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CN-121994036-A - System and method for recycling waste heat and waste materials generated by calcining gypsum board

CN121994036ACN 121994036 ACN121994036 ACN 121994036ACN-121994036-A

Abstract

The invention discloses a waste heat and waste material recycling system for gypsum board calcination, which comprises a cooling bin, a recycling air duct, a recycling ash duct, a temperature sensor and a controller, wherein the cooling bin is provided with a plurality of air pipes and the temperature sensor, a fan is arranged at the end part of each air pipe, the recycling air duct is communicated with an air outlet of the fan, the recycling air duct can convey high-temperature air into the calcination bin, the lower end of the recycling ash duct is provided with an ash storage tank and a conveyor, and the controller is electrically connected with the fan, a first valve, the conveyor and the temperature sensor. According to the invention, the air pipe and the fan are arranged, so that heat with the height Wen Meihui can be taken away and conveyed into the calcination bin, and the recycling ash channel and the conveyor are arranged, so that the cooled coal ash can be recycled and conveyed into the mixing bin to be mixed with the gypsum ash, and the recycling of the waste heat and the coal ash of the gypsum board is realized.

Inventors

  • FANG JIANBIN

Assignees

  • 故城北新建材有限公司

Dates

Publication Date
20260508
Application Date
20260122

Claims (10)

