A system for incinerating and treating industrial and mining solid waste

Abstract

The present invention relates to an industrial and mining solid waste incineration treatment system, comprising a material hopper, a first conveying bin, an incinerator, a second conveying bin, and a landfill. The material hopper is provided with a horizontal stirring rod via a rotating shaft, the end of which is provided with a breaker hammer. The material hopper is hermetically connected to the first conveying bin via a discharge port. The discharge port is provided with a discharge plate extending into the first conveying bin. The lower portion of the first conveying bin is provided with a first plate-type conveying mechanism, the upper portion of which is provided with a flame gun, the jet flame of which is reflected by the discharge plate. The first conveying bin is connected to the upper portion of the incinerator, the lower portion of which is provided with a second plate-type conveying mechanism. The second plate-type conveying mechanism extends into the second conveying bin. A microbial inoculant box is provided at the upper portion of the second conveying bin, the bottom of which is connected to a microbial inoculant nozzle. The second conveying bin is connected to the landfill. The present invention has good process continuity, high efficiency, uniform incineration, and can degrade hazardous components that have not been completely eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial waste treatment, in particular to an industrial and mining solid waste incineration treatment system. Background Art

[0002] Industrial and mining solid waste refers to the various waste residues, dust, and other wastes discharged by industrial and mining enterprises during their production activities. These solid wastes include acid and alkaline sludge from the chemical industry, waste casting sand from the machinery industry, activated carbon residue from the food industry, animal and plant fiber scraps from the fiber industry, and brick and tile fragments from the silicate industry. These solid wastes are large in quantity, complex in composition, and diverse in type. With the development of industrial production, the amount of hazardous industrial waste is increasing. The phenomenon of passive storage, land occupation, soil, water, and air pollution, crop growth impacts, and human health is becoming increasingly serious. Therefore, the harmless treatment of industrial waste has become a top priority for industrial enterprises.

[0003] There are three main methods for treating industrial and mining solid waste: physical method, physical-chemical method and biological method. Common physical method treatment processes include: compaction, crushing and sorting; common physical-chemical method treatment processes include: incineration and stabilization and solidification; common biological method treatment processes include: composting and anaerobic fermentation. At present, the common waste treatment method for industrial and mining enterprises is to send solid waste to incinerators for incineration, so as to reduce the amount of waste produced, reduce the volume of solid hazardous waste, reduce or eliminate its hazardous components, and then directly landfill it in the land. Due to the simplicity of this treatment process, it has become a common treatment process for industrial and mining enterprises. At present, waste The following disadvantages still exist in the incineration process using an incinerator: (1) Since the solid waste needs to be crushed by a crusher before being transferred to the incinerator for incineration, the treatment process is poor in continuity and has low treatment efficiency; (2) Since the solid waste is piled up and incinerated in the incinerator, the internal waste is not burned evenly and the incineration is not complete, resulting in large waste residues after incineration; (3) Since the incinerated waste residues are directly buried in the land, the hazardous components that are not completely eliminated will pollute the soil, destroy the ecological balance in the soil, and make the soil lose its decomposition ability, resulting in the failure of vegetation to grow; therefore, a solution is proposed for the above-mentioned incineration treatment process. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides an industrial and mining solid waste incineration treatment system. The treatment system has good process continuity, high efficiency, uniform incineration, and can degrade hazardous components that have not been completely eliminated after landfill, effectively solving the problems of large waste residues after incineration and soil pollution and damage caused by the elimination of hazardous components.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a system for incinerating and treating industrial and mining solid waste, comprising a material hopper, a first conveying bin, an incinerator, a second conveying bin and a landfill pit, wherein the upper portion of the material hopper is fixed with mounting bearings at relative positions along the edge via connecting rods, and a rotating shaft is vertically installed at the middle position of its bottom via a fixed shaft seat, and the upper end of the rotating shaft is connected to a motor after passing through the mounting bearing, and the characteristic is that: the axial surface of the rotating shaft is staggered with evenly distributed horizontal stirring rods, and the ends of the horizontal stirring rods are respectively provided with breaking hammers; a discharge port is provided at the lower side of the material hopper, and the discharge port is tightly connected to one end of the first conveying bin; a downwardly inclined discharge plate is provided at the bottom edge of the discharge port, and the discharge plate extends into the first conveying bin; A first plate conveying mechanism is provided at the lower part of the first conveying bin, and a flame gun is installed at the upper part thereof; the lowest point of the flame gun's spray does not contact the first plate conveying mechanism, and the sprayed flame of the flame gun is reflected by the inclined plate surface of the discharge plate; the end part of the first conveying bin is connected to the upper part of the incinerator, and a second plate conveying mechanism is provided under the furnace of the incinerator; the second plate conveying mechanism is fixed in the second conveying bin after extending out of the incinerator, and a slag outlet is provided at the corresponding furnace wall of the incinerator; a microbial inoculant box is longitudinally provided in the middle of the upper front section of the second conveying bin, and the bottom of the microbial inoculant box is connected to a microbial inoculant nozzle extending into the second conveying bin; the end part of the second conveying bin is connected to the landfill pit.

