CN217584491U - Thermal power plant boiler bottom slag treatment device - Google Patents

Abstract

The utility model belongs to boiler slag field of handling, concretely relates to slag processing apparatus at bottom of thermal power plant's boiler, including cooling recovery unit, conveyer and reducing mechanism, cooling recovery unit, conveyer and reducing mechanism from left to right set gradually and fix, cooling recovery unit includes the cooler bin, the water receiving case, the collection box, the storage jar, the cold water storage cistern, storage box and sprinkler, cooler bin and water receiving case from the top down set gradually and fix, be provided with first coil pipe and second coil pipe in the collection box, water receiving case and first coil pipe one end intercommunication, the other end and the storage box intercommunication of first coil pipe, the one end and the cold water storage cistern intercommunication of second coil pipe, the other end and the storage jar intercommunication of second coil pipe. The utility model discloses a cooling recovery unit retrieves its heat, and the heat of retrieving can be used to industry hot water and life hot water, sprays the refrigerated water again to the boiler bottom sediment through sprinkler and makes its cooling, has the characteristics of retrieving heat, energy-concerving and environment-protective again.

Description

A thermal power plant boiler bottom slag treatment device

technical field

The utility model belongs to the field of boiler slag treatment, in particular to a boiler bottom slag treatment device in a thermal power plant.

Background technique

Coal slag, a kind of industrial solid waste, waste slag discharged from coal-fired power plants, industrial and civil boilers and other equipment, also known as slag, the main components are silica, alumina, iron oxide, calcium oxide, magnesium oxide, etc. Depending on the composition, it can be used to make cement, bricks and refractory materials, etc. Some can be used to produce alumina or to extract rare metals such as gallium and germanium. Therefore, boiler bottom slag needs to be recycled and treated in advance before participating in the extraction process.

However, the known thermal power plant boiler bottom slag treatment device does not have a heat recovery device. The temperature of the thermal power plant boiler is very high, and the boiler bottom slag that comes out has a temperature, which needs to be cooled and reprocessed. Traditionally, it is directly sprayed with water. But this heat is lost, resulting in a waste of energy.

SUMMARY OF THE INVENTION

In view of this, the purpose of this utility model is to provide a thermal power plant boiler bottom slag treatment device, aiming to solve the defect of heat loss in the boiler bottom slag treatment device in the prior art; the utility model recovers its heat through a cooling recovery device , the recovered heat can be used for industrial hot water and domestic hot water, and then the cooling water is sprayed to the bottom slag of the boiler through the spraying device to cool it down, which has the characteristics of heat recovery, energy saving and environmental protection.

In order to achieve the above object, the technical scheme adopted by the present utility model is as follows:

A boiler bottom slag processing device in a thermal power plant, comprising a cooling recovery device, a conveying device and a pulverizing device, the cooling recovery device, the conveying device and the pulverizing device are sequentially arranged and fixed from left to right, and the cooling recovery device includes a cooling box, A water receiving tank, a recovery box, a storage tank, a cold water tank, a storage box and a spraying device, the cooling box is provided with a discharge door, and the spraying device, the cooling box and the water receiving box are arranged and fixed in sequence from top to bottom, the said A drain hole is arranged between the cooling box and the water receiving box, the recovery box, the storage tank, the cold water tank and the storage box are all arranged on one side of the water receiving box, and the recovery box is provided with a first coil tube and a second coil tube , one end of the first coil pipe in the water receiving tank and the recovery tank is connected through a first drain pipe, the other end of the first coil pipe is connected with the storage tank through a second drain pipe, and one end of the second coil pipe is connected with The cold water tank is communicated through a third drain pipe, and the other end of the second coil is communicated with the storage tank through a fourth drain pipe.

Further, the spraying device includes a water pump, a water inlet pipe and a spray head, the input end of the water pump is set on the storage tank, the water inlet pipe is in a right-angle shape, and one end of the water inlet pipe is connected with the output end of the water pump, and the inlet end is connected to the output end of the water pump. The other end of the water pipe is erected above the cooling box and is provided with a spray head facing the cooling box.

Further, the first coil tube is arranged below the second coil tube.

Further, the conveying device includes a support frame, a rotating shaft, a drive motor and a conveying belt, one end of the support frame is set below the discharge door, and the other end of the support frame is set with a rotating shaft, and is set at the crusher. Above the device, a drive motor is provided at one end of the rotating shaft, and a conveying belt is provided outside the rotating shaft, and the conveying belt is rotatably matched with the rotating shaft.

Further, the pulverizing device includes a pulverizing box, a pulverizing shaft, a rotating motor, a filter screen and a receiving box, the pulverizing box is arranged below the support frame, a receiving box is arranged below the pulverizing box, and the inside of the pulverizing box is A pulverizing shaft is provided, one end of the pulverizing shaft is provided with a rotating motor, and a filter screen is also arranged inside the pulverizing box.