  1. 1. A waste heat and waste recycling system for gypsum board calcination, comprising: The cooling bin (1), cooling bin (1) is used for holding coal ash, a plurality of tuber pipes (11) are arranged at the lower end of the inside of cooling bin (1) in a penetrating way, a fan (12) is arranged at the end part of each tuber pipe (11) in a communicating way, and the fan (12) can guide low-temperature air to absorb heat of Wen Meihui through the tuber pipes (11); The recovery air duct (2) is communicated with an air outlet of the fan (12), and the recovery air duct (2) can convey high-temperature air flow in the cooling bin (1) into the calcining bin; The device comprises a recycling ash channel (3), wherein the recycling ash channel (3) is arranged at the bottom of the cooling bin (1), the other end of the recycling ash channel (3) is communicated to an ash storage tank (31), a conveyor (32) is arranged at the bottom of the ash storage tank (31), and the conveyor (32) can uniformly convey cooling coal ash to a gypsum powder mixing bin; The cooling bin (1) is internally provided with a temperature sensor (4), a first valve (13) is arranged at the joint of the cooling bin (1) and the recycling ash channel (3), and the temperature sensor (4) can detect the temperature of coal ash; The controller (5) is electrically connected to the fan (12), the first valve (13), the conveyor (32) and the temperature sensor (4), and the controller (5) is used for controlling the opening and closing of the fan (12), the first valve (13) and the conveyor (32) and can receive detection signals of the temperature sensor (4); The high Wen Meihui is placed in the cooling bin (1), the temperature sensor (4) detects that the temperature is higher than a high-temperature threshold value, a detection signal can be fed back to the controller (5), the fan (12) is started through the controller (5), and air heated by the high Wen Meihui is conveyed to the gypsum material calcining bin; The temperature sensor (4) detects that the temperature of the coal ash is lower than a low-temperature threshold value, and can feed back a detection signal to the controller (5) so as to open the first valve (13) through the controller (5) to discharge ash, and simultaneously close the fan (12) and open the conveyor (31) to convey the coal ash to the gypsum powder mixing bin.
  2. 2. A gypsum board calcination waste heat and waste material recycling system according to claim 1, wherein, The air pipes (11) are horizontally arranged in the cooling bin (1) in a penetrating mode, the air pipes (11) are divided into multiple layers from top to bottom, and the projections of two adjacent layers of air pipes (11) on the horizontal plane are staggered; Wherein the temperature sensor (4) is arranged on the inner wall of the cooling bin (1).
  3. 3. A gypsum board calcination waste heat and waste material recycling system according to claim 2, wherein, The upper end of cooling bin (1) is provided with grey mouth (14), the bottom of cooling bin (1) is provided with ash mouth (15), first valve (13) set up in ash mouth (15), just first valve (13) are perpendicular down.
  4. 4. A gypsum board calcination waste heat and waste material recycling system according to claim 3, wherein, An air inlet of the fan (12) is provided with an air inlet pipe (121), the same side end parts of a plurality of air pipes (11) are communicated to the air inlet pipe (121), and an air outlet of the fan (12) is connected to an air inlet of the recovery air duct (2); The end of the recovery air duct (2) is provided with a plurality of branch pipes (21), each branch pipe (21) is provided with a distribution fan (211), the end of each branch pipe (21) is respectively communicated to different calcining bins, and the controller (5) is electrically connected with the distribution fans (211) so as to control the opening and closing of the distribution fans (211) and adjust the power of the distribution fans (211).
  5. 5. A gypsum board calcination waste heat and waste material recycling system according to claim 1, wherein, The ash storage tank (31) comprises a tank body (33) and a bracket (34), the bracket (34) is used for supporting the tank body (33), an inlet (331) is formed in the upper end of the tank body (33), an outlet (332) is formed in the bottom of the tank body (33), a second valve (35) is arranged at the outlet (332), and the controller (5) is electrically connected to the second valve (35) to control the opening and closing of the second valve (35); Wherein, retrieve ash channel (3) slope setting, retrieve the slope upper end of ash channel (3) communicate to first valve (13), retrieve the slope lower extreme of ash channel (3) communicate to entry (331), first valve (13) are opened, and the coal ash can follow retrieve ash channel (3) whereabouts in jar body (33).
  6. 6. A gypsum board calcination waste heat and waste material recycling system according to claim 5, wherein, A weighing bin (36) is arranged below the tank body (33), at least three weighing support legs (37) are arranged at the bottom of the weighing bin (36), and the weighing support legs (37) can support the weighing bin (36); Wherein the weighing support leg (37) is used for weighing the weight of the weighing bin (36).
  7. 7. A gypsum board calcination waste heat and waste material recycling system according to claim 6, wherein, The weighing support leg (37) comprises a support rod (371) and a sleeve rod (372), the sleeve rod (372) is sleeved on the support rod (371), a spring (373) is arranged at the upper end of the support rod (371), a weighing sensor (374) is arranged at the top end of the inside of the sleeve rod (372), and the upper end of the spring (373) is propped against the weighing sensor (374); wherein the controller (5) is electrically connected to the load cell (374) to obtain the weight of the weigh bin (36).
  8. 8. A gypsum board calcination waste heat and waste material recycling system according to claim 7, wherein, The top feed inlet of the weighing bin (36) is communicated with the outlet of the tank body (33) through a flexible first material pipe (361), and the discharge port at one side of the weighing bin (36) is communicated to the conveyor (31) through a flexible second material pipe (362); The discharge hole of the weighing bin (36) is provided with a third valve (363), and the controller (5) is electrically connected to the third valve (363) so as to control the switch of the third valve (363).
  9. 9. A gypsum board calcination waste heat and waste material recycling system according to claim 8, wherein, The conveyor (32) comprises a conveying pipeline (321), one end of the conveying pipeline (321) is connected to the third valve (363), an air pump (322) is arranged at the other end of the conveying pipeline (321), and an air outlet of the air pump (322) is communicated into the mixing bin; The air pump (322) is characterized in that an air valve (364) is arranged at the upper end of the weighing bin (36), and the controller (5) is electrically connected with the air pump (322) and the air valve (364) so as to control the opening and closing of the air pump (322) and the air valve (364).
  10. 10. A method for waste heat and waste recycling from calcination of gypsum board according to any one of claims 1 to 9, comprising the steps of: step 100, stacking the high Wen Meihui to the bottom of the cooling bin to cover the air pipe, detecting that the temperature is higher than a high-temperature threshold value by a temperature sensor, and feeding back a detection signal to a controller to start a fan; Step 200, a fan guides low-temperature air to absorb heat of the high Wen Meihui through an air pipe, and the heat is conveyed to a calcination bin through a recovery air channel to preheat gypsum powder; And 300, feeding back a detection signal to the controller to close the fan when the temperature sensor detects that the temperature is lower than the low-temperature threshold value, opening the first valve, and opening the conveyor to convey the low-temperature coal ash to the gypsum powder mixing bin.

