A device for dry heat treatment of construction waste

Abstract

The utility model discloses a kind of construction slag dry heat treatment devices, belong to construction slag processing technical field.This kind of construction slag dry heat treatment device, including processing mechanism and purification mechanism, processing mechanism includes processing box, the bottom end of processing box is installed with bunker, the output of bunker is equipped with first screw conveyor, the outside of processing box is equipped with electric heating jacket, the inside bottom end of processing box is rotatably connected with spiral stirring rod, the bottom end both sides of spiral stirring rod are equipped with scraper, the inside of processing box is embedded and is installed with temperature sensor;Purification mechanism includes purification box, the top end of purification box is connected with the top end of purification box on the side of electric heating jacket side upper end, and the inside upper end of purification box is fixedly installed with even distribution plate, the inside of purification box is sequentially installed with first activated carbon filter layer, second activated carbon filter layer and third activated carbon filter layer from top to bottom at the bottom end of even distribution plate, the utility model, can effectively improve the practicality of slag processing device.

Description

Technical Field

[0001] This utility model relates to the field of construction waste treatment technology, specifically a construction waste dry heat treatment device. Background Technology

[0002] With the acceleration of urbanization, the number of construction projects is constantly increasing, which also generates a large amount of construction waste. If construction waste is dumped indiscriminately, it will not only occupy a lot of land resources, but also pollute the environment. Dry thermal treatment is an effective pretreatment method for construction waste, which removes moisture from the waste by heating and decomposes some harmful substances.

[0003] Based on the above, the inventors have discovered the following problems: existing dry thermal treatment devices for construction waste suffer from uneven heating, low processing efficiency, high energy consumption, and direct emission of waste gas, which pollutes the environment and makes it difficult to meet the needs of large-scale construction waste treatment.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a dry thermal treatment device for construction waste, in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this utility model is to provide a dry thermal treatment device for construction waste, so as to solve the problems of uneven heating, low treatment efficiency, high energy consumption and direct emission of waste gas that exist in the existing dry thermal treatment devices for construction waste mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows: A dry thermal treatment device for construction waste includes a treatment mechanism and a purification mechanism. The treatment mechanism includes a treatment box with a hopper at its bottom. A first screw conveyor is fitted over the outlet of the hopper. An electric heating jacket is fitted over the outside of the treatment box. A screw stirring rod is rotatably connected to the bottom of the treatment box. Scrapers are installed on both sides of the bottom of the screw stirring rod. A temperature sensor is embedded in the inside of the treatment box. The purification mechanism includes a purification box with a dry-wet separator installed at the top of the purification box. A distribution plate is fixedly installed at the upper inside of the purification box. A first activated carbon filter layer, a second activated carbon filter layer, and a third activated carbon filter layer are installed sequentially from top to bottom at the bottom of the distribution plate inside the purification box. A discharge pipe is installed on the bottom side of the purification box.

[0007] Furthermore, the processing mechanism also includes a box cover, which is connected to the processing box by bolts. A prism is rotatably connected to the center of the bottom end of the box cover, and a groove is provided at the top end of the spiral stirring rod. The prism and the groove are engaged.

[0008] The advantages of adopting the above-mentioned further solution are that the bolted connection between the box cover and the processing box facilitates opening and closing, and makes it convenient to inspect and repair the internal components of the processing box; the prism and the groove of the spiral stirring rod are engaged, which not only ensures the power transmission to drive the spiral stirring rod to rotate, but also facilitates the disassembly of the box cover.

[0009] Furthermore, a drive motor is fixedly installed on the top of the box cover, and the output end of the drive motor is connected to the prism drive.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the drive motor provides stable rotational power for the prism and the spiral mixing rod, ensuring that the spiral mixing rod mixes the construction waste, making the waste heat evenly, improving the dry heat treatment effect, and avoiding local overheating or insufficient treatment.

[0011] Furthermore, a feeding trough is provided on both sides of the bottom of the processing box, and a baffle is slidably inserted inside the feeding trough. A pair of electric telescopic rods are installed on both sides of the bottom of the processing box, and the output end of each pair of electric telescopic rods is fixedly connected to both sides of a pair of baffles.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the discharge chute of the processing box is used to discharge the processed slag, and the opening and closing and opening degree of the discharge chute can be controlled by the electric telescopic rod driving the baffle to realize the discharge of slag, which is then transported in conjunction with the silo and the first screw conveyor.

