CN216954042U - Cement kiln solid waste treatment device - Google Patents
Cement kiln solid waste treatment device Download PDFInfo
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- CN216954042U CN216954042U CN202220730677.0U CN202220730677U CN216954042U CN 216954042 U CN216954042 U CN 216954042U CN 202220730677 U CN202220730677 U CN 202220730677U CN 216954042 U CN216954042 U CN 216954042U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the field of cement kiln solid waste treatment equipment, in particular to a cement kiln solid waste treatment device; the cement kiln comprises a cyclone cylinder, a kiln tail decomposing furnace and a rotary kiln; the solid waste disposal device is arranged beside the kiln tail decomposing furnace; the solid waste disposal device comprises a stepped furnace, a blanking structure is arranged at the upper end of the stepped furnace, and an air supply structure is arranged on one side of the stepped furnace, which is far away from the kiln tail decomposing furnace; the step furnace comprises a furnace body, the furnace body is also provided with a control valve plate structure, and the control valve plate structure comprises a gate valve arranged on the furnace body; the gate valve is positioned on one side of the air inlet through hole; the gate valve penetrates through the furnace body and extends to the inner side of the furnace body; according to the utility model, by controlling the arrangement of the valve plate structure, the airflow field in the stepped furnace can be adjusted, airflow flows with different strengths can be provided according to actual production requirements, and the requirements of actual production are met.
Description
Technical Field
The utility model relates to the field of cement kiln solid waste treatment equipment, in particular to a cement kiln solid waste treatment device.
Background
With the development of socio-economy, the production of solid wastes in China is continuously increased, wherein the industrial solid wastes are increased by 7% every year, and the municipal solid wastes are increased by 4% every year. In 2015, the production amount of industrial solid wastes in China is 32.2 hundred million tons, and the comprehensive utilization rate is about 50%; in 2017, the industrial solid waste production in China reaches 50 hundred million tons, the comprehensive utilization rate is 54 percent, and for the building material industry, the waste is 'resource with misplaced' and 'gold ore' of building material resources.
By utilizing a series of characteristics of high temperature, more alkaline materials and the like of a novel dry-method cement kiln, the method takes industrial solid wastes as cement raw materials to be consumed and realizes harmless and resource treatment, is the best way suitable for the national conditions of China, and particularly realizes cooperative treatment of wastes needing to be treated in an incineration manner by the cement kiln, so that the wastes are more and more accepted by the environmental protection field. Over forty years of practice in developed foreign countries have proved that the waste co-processed by the cement kiln has the characteristics of safety, environmental protection and economy, and is one of the effective disposal ways of the waste, which is clear from the Basel convention, and the co-processing method of the waste in the cement production process is considered as a harmless treatment method to the environment, namely, the best feasible technology.
On 6 th 5 th month in 2014, seven committees such as national institute of development and improvement, science and technology department, department of industry and trust, department of finance, department of environmental protection, department of housing and construction, national energy agency jointly issued comments on the work of promoting the production process to cooperatively recycle urban and industrial wastes, and pointed out that: the novel dry-method cement kiln is utilized to cooperatively treat the municipal domestic waste and the industrial waste, so that the resource utilization and the harmless treatment of the waste can be promoted; by means of cooperative resource utilization, a circular economic chain can be constructed, enterprises are promoted to reduce energy resource consumption and pollution emission, traditional industries such as cement and the like are promoted to solve the conflict of excess capacity, green transformation is realized, good images of bearing social responsibility and protecting environment are established, and harmonious coexistence of the enterprises and cities is realized.
The existing cement kiln is cooperated with the solid waste and hazardous waste treatment process and the existing problems are as follows:
at present, cement kiln handles solid useless mainly adopts two kinds of modes of calcining, and one kind is for the solid useless after the compatibility sends into the rotary kiln through the pump, and another kind is for directly sending into the dore furnace with the solid useless after the compatibility, and above two kinds of modes all can send into solid useless danger useless high-temperature region and calcine, but have following problem:
poor dispersion of solid wastes and influence on clinker quality;
the internal flow field of the calcining device is single and unadjustable;
the solid waste blanking is concentrated and not dispersed, and is not easy to burn.