[0008] Preferably, the material hopper is configured as a cylindrical structure with an open top.

[0009] Preferably, the first plate conveying mechanism and the second plate conveying mechanism are both composed of a driving wheel, a driven wheel, a conveying chain and a conveying chain plate. The driving wheel and the driven wheel are respectively installed at the two ends of the first conveying bin and the second conveying bin through a transmission shaft, and the driving wheel and the driven wheel are connected by a conveying chain, and the conveying chain is fixed with conveying chain plates side by side with nails.

[0010] Preferably, the bottom edge of the discharge plate is higher than the first plate conveying mechanism.

[0011] Preferably, the spray width of the flame gun is smaller than the width of the first delivery bin, and the flame gun is connected to natural gas through a pipeline to provide fuel.

[0012] Preferably, the incinerator adopts a vertical ZH-GL type solid incineration equipment with a furnace.

[0013] Preferably, powdered microbial agent or liquid microbial agent can be added into the microbial agent box.

[0014] Preferably, the lower half of the incinerator and the second conveying bin are both arranged below the ground.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides an industrial and mining solid waste incineration treatment system with the following beneficial effects:

[0017] (1) The incineration treatment system connects the material hopper and the incinerator through the first conveying bin. A horizontal stirring rod is provided in the material hopper, and a crushing hammer is provided at the end of the horizontal stirring rod. The crushing hammer crushes the solid waste entering the material hopper and unloads it into the first conveying bin through the discharge plate and transports it to the incinerator, which can effectively improve the process continuity and improve the treatment efficiency.

[0018] (2) The incineration treatment system is connected to the first conveying bin through the discharge port at the lower side of the material hopper, and the discharge plate is placed above the first plate conveyor. The first plate conveyor mechanism discharges the material during the transmission process, so that it forms a flow waterfall discharge form, which reduces the probability of material accumulation when unloaded on the first plate conveyor mechanism. At the same time of unloading on the first plate conveyor mechanism, the flame gun set on the upper part of the first conveying bin sprays flame to ignite the surface of the solid waste for the first incineration. During the incineration process, the solid waste enters the incinerator and is accumulated together for secondary incineration, which effectively solves the problem of uneven internal incineration, ensures complete incineration of the solid waste, and reduces the occurrence of large waste residues after incineration.

[0019] (3) The incineration treatment system is equipped with a second conveying bin, and the second plate conveying mechanism transports the incinerated slag to the landfill pit for landfilling. During the transportation in the second conveying bin, the slag is sprayed with microbial agents through the provided microbial agent nozzles, and then enters the landfill pit for landfilling. The slag after landfilling is degraded by the action of the microbial agents on the hazardous components that have not been completely eliminated, which can effectively protect the ecological balance in the soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic cross-sectional view of the structure of the present invention;

[0021] Figure 2 It is a side view of the external structure of the material hopper of the present invention;

[0022] Figure 3 A side view of the external structure of the incinerator of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the first plate conveying mechanism or the second plate conveying mechanism of the present invention.