[0013] Furthermore, a second screw conveyor is provided on one side of the processing box, and the output end of the second screw conveyor is connected to the upper side of the box cover through a pipe.

[0014] The beneficial effect of adopting the above-mentioned further solution is that the second screw conveyor can automatically transport the construction waste to be processed to the box cover and into the processing box, eliminating the need for manual feeding, reducing the intensity of manual labor, realizing automated feeding of construction waste, and improving the overall processing efficiency.

[0015] Furthermore, a centrifugal fan is installed on the other side of the upper surface of the box cover. The output end of the centrifugal fan is connected to the input end of the dry-wet separator through a pipe, and the input end of the centrifugal fan is connected to the box cover through a pipe.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the centrifugal fan helps to accelerate the transportation of the waste gas generated by the dry heat treatment in the treatment box to the dry-wet separator for dehumidification, and then enters the purification box for filtration and purification, which accelerates the discharge of waste gas, avoids excessive air pressure in the treatment box, and ensures that all waste gas is discharged after purification treatment, thereby improving the environmental protection effect.

[0017] Furthermore, the first activated carbon filter layer is coal-based columnar activated carbon, the second activated carbon filter layer is coconut shell granular activated carbon, and the third activated carbon filter layer is alkaline impregnated activated carbon.

[0018] The beneficial effects of adopting the above-mentioned further scheme are that the coal-based columnar activated carbon in the first activated carbon filter layer can initially adsorb particulate impurities in the waste gas, the coconut shell granular activated carbon in the second activated carbon filter layer deeply adsorbs organic pollutants, and the alkaline impregnated activated carbon in the third activated carbon filter layer neutralizes acidic gases. The three layers work together to achieve multi-stage purification of waste gas, greatly improve the purification effect, and ensure that the emitted gas meets the standards.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The construction waste dry heat treatment device uses an electric heating jacket to dry heat treat the construction waste in the treatment box. The spiral stirring rod stirs the waste, causing it to continuously roll upwards, promoting uniform heating. The scraper can assist in stirring the bottom of the box and facilitates the discharge of the waste from the treatment box. The temperature sensor monitors the treatment temperature in real time to ensure the drying heat treatment effect. The hopper and the first spiral conveyor work together to realize the automatic transportation of the treated waste. The purification box of the purification mechanism evenly distributes the waste gas through the equalization plate, and the three layers of activated carbon filter layer filter it in sequence, and the clean gas is discharged through the discharge pipe to avoid environmental pollution. The whole device realizes the integration of construction waste dry heat treatment and waste gas purification, which is environmentally friendly and efficient. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the construction waste dry thermal treatment device disclosed in this utility model embodiment. Figure 1 ; Figure 2 This is a three-dimensional structural diagram of the construction waste dry thermal treatment device disclosed in this utility model embodiment. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the internal structure of the processing box of the dry thermal treatment device for construction waste disclosed in an embodiment of this utility model. Figure 4 This is a three-dimensional structural diagram of the box cover of the dry thermal treatment device for construction waste disclosed in an embodiment of this utility model; Figure 5 This is a side cross-sectional view of the purification box of the dry thermal treatment device for construction waste disclosed in an embodiment of this utility model.

[0021] In the diagram: 1. Processing mechanism; 101. Processing box; 102. Hopper; 103. Electric heating jacket; 104. First screw conveyor; 105. Baffle; 106. Electric telescopic rod; 107. Box cover; 108. Spiral stirring rod; 109. Scraper; 110. Discharge chute; 111. Ribbon groove; 112. Prism; 113. Drive motor; 114. Centrifugal fan; 2. Second screw conveyor; 3. Purification mechanism; 301. Purification box; 302. Discharge pipe; 303. First activated carbon filter layer; 304. Second activated carbon filter layer; 305. Third activated carbon filter layer; 306. Equalizing plate; 307. Dry and wet separator. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a dry thermal treatment device for construction waste, including a treatment mechanism 1 and a purification mechanism 3. The treatment mechanism 1 includes a treatment box 101, a hopper 102 installed at the bottom of the treatment box 101, a first screw conveyor 104 fitted at the outlet of the hopper 102, an electric heating jacket 103 fitted on the outside of the treatment box 101, a spiral stirring rod 108 rotatably connected to the bottom of the inside of the treatment box 101, scrapers 109 installed on both sides of the bottom of the spiral stirring rod 108, and a scraper 109 embedded on the inside of the treatment box 101. A temperature sensor is installed; the purification mechanism 3 includes a purification box 301, one side of which is connected to the upper end of the side of the electric heating jacket 103. A dry and wet separator 307 is installed on the top of the purification box 301. A distribution plate 306 is fixedly installed on the upper end of the interior of the purification box 301. A first activated carbon filter layer 303, a second activated carbon filter layer 304, and a third activated carbon filter layer 305 are installed sequentially from top to bottom on the bottom end of the distribution plate 306 inside the purification box 301. A discharge pipe 302 is installed on the bottom side of the purification box 301.