The beneficial effects of the present utility model:

The utility model relates to a boiler bottom slag processing device in a thermal power plant, which cools the boiler bottom slag by spraying cold water on it, and recovers its heat by a cooling recovery device, and the recovered heat can be used for industrial hot water and domestic hot water, The cooling water is sprayed to the boiler bottom slag again through the spraying device to make it cool down, heat can be recovered, energy saving and environmental protection; the utility model screens the crushed boiler bottom slag through the filter screen, and the smaller boiler bottom slag enters the receiving box, The larger boiler bottom slag remains on the screen for re-grinding.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of a kind of thermal power plant boiler bottom slag processing device of the present utility model;

Fig. 2 is the structural representation of the structure shown in Fig. 1;

Fig. 3 is the structural representation of the structure shown in Fig. 1;

Figure 4 is a side view of the structure shown in Figure 1;

FIG. 5 is a top view of the structure shown in FIG. 1 .

Detailed ways

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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the prior art, the thermal power plant boiler bottom slag treatment device does not have a heat recovery device, the temperature of the thermal power plant boiler is very high, and the boiler bottom slag that comes out has a temperature, which needs to be cooled and reprocessed. Traditionally, it is directly sprayed with water. But this heat is lost, resulting in a waste of energy.

In view of the above problems, the inventor of the present application provides a boiler bottom slag treatment device in a thermal power plant. The utility model recovers its heat through a cooling recovery device, and the recovered heat can be used for industrial hot water and domestic hot water, and then passed through a spraying device. The cooling water is sprayed to the bottom slag of the boiler again to cool it down, which has the characteristics of heat recovery, energy saving and environmental protection.

As shown in Figures 1-5, a thermal power plant boiler bottom slag treatment device includes a cooling recovery device 1, a conveying device 2 and a crushing device 3. The cooling recovery device 1, the conveying device 2 and the crushing device 3 are arranged in sequence from left to right and fixed.

The cooling and recovery device 1 includes a cooling box 101, a water receiving box 102, a recovery box 103, a storage tank 104, a cold water tank 105, a storage box 106 and a spray device 4. In order to clean the cooled boiler bottom slag, the cooling box 101 is provided with a The discharge door 107; the spraying device 4, the cooling box 101 and the water receiving box 102 are arranged and fixed in order from top to bottom, and a drainage hole 108 is provided between the cooling box 101 and the water receiving box 102, and the water used to cool the boiler bottom slag drains the boiler. When the heat of the bottom slag is taken away, it is discharged into the water receiving tank 102 through the drainage hole 108; The first coil and the second coil, the first coil is arranged below the second coil, the water receiving tank 102 and one end of the first coil in the recovery tank 103 are connected through the first drain pipe 111, and the first coil is The other end is communicated with the storage tank 106 through the second drain pipe 112 , one end of the second coil is communicated with the cold water tank 105 through the third drain pipe 113 , and the other end of the second coil is communicated with the storage tank 104 through the fourth drain pipe 114 The water in the water receiving tank 102 is discharged into the first coil through the first drain pipe 111, while the cold water in the cold water tank 105 flows into the second coil through the third drain pipe 113, and the cold water flowing into the second coil will drain the first coil. The heat of the hot water in the coil is taken away to form hot water. The hot water in the first coil is cooled and then discharged into the storage tank through the second drain pipe 112. The cold water in the second coil absorbs heat and becomes clean hot water through the first coil. The four drainage pipes 114 flow into the storage tank 104 and can be used for industrial hot water or domestic hot water, and the heat can be recovered, which can save energy and be environmentally friendly.

In order to recycle the cooled water in the storage tank 106, the spraying device 4 in the present invention includes a water pump 401, a water inlet pipe 402 and a spray head 403. The input end of the water pump 401 is set on the storage tank 106, and the water inlet 402 pipe It is a right angle, one end of the water inlet pipe 402 is connected to the output end of the water pump 401, and the other end of the water inlet pipe 402 is erected above the cooling box 101, and is provided with a spray head 403 facing the cooling box 101; The cooling water is drawn out, sent to the top of the cooling box 101 by the water inlet pipe 402, and then sprayed by the nozzle 403 to cool the boiler bottom slag.

In order to facilitate the transportation of boiler bottom slag, the conveying device 2 in the present invention includes a support frame 201, a rotating shaft 202, a drive motor 203 and a conveying belt 204. One end of the support frame 201 is arranged below the discharge door 107, and the support frame The other end of the 201 is provided with a rotating shaft 202, which is arranged above the pulverizing device 3. One end of the rotating shaft 202 is provided with a driving motor 203, and the outside of the rotating shaft 202 is provided with a transmission belt 204. The transmission belt 204 is rotatably matched with the rotating shaft 202. By opening the discharge door 107 provided on the cooling box 101, the cooled boiler bottom slag is moved to the conveyor belt 204, and the drive motor 203 is activated to drive the rotating shaft 202 to rotate, so that the conveyor belt 204 can be conveyed, and the boiler bottom slag can be transported. It is transported to the crushing device 3 for processing.