Description

System and method for recycling waste heat and waste materials generated by calcining gypsum board Technical Field The invention relates to the technical field of gypsum board production, in particular to a system and a method for recycling waste heat and waste materials generated by calcining gypsum boards. Background The existing gypsum production line usually adopts a closed storage tank to store high Wen Meihui materials and discharges the materials through a pipeline, meanwhile, because the high Wen Meihui is cooled slowly, the heat damage to storage equipment and conveying equipment is larger, and coal ash cannot be directly mixed with calcined gypsum powder for use in a high-temperature state, so that the coal ash is usually directly discharged, in the process, sensible heat carried by the high-temperature materials is directly dissipated through a tank body and is lost along with the discharge of the coal ash, and the waste of materials and heat energy is caused. Therefore, the existing storage tank and pipeline storage emission method with high Wen Meihui has the problems that the coal ash in a high-temperature state is difficult to directly mix with gypsum powder for use, and the emission is needed, so that the waste of materials and heat energy is caused. Disclosure of Invention The invention aims to provide a system and a method for recycling waste heat and waste materials of gypsum board calcination, which are used for solving the technical problems that in the prior art, coal ash in a high temperature state is difficult to directly mix with gypsum powder for use and needs to be discharged, so that waste of materials and heat energy is caused. In order to solve the technical problems, the invention specifically provides the following technical scheme: A waste heat and waste recycling system for gypsum board calcination, comprising: The cooling bin is used for containing coal ash, a plurality of air pipes penetrate through the lower end of the inner part of the cooling bin, a fan is arranged at the end part of each air pipe in a communicated mode, and the fan can guide low-temperature air to absorb heat of a height Wen Meihui through the air pipes; The recovery air duct is communicated with the air outlet of the fan and can convey high-temperature air flow in the cooling bin into the calcining bin; The bottom of the cooling bin is provided with the recycling ash channel, the other end of the recycling ash channel is communicated with the ash storage tank, the bottom of the ash storage tank is provided with a conveyor, and the conveyor can uniformly convey cooling coal ash to the gypsum powder mixing bin; The cooling bin is internally provided with a temperature sensor, a first valve is arranged at the joint of the cooling bin and the recycling ash channel, and the temperature sensor can detect the temperature of coal ash; The controller is electrically connected to the fan, the first valve, the conveyor and the temperature sensor, and is used for controlling the opening and closing of the fan, the first valve and the conveyor and receiving detection signals of the temperature sensor; the high Wen Meihui is placed in the cooling bin, the temperature sensor detects that the temperature is higher than a high-temperature threshold value, a detection signal can be fed back to the controller, the fan is started through the controller, and air heated by the high Wen Meihui is conveyed to the gypsum material calcining bin; the temperature sensor detects that the temperature of the coal ash is lower than a low-temperature threshold value, and can feed back a detection signal to the controller so as to open the first valve through the controller to discharge ash, and simultaneously close the fan and open the conveyor to convey the coal ash to the gypsum powder mixing bin. As a preferable scheme of the invention, a plurality of air pipes are horizontally arranged in the cooling bin in a penetrating way, the air pipes are divided into a plurality of layers from top to bottom, and projections of two adjacent layers of air pipes on the horizontal plane are mutually staggered; Wherein, temperature sensor set up in the cooling storehouse inner wall. As a preferable scheme of the invention, the upper end of the cooling bin is provided with the ash inlet, the bottom of the cooling bin is provided with the ash outlet, the first valve is arranged in the ash outlet, and the first valve is vertically downward. As a preferable scheme of the invention, the air inlet of the fan is provided with an air inlet pipe, the same side end parts of a plurality of air pipes are communicated with the air inlet pipe, and the air outlet of the fan is connected with the air inlet of the recovery air channel; the end of the recovery air duct is provided with a plurality of branch pipes, each branch pipe is provided with a distribution fan, the end parts of the plurality of branch pipes are respectively communicated into different calc