[0024] As an embodiment of this utility model, the processing mechanism 1 further includes a box cover 107, which is bolted to the processing box 101. A prism 112 is rotatably connected to the bottom center of the box cover 107, and a groove 111 is provided at the top of the spiral stirring rod 108. The prism 112 is engaged with the groove 111. The bolted connection between the box cover 107 and the processing box 101 facilitates opening and closing and makes it convenient to inspect and repair the internal components of the processing box 101. The engagement between the prism 112 and the groove 111 of the spiral stirring rod 108 ensures power transmission to drive the spiral stirring rod 108 to rotate, and also facilitates the disassembly of the box cover 107.

[0025] As an embodiment of this utility model, a drive motor 113 is fixedly installed on the top of the box cover 107. The output end of the drive motor 113 is connected to the prism 112 for transmission. The drive motor 113 provides stable rotation power to the prism 112 and the spiral stirring rod 108, ensuring that the spiral stirring rod 108 stirs the construction waste, so that the waste is heated evenly, improving the dry heat treatment effect, and avoiding local overheating or insufficient treatment.

[0026] As an embodiment of this utility model, further, a discharge trough 110 is provided on both sides of the bottom end of the processing box 101, and a baffle 105 is slidably inserted inside the discharge trough 110. A pair of electric telescopic rods 106 are installed on both sides of the bottom end of the processing box 101. The output end of each pair of electric telescopic rods 106 is fixedly connected to both sides of a pair of baffles 105. The discharge trough 110 of the processing box 101 is used to discharge the processed slag. The electric telescopic rods 106 drive the baffles 105 to slide, which can control the opening and closing and the degree of opening of the discharge trough 110, so as to realize the discharge of slag and cooperate with the hopper 102 and the first screw conveyor 104 for transportation.

[0027] As an embodiment of this utility model, a second screw conveyor 2 is provided on one side of the processing box 101. The output end of the second screw conveyor 2 is connected to the upper side of the box cover 107 through a pipe. The second screw conveyor 2 can automatically transport the construction waste to be processed to the box cover 107 and into the processing box 101 without manual feeding, reducing the intensity of manual labor, realizing automated feeding of waste, and improving the overall processing efficiency.

[0028] As an embodiment of this utility model, a centrifugal fan 114 is further installed on the other side of the upper surface of the box cover 107. The output end of the centrifugal fan 114 is connected to the input end of the dry-wet separator 307 through a pipe. The input end of the centrifugal fan 114 is connected to the box cover 107 through a pipe. The centrifugal fan 114 helps to accelerate the transportation of the waste gas generated by the dry heat treatment in the treatment box 101 to the dry-wet separator 307 for dehumidification, and then enters the purification box 301 for filtration and purification, which accelerates the discharge of waste gas, avoids excessive air pressure in the treatment box 101, and ensures that all waste gas is purified before being discharged, thereby improving the environmental protection effect.

[0029] In one embodiment of this utility model, the first activated carbon filter layer 303 is coal-based columnar activated carbon, the second activated carbon filter layer 304 is coconut shell granular activated carbon, and the third activated carbon filter layer 305 is alkaline impregnated activated carbon. The coal-based columnar activated carbon in the first activated carbon filter layer 303 can initially adsorb particulate impurities in the waste gas, the coconut shell granular activated carbon in the second activated carbon filter layer 304 deeply adsorbs organic pollutants, and the alkaline impregnated activated carbon in the third activated carbon filter layer 305 neutralizes acidic gases. The three layers work together to achieve multi-stage purification of waste gas, greatly improving the purification effect and ensuring that the emitted gas meets the standards.