Therefore, in order to solve the above technical problems, the existing cement kiln solid waste treatment device needs to be optimally designed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a cement kiln solid waste treatment device with an adjustable airflow flow field in a stepped furnace.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a cement kiln solid waste treatment device; the cement kiln comprises a cyclone cylinder, a kiln tail decomposing furnace and a rotary kiln; the solid waste disposal device is arranged beside the kiln tail decomposing furnace; the solid waste disposal device comprises a stepped furnace, a blanking structure is arranged at the upper end of the stepped furnace, and an air supply structure is arranged on one side of the stepped furnace, which is far away from the kiln tail decomposing furnace; the step furnace comprises a furnace body, and one side of the furnace body, which is close to the kiln tail decomposing furnace, is provided with an air inlet through hole; a tertiary air distributing opening is formed in one side of the furnace body, which is far away from the kiln tail decomposing furnace; the lower surface of the inner side of the furnace body is stepped; the inclined directions of the steps in the furnace body are sequentially distributed from the tertiary air distributing tuyere to the kiln tail decomposing furnace, and the steps are sequentially arranged from high to low from the tertiary air distributing tuyere to the kiln tail decomposing furnace in the longitudinal height; the blanking mechanism comprises a blanking pipeline arranged on the furnace body; the furnace body is also provided with a control valve plate structure, and the control valve plate structure comprises a gate valve arranged on the furnace body; the gate valve is positioned on one side of the air inlet through hole; and the gate valve penetrates through the furnace body and extends to the inner side of the furnace body.
The gate valve is connected with an adjusting mechanism; the adjusting mechanism comprises a hoisting rope connected to the gate valve.
The control valve plate structure further comprises a guide mechanism sleeved on the gate valve, the guide mechanism comprises a guide frame arranged on the furnace body, a guide channel is arranged on the guide frame, the guide channel is longitudinally arranged, and the guide channel penetrates through the guide frame; the gate valve is connected in the guide channel in a penetrating mode.
A guide sleeve is arranged in the guide channel; the guide sleeve is arranged in the guide channel; the guide sleeve penetrates through the furnace body and extends to the inner side of the furnace body.
A material scattering mechanism is arranged on the inner side of the stepped furnace; the material scattering mechanism comprises scattering rods arranged on the inner wall of the stepped furnace; the material scattering mechanism is arranged below the discharging mechanism.
The material scattering mechanism comprises a plurality of scattering rods, and the scattering rods are adjacent to each other and are distributed at intervals in a staggered mode.
The utility model has the advantages that;
the utility model discloses a cement kiln solid waste treatment device; the stepped furnace disclosed by the utility model can be used for pretreating solid waste and hazardous waste before the solid waste and hazardous waste enter the firing system, so that the influence of the solid waste and hazardous waste on the firing system is reduced, and the system is more stable; the clinker quality is improved; meanwhile, the treatment capacity of the solid waste and hazardous waste is improved, and the recycling, harmless and reduction treatment of the solid waste and hazardous waste is realized.
In addition, the arrangement of the valve plate structure is controlled, so that the airflow field in the step furnace can be adjusted, airflow flows with different strengths are provided according to actual production requirements, and the actual production requirements are met;
meanwhile, the utility model is also provided with a material scattering mechanism; the solid waste blanking device can disperse solid waste blanking, and the problems that solid waste blanking is concentrated, is not dispersed and is not easy to burn are solved.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a schematic view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a schematic structural view of the present invention in use.
FIG. 4 is a schematic view of the structure of the decomposing furnace according to the present invention when it is connected thereto.
The labels in the above figures are:
1. cyclone 2, decomposing furnace 3, rotary kiln 4 and step furnace.
Detailed Description
The following description of preferred embodiments of the utility model will be made in further detail with reference to the accompanying drawings.
A cement kiln solid waste treatment device; the cement kiln comprises a cyclone cylinder 1, a kiln tail decomposing furnace 2 and a rotary kiln 3; the solid waste disposal device is arranged beside the kiln tail decomposing furnace 2; the solid waste disposal device comprises a stepped furnace 4, a blanking structure is arranged at the upper end of the stepped furnace 4, and an air supply structure is arranged on one side of the stepped furnace 4, which is far away from the kiln tail decomposing furnace 2; the step furnace 4 comprises a furnace body 41, and an air inlet through hole is formed in one side of the furnace body 41 close to the kiln tail decomposing furnace 2; a tertiary air distributing opening 44 is formed in one side of the furnace body 41, which is far away from the kiln tail decomposing furnace 2; the lower surface of the inner side of the furnace body 41 is in a step shape; the inclined directions of the steps in the furnace body 41 are sequentially distributed from the tertiary air distributing port 44 to the kiln tail decomposing furnace 2, and the steps are sequentially arranged from high to low from the tertiary air distributing port 44 to the kiln tail decomposing furnace 2 in the longitudinal height; the blanking mechanism comprises a blanking pipeline 45 arranged on the furnace body 41; the furnace body 41 is further provided with a control valve plate structure 42, and the control valve plate structure 42 comprises a gate valve 421 arranged on the furnace body 41; the gate valve 421 is arranged at one side of the air inlet through hole; and the gate valve 421 passes through the furnace body 41 and extends to the inner side of the furnace body 41; the utility model discloses a cement kiln solid waste treatment device; the stepped furnace 4 disclosed by the utility model can be used for pretreating solid waste and hazardous waste before the solid waste and hazardous waste enter the firing system, so that the influence of the solid waste and hazardous waste on the firing system is reduced, and the system is more stable; the clinker quality is improved; meanwhile, the treatment capacity of the solid waste and hazardous waste is improved, and the recycling, harmless and reduction treatment of the solid waste and hazardous waste is realized; in addition, the arrangement of the valve plate structure 42 is controlled, so that the airflow field in the step furnace 4 can be adjusted, airflow processes with different strengths can be provided according to actual production needs, and the actual production needs are met better.