[0024] In the figure: 1 material hopper, 2 first conveying bin, 3 incinerator, 4 second conveying bin, 5 landfill pit, 6 mounting bearing, 7 rotating shaft, 8 motor, 9 horizontal stirring rod, 10 breaker hammer, 11 discharge port, 12 discharge plate, 13 first plate conveying mechanism, 14 flame gun, 15 second plate conveying mechanism, 16 slag outlet, 17 microbial inoculant box, 18 inoculant nozzle, 19 driving wheel, 20 driven wheel, 21 conveyor chain, 22 conveyor chain plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the implementation scenarios of the present invention, rather than all the implementation scenarios. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] See Figure 1-3 A system for incinerating and treating industrial and mining solid waste includes a material hopper 1, a first conveying bin 2, an incinerator 3, a second conveying bin 4, and a landfill pit 5. The material hopper 1 is a cylindrical structure with an open top. A mounting bearing 6 is fixed to the upper edge of the hopper via a connecting rod. A rotating shaft 7 is vertically mounted in the middle of the bottom of the hopper via a fixed shaft seat. After the rotating shaft 7 passes through the mounting bearing 6, a motor 8 is connected to the upper end. Horizontal stirring rods 9 are evenly distributed and staggered on the axial surface of the rotating shaft 7. The ends of the horizontal stirring rods 9 are provided with crushing hammers 10; a discharge port 11 is provided at the lower side of the material hopper 1, and the discharge port 11 is sealed and connected to one end of the first conveying bin 2; a downwardly inclined discharge plate 12 is provided at the bottom of the discharge port 11, and the discharge plate 12 extends into the first conveying bin 2; a first plate conveying mechanism 13 is provided at the lower part of the first conveying bin 2, and a flame gun 14 is installed on the upper part; the bottom edge of the discharge plate 12 is higher than the first plate conveying mechanism 13; the spray of the flame gun 14 is the highest. The low point does not contact the first plate conveying mechanism 13, and the jet flame of the flame gun 14 is reflected by the inclined plate surface of the discharge plate 12. The jet width of the flame gun 14 is smaller than the width of the first conveying bin 2, and the flame gun 14 is connected to the natural gas fuel supply via a pipeline. The end of the first conveying bin 2 is connected to the upper part of the incinerator 3. The incinerator 3 adopts a vertical ZH-GL type solid incineration equipment with a furnace, and a second plate conveying mechanism 15 is provided below the furnace. The second plate conveying mechanism 15 extends out of the incinerator 3 and is fixed in the second conveying bin 4. A slag outlet 16 is correspondingly provided in the furnace wall of the incinerator 3. A microbial inoculant box 17 for adding powdered or liquid inoculant is longitudinally arranged in the middle of the upper front section of the second conveying bin 4. The bottom of the microbial inoculant box 17 is connected to a microbial inoculant nozzle 18 that extends into the second conveying bin 4. The lower half of the incinerator 3 and the second conveying bin 4 are both arranged below the ground. The end of the second conveying bin 4 is connected to the landfill pit 5.

[0027] See Figure 4 The first plate conveying mechanism 13 and the second plate conveying mechanism 15 are both composed of a driving wheel 19, a driven wheel 20, a conveying chain 21 and a conveying chain plate 22. The driving wheel 19 and the driven wheel 20 are respectively installed at the two ends of the first conveying bin 2 and the second conveying bin 4 through a transmission shaft, and the driving wheel 19 and the driven wheel 20 are connected by a conveying chain 21, and the conveying chain plates 22 are fastened side by side with nails on the conveying chain 21.

[0028] When the incineration treatment system is used to incinerate industrial and mining solid waste, the solid waste is poured into the material hopper 1, the motor 8 drives the rotating shaft 7 to rotate, the horizontal stirring rod 9 stirs the solid waste process, and the breaker hammer 10 crushes it. After the solid waste is crushed, it is discharged from the discharge plate 12 at the discharge port 11 onto the first plate conveying mechanism 13, which effectively improves the process continuity and improves the treatment efficiency; when the discharge plate 12 is unloading, the first plate conveying mechanism 13 performs a transmission movement, and a flow-type waterfall unloading form is formed when the material is unloaded, so that the probability of accumulation of the material unloaded on the first plate conveying mechanism 13 is reduced, and while the material is unloading on the first plate conveying mechanism 13, the flame gun 14 sprays flame to ignite the surface of the solid waste for the first incineration; the solid waste combustion process continues through the first plate conveying mechanism 13. The second plate conveying mechanism 15 is used to convey the solid waste into the incinerator 3 and stack them together for secondary incineration. The stacked solid waste is not only burned on the outside, but also on the inside, thus effectively solving the problem of uneven internal incineration, ensuring complete incineration of the solid waste and reducing the occurrence of large waste residues after incineration. When the solid waste in the incinerator 3 is burned into waste residue, it falls from the furnace to the second plate conveying mechanism 15 for transmission. The second plate conveying mechanism 15 sends the waste residue through the waste residue outlet 16 to the second conveying bin 4 for further transmission. During the transmission process, the microbial agent nozzle 18 is provided to spray the microbial agent in the microbial agent box 17 on the waste residue, and the waste residue is transported together to the landfill pit 5 for landfill. The waste residue after landfill is degraded by the action of the microbial agent that has not been completely eliminated. The ecological balance in the soil can be effectively protected.