[0030] Specifically, the working principle of this construction waste dry heat treatment device is as follows: During use, the construction waste to be treated is first transported through a pipeline to the cover 107 and then into the treatment box 101 via the second screw conveyor 2. The electric heating jacket 103 heats the treatment box 101, and simultaneously, the drive motor 113 is started to rotate the prism 112. The prism 112 engages with the groove 111 of the spiral stirring rod 108, driving the spiral stirring rod 108 to rotate, making the waste tumble and heat evenly. The scraper 109 assists in stirring the waste at the bottom of the box, and the temperature sensor monitors the processing temperature in real time. During the dry heat treatment process, the centrifugal fan 114 blows the waste generated inside the treatment box 101... The exhaust gas is drawn into the dry-wet separator 307 for dehumidification, and then enters the purification box 301. After being evenly distributed by the equalization plate 306, it is filtered and purified sequentially through the first activated carbon filter layer 303, the second activated carbon filter layer 304, and the third activated carbon filter layer 305, and finally discharged through the discharge pipe 302. After the treatment is completed, the electric telescopic rod 106 drives the baffle 105 to open the feeding chute 110. The spiral stirring rod 108 and the scraper 109 work together to push the slag into the hopper 102, and then the first screw conveyor 104 transports it to the subsequent processing stage. The whole process realizes the automated dry-heat treatment and exhaust gas purification of construction slag, which is highly efficient and environmentally friendly.

[0031] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A device for the dry thermal treatment of construction waste, characterized in that, The system includes a processing mechanism (1) and a purification mechanism (3). The processing mechanism (1) includes a processing box (101), a hopper (102) installed at the bottom of the processing box (101), a first screw conveyor (104) fitted at the outlet of the hopper (102), an electric heating jacket (103) fitted on the outside of the processing box (101), a spiral stirring rod (108) rotatably connected to the bottom of the processing box (101), scrapers (109) installed on both sides of the bottom of the spiral stirring rod (108), and a temperature sensor embedded in the inside of the processing box (101). The purification mechanism (3) includes a processing unit (101) and a purification unit (3). The purification mechanism (3) includes a purification box (301), one side of which is connected to the upper end of the side of the electric heating jacket (103). A dry and wet separator (307) is installed on the top of the purification box (301). A distribution plate (306) is fixedly installed on the upper end of the interior of the purification box (301). A first activated carbon filter layer (303), a second activated carbon filter layer (304) and a third activated carbon filter layer (305) are installed sequentially from top to bottom on the bottom end of the distribution plate (306) inside the purification box (301). A discharge pipe (302) is installed on the bottom side of the purification box (301).

2. The dry thermal treatment device for construction waste according to claim 1, characterized in that, The processing mechanism (1) also includes a box cover (107), which is connected to the processing box (101) by bolts. A prism (112) is rotatably connected at the bottom center of the box cover (107). A groove (111) is opened at the top of the spiral stirring rod (108), and the prism (112) is engaged with the groove (111).

3. The dry thermal treatment device for construction waste according to claim 2, characterized in that, A drive motor (113) is fixedly installed on the top of the box cover (107), and the output end of the drive motor (113) is connected to the prism (112) for transmission.

4. The dry thermal treatment device for construction waste according to claim 1, characterized in that, The bottom of the processing box (101) is provided with a feeding trough (110) on both sides. A baffle (105) is slidably inserted inside the feeding trough (110). A pair of electric telescopic rods (106) are installed on both sides of the bottom of the processing box (101). The output end of each pair of electric telescopic rods (106) is fixedly connected to both sides of a pair of baffles (105).

5. The dry thermal treatment device for construction waste according to claim 1, characterized in that, A second screw conveyor (2) is provided on one side of the processing box (101), and the output end of the second screw conveyor (2) is connected to the upper side of the box cover (107) through a pipe.

6. The dry thermal treatment device for construction waste according to claim 2, characterized in that, A centrifugal fan (114) is installed on the other side of the upper surface of the box cover (107). The output end of the centrifugal fan (114) is connected to the input end of the dry and wet separator (307) through a pipe. The input end of the centrifugal fan (114) is connected to the box cover (107) through a pipe.

7. The dry thermal treatment device for construction waste according to claim 1, characterized in that, The first activated carbon filter layer (303) is coal-based columnar activated carbon, the second activated carbon filter layer (304) is coconut shell granular activated carbon, and the third activated carbon filter layer (305) is alkaline impregnated activated carbon.

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