Concretely; the disclosed cement kiln solid waste treatment device is suitable for being used in a cement kiln burning system; in addition, the cement kiln comprises a cyclone cylinder 1, a kiln tail decomposing furnace 2 and a rotary kiln 3;
the solid waste disposal device of the cement kiln is arranged beside a kiln tail decomposing furnace 2; the solid waste disposal device comprises a step furnace 4, wherein a blanking structure is arranged at the upper end of the step furnace 4, and the blanking structure comprises a solid waste dangerous waste blanking port arranged on the upper plane of the step furnace 4; in addition, an air supply structure is arranged on one side of the stepped furnace 4, which is far away from the kiln tail decomposing furnace 2; the air supply structure is mainly the existing structure and aims to supply air to the step furnace 4 and the decomposing furnace 2;
in addition, the front side surface of the step furnace 4 is provided with a tertiary air distributing opening 44; the rear side surface of the stepped furnace 4 is communicated with the kiln tail decomposing furnace 2; the lower surface of the stepped furnace 4 is stepped, and the inclined direction of the step is from the tertiary air distributing port 44 to the kiln tail decomposing furnace 2 from high to low; that is; the step furnace 4 comprises a furnace body 41, wherein an air inlet through hole is formed in one side of the furnace body 41, which is close to the kiln tail decomposing furnace 2; a tertiary air distributing opening 44 is formed in one side, away from the kiln tail decomposing furnace 2, of the furnace body 41; the lower surface of the inner side of the furnace body 41 is in a step shape; the inclined directions of the steps in the furnace body 41 are sequentially distributed from the tertiary air distributing port 44 to the kiln tail decomposing furnace 2, and the steps are sequentially arranged from high to low from the tertiary air distributing port 44 to the kiln tail decomposing furnace 2 in the longitudinal height; specifically, the lower end of the stepped furnace 4 is in a stair-like structure, and the height of one side close to the tertiary air distributing opening 44 is higher; the height reference standard is along the longitudinal direction and takes a horizontal plane as a reference; meanwhile, the high-low contrast standard is based on a step plane.
Meanwhile, the blanking mechanism comprises a blanking pipeline 45 arranged on the furnace body 41; the discharging pipeline 45 is arranged in the solid waste dangerous waste discharging opening; mainly used for solid waste to enter the step furnace 4.
In addition, in the present invention, the furnace body 41 is further provided with a control valve plate structure 42, and the control valve plate structure 42 includes a gate valve 421 disposed on the furnace body 41; the gate valve 421 is arranged at one side of the air inlet through hole; and the gate valve 421 passes through the furnace body 41 and extends to the inner side of the furnace body 41; according to the utility model, through the arrangement of the control valve plate structure 42, the control of the air supply quantity of the stepped furnace 4 to the kiln tail decomposing furnace 2 can be well realized, and the flow of the stepped furnace 4 is controlled at the same time, so that the airflow field of the stepped furnace 4 can be controlled; specifically, the gate valve 421 is arranged between the solid waste disposal device and the decomposing furnace 2, so that the air flow is guided to flow downwards and is closer to the surface of solid waste, the combustion and decomposition of the solid waste are facilitated, in addition, the occurrence of vortex can be avoided, and the stepped dust accumulation phenomenon is reduced or eliminated; in addition, the internal flow field of the solid waste disposal device is controllable and adjustable; the internal gas flow in the step furnace 4 and the decomposing furnace 2 is controlled by adjusting the position of the gate valve 421, and the internal gas flow field of the whole device is further controlled.
When in specific use; the solid waste and dangerous waste enter the step furnace 4 through a pumping device, and are turned over by means of the injection of high-pressure air and enter the next step; the solid waste hazardous waste calcining heat source is mainly characterized in that a part of tertiary air at 900-1150 ℃ is introduced into the stepped furnace 4, the solid waste hazardous waste gradually loses water and combustible substances to burn under the calcining of high-temperature gas, and finally the residual slag enters the decomposing furnace 2.