[0029] Although the above embodiments have shown and described the technical solutions of the present invention, it is understood by those skilled in the art that various changes, modifications, substitutions and variations of the embodiments without departing from the principles and spirit of the present invention are all within the scope of the claims to be protected by the present invention.

Claims

1. A system for incinerating and treating industrial and mining solid waste, comprising a material hopper (1), a first conveying bin (2), an incinerator (3), a second conveying bin (4) and a landfill pit (5), wherein a mounting bearing (6) is fixed to the upper edge relative position of the material hopper (1) through a connecting rod, and a rotating shaft (7) is vertically mounted at the middle position of the bottom thereof through a fixed shaft seat, and the rotating shaft (7) is connected to a motor (8) at the upper end thereof after passing through the mounting bearing (6), and is characterized in that: The axial surface of the rotating shaft (7) is staggered with evenly distributed horizontal stirring rods (9), and the ends of the horizontal stirring rods (9) are respectively provided with crushing hammers (10); the lower side of the material hopper (1) is provided with a discharge port (11), and the discharge port (11) is tightly connected with one end of the first conveying bin (2); the bottom edge of the discharge port (11) is provided with a downwardly inclined discharge plate (12), and the discharge plate (12) extends into the first conveying bin (2); the lower part of the first conveying bin (2) is provided with a first plate conveying mechanism (13), and the upper part thereof is provided with a flame gun (14); the lowest point of the spray of the flame gun (14) does not contact the first plate conveying mechanism (13), and the spray of the flame gun (14) is not in contact with the first plate conveying mechanism (13). The projecting flame is reflected on the inclined plate surface of the discharge plate (12); the end portion of the first conveying bin (2) is communicated with the upper portion of the incinerator (3), and a second plate-type conveying mechanism (15) is provided below the furnace of the incinerator (3); the second plate-type conveying mechanism (15) is fixed in the second conveying bin (4) after extending out of the incinerator (3), and a slag outlet (16) is provided on the corresponding furnace wall of the incinerator (3); a microbial agent box (17) is longitudinally provided in the middle of the upper front section of the second conveying bin (4), and the bottom of the microbial agent box (17) is connected to a microbial agent nozzle (18) extending into the second conveying bin (4); the end portion of the second conveying bin (4) is communicated with the landfill pit (5).

2. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: The material hopper (1) is configured as a cylindrical structure with an open top.

3. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: The first plate-type conveying mechanism (13) and the second plate-type conveying mechanism (15) are both composed of a driving wheel (19), a driven wheel (20), a conveying chain (21) and a conveying chain plate (22); the driving wheel (19) and the driven wheel (20) are respectively installed at the two ends of the first conveying bin (2) and the second conveying bin (4) through a transmission shaft, and the driving wheel (19) and the driven wheel (20) are connected by a conveying chain (21), and the conveying chain plates (22) are fixed to the conveying chain (21) in parallel by nails.

4. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: The bottom edge of the discharge plate (12) is higher than the first plate-type conveying mechanism (13).

5. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: The spray width of the flame gun (14) is smaller than the width of the first delivery bin (2), and the flame gun (14) is supplied with fuel by natural gas.

6. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: The incinerator (3) adopts a vertical ZH-GL type solid incineration equipment with a furnace.

7. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: Powdered microbial agent or liquid microbial agent can be added into the microbial agent box (17).

8. The industrial and mining solid waste incineration treatment system according to claim 1, characterized in that: The lower half of the incinerator (3) and the second conveying bin (4) are both arranged below the ground.

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