation vibrator, and a clean slag collection bin is installed at the other end of the conveyor belt. The slag-water separation vibrator is connected to the industrial wastewater collection pool via a recovery pipe. The industrial wastewater collection pool is connected to the deacidification slurry preparation system water tank via a third pipe. The deacidification slurry preparation system water tank is connected to the deacidification slurry preparation tank via a fourth pipe. The deacidification slurry preparation tank is connected to the industrial wastewater collection pool via a fifth pipe and to the deacidification tower via a sixth pipe. The deacidification tower is connected to the ash tank.

2. The waste incineration boiler slag removal water recycling system according to claim 1, characterized in that: The slag-water separation vibrating machine includes a vibrating screen and a water collection chamber. The water collection chamber is located below the vibrating screen. A recovery pipe is provided at the outlet of the water collection chamber. The recovery pipe includes a first hard pipe, a second hard pipe, and a soft pipe. One end of the first hard pipe is connected to the outlet of the water collection chamber, and the other end is connected to the second hard pipe through the soft pipe. A limit block is provided around the second hard pipe.

3. A waste incineration boiler slag removal water recycling system according to claim 2, characterized in that: The upper inner side of the industrial wastewater collection tank is provided with a limiting groove that matches the second rigid pipe with the limiting block.

4. A waste incineration boiler slag removal water recycling system according to claim 2 or 3, characterized in that: The first pipeline is equipped with a first electrically controlled regulating valve to control the flow rate of the acidic sulfate solution; the second pipeline and the second rigid pipeline are respectively equipped with a second electrically controlled regulating valve and a seventh electrically controlled regulating valve to control the flow rate of wastewater; the third pipeline is equipped with a third electrically controlled regulating valve to control the flow rate of industrial wastewater; the fourth pipeline is equipped with a fourth electrically controlled regulating valve to control the flow rate of water used for preparing deacidification slurry; the fifth pipeline and the sixth pipeline are respectively equipped with a fifth electrically controlled regulating valve and a sixth electrically controlled regulating valve to control the flow rate of deacidification slurry; and the return pipeline is equipped with an eighth electrically controlled regulating valve to control the flow rate of industrial wastewater.

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