In order to facilitate pulverizing the boiler bottom slag, the pulverizing device 3 in the present invention includes a pulverizing box 301, a pulverizing shaft 302, a rotating motor 303, a filter screen 304 and a receiving box 305. A receiving box 305 is arranged below the box 301 , a pulverizing shaft 302 is arranged inside the pulverizing box 301 , a rotating motor 303 is arranged at one end of the pulverizing shaft 302 , and a filter screen 304 is also arranged inside the pulverizing box 301 . When the boiler bottom slag is transported by the conveyor belt 204 to the pulverizing box 301 and falls into the gaps of the multiple pulverizing shafts 302, the rotating motor 303 is started to drive the pulverizing shafts 302 to rotate. The shearing force is used to pulverize it, the pulverized boiler bottom slag enters the receiving box 305 through the filter screen 304, and the larger boiler bottom slag remains in the filter screen 304 to be pulverized again.

The working principle of the present utility model:

When in use, put the boiler bottom slag into the cooling box, spray cold water to it through the nozzle to cool it down, and the sprayed cold water will take away the heat of the boiler bottom slag to form hot water, which will be discharged into the water receiving tank through the drain hole. Then it is discharged into the first coil through the first drain pipe, and the cold water in the cold water tank flows into the second coil through the third drain pipe, and the cold water flowing into the second coil takes away the heat of the hot water in the first coil. Hot water is formed, the hot water in the first coil is cooled and then discharged into the storage tank through the second drain pipe, and the cold water in the second coil absorbs heat and becomes clean hot water and flows into the storage tank through the fourth drain pipe. It is used for industrial hot water or domestic hot water to recover heat, which can save energy and be environmentally friendly. The water that has been cooled in the storage tank is pumped out through the water pump, sent to the top of the cooling box by the water inlet pipe, and then sprayed by the nozzle to the bottom of the boiler. The slag is cooled down. After the boiler bottom slag is cooled down, the discharge door set on the cooling box is opened, and the cooled boiler bottom slag is moved to the conveyor belt. By starting the drive motor to drive the rotating shaft to rotate, the conveyor belt can be conveyed. The boiler bottom slag is transported to the crushing box for processing; when the boiler bottom slag is transported by the conveyor belt to the crushing box and falls into the gaps of multiple crushing shafts, the rotating motor is started to drive the crushing shafts to rotate, and the multiple crushing shafts rotate together to cooperate with each other. , generate shearing force on boiler bottom slag and pulverize it. The pulverized boiler bottom slag enters the receiving box through the filter screen, and the larger boiler bottom slag remains in the filter screen for re-pulverization.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (5)

1. a thermal power plant boiler bottom slag treatment device, comprising a cooling recovery device, a conveying device and a pulverizing device, and the cooling recovery device, the conveying device and the pulverizing device are sequentially arranged and fixed from left to right, and it is characterized in that, the cooling The recovery device includes a cooling box, a water receiving box, a recovery box, a storage tank, a cold water tank, a storage box and a spraying device. The cooling box is provided with a discharge door, and the spraying device, the cooling box and the water receiving box are sequentially from top to bottom. Installed and fixed, a drainage hole is arranged between the cooling box and the water receiving box, the recovery box, the storage tank, the cold water tank and the storage box are all arranged on one side of the water receiving box, and a first tray is arranged in the recovery box One end of the water receiving tank and the first coil in the recovery tank are connected through a first drain pipe, and the other end of the first coil is connected with the storage tank through a second drain pipe. One end of the second coil is communicated with the cold water tank through a third drainage pipe, and the other end of the second coil is communicated with the storage tank through a fourth drainage pipe. 2. A thermal power plant boiler bottom slag processing device according to claim 1, wherein the spraying device comprises a water pump, a water inlet pipe and a spray head, the input end of the water pump is arranged on a storage tank, and the inlet The water pipe is in the shape of a right angle, one end of the water inlet pipe is connected with the output end of the water pump, and the other end of the water inlet pipe is erected above the cooling box and is provided with a spray head facing the cooling box. 3 . The device for treating bottom slag of a thermal power plant boiler according to claim 1 , wherein the first coil is arranged below the second coil. 4 . 4. A thermal power plant boiler bottom slag processing device according to claim 1, wherein the conveying device comprises a support frame, a rotating shaft, a drive motor and a conveying belt, and one end of the support frame is arranged at the discharge Below the door, the other end of the support frame is provided with a rotating shaft and above the crushing device, one end of the rotating shaft is provided with a drive motor, and a conveying belt is provided outside the rotating shaft, and the conveying belt is connected with the smashing device. Rotary shaft rotation fit. 5. A thermal power plant boiler bottom slag processing device according to claim 4, characterized in that, the pulverizing device comprises a pulverizing box, a pulverizing shaft, a rotating motor, a filter screen and a receiving box, and the pulverizing box is arranged on a support Below the rack, a receiving box is arranged below the crushing box, a crushing shaft is arranged inside the crushing box, a rotating motor is arranged at one end of the crushing shaft, and a filter screen is also arranged inside the crushing box.

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