In addition, in order to facilitate the injection of high-pressure air, a plurality of air cannons 48 are arranged on each stage of the step furnace 4; the air cannon 48, also known as air flow-aid device, arch-breaking device, block-removing device, is to directly rush into the block fault area of the bulk material storage with the speed of the compressed gas which is suddenly ejected, which exceeds a Mach (sonic speed), the expanding shock wave which is suddenly released overcomes the static friction of the material, and the material in the container is recovered to flow again; in the utility model, the number of the air cannons 48 on each stage of ladder is 1-4; two standby air cannons 48 are respectively arranged on two side surfaces of each step; air cannon 48 and backup air cannon 48 setup: initially, 1-4 air cannons 48 are arranged on each step, the gas quantity of each air cannon 48 is 0.1-0.3 m & lt 3 & gt, and the gas pressure is 0.15-0.7 MPa; air cannon 48 standby holes are formed in two sides of each step, and a standby air cannon 4810 is not initially installed; when necessary, the air cannon 4810 is additionally arranged to increase the tumbling momentum of the solid waste and hazardous waste and change the tumbling direction.
In addition, the structure of the step furnace 4 in the solid waste device disclosed by the utility model is shown in the attached drawings.
The number of steps in the step furnace 4 is 3-15.
In addition, as a preferable mode, the blanking mechanism of the utility model comprises an emergency material blanking port 46 arranged on the furnace body 41; correspond to be equipped with emergent unloading pipeline 45 in this feed opening, emergent unloading pipeline 45's effect: when the temperature in the stepped furnace 4 is high and the crust is generated by observation, the local high temperature in the stepped furnace 4 is adjusted through C4 material distribution.
In addition, a manhole door 47 is provided on one side surface of the stepped furnace 4 of the present invention; the manhole door 47 is used for facilitating entry and exit of constructors during masonry construction or equipment maintenance of the interior of the ladder, and can perform good sealing during normal production.
And chamfers are arranged at the corners of each step in the step furnace 4. Every ladder all sets up the chamfer in the refractory material masonry process of step furnace 4, does benefit to the useless roll of solid useless danger.
Further, in the present invention, the gate valve 421 is connected to an adjusting mechanism; the adjusting mechanism comprises a hoisting rope connected to the gate valve 421; the hoisting rope can be connected with driving parts such as a winch and the like; the gate valve 421 of the utility model is connected with an adjusting mechanism which can adjust the position of the gate valve 421 along the longitudinal direction, thereby controlling the opening of the air inlet through hole, controlling the internal gas flow of the step furnace 4 and the decomposing furnace 2 by adjusting the position of the gate valve 421, and further controlling the internal gas flow field of the whole device.
Further, in the present invention, the control valve plate structure 42 further includes a guiding mechanism sleeved on the gate valve 421, the guiding mechanism includes a guiding frame 422 disposed on the furnace body 41, the guiding frame 422 is provided with a guiding channel, the guiding channel is disposed along the longitudinal direction, and the guiding channel penetrates through the guiding frame 422; the gate valve 421 is connected in the guide channel in a penetrating manner; the guide frame 422 is arranged to play a good limiting role and avoid hoisting deviation and shaking of the gate valve 421, and particularly, the guide frame 422 is arranged above the furnace body 41, and during implementation, the gate valve 421 is arranged inside the furnace body 41 through the guide channel, so that a good limiting and positioning effect is achieved.
Further, in the present invention, a guide sleeve 423 is provided in the guide passage; the guide sleeve 423 is arranged in the guide channel; the guide sleeve 423 extends to the inner side of the furnace body 41 through the furnace body 41; according to the utility model, through the arrangement of the guide sleeve 423, a good limiting effect is achieved, and the offset shaking of the lower end of the gate valve 421 is avoided.
Further, a material scattering mechanism 43 is arranged on the inner side of the stepped furnace 4 in the utility model; the material scattering mechanism 43 includes a scattering rod 431 disposed on the inner wall of the stepped furnace 4; the utility model is also provided with a material scattering mechanism 43; the solid waste can be dispersed during blanking, and the problems that the solid waste is concentrated, not dispersed and not easy to burn are solved; in addition, the material scattering mechanism 43 is arranged below the blanking mechanism in the utility model; due to the arrangement mode, the solid waste can be well and conveniently scattered, and the solid waste is prevented from being discharged in a centralized manner.
Further, in the present invention, the material scattering mechanism 43 includes a plurality of scattering rods 431, and the scattering rods 431 are disposed at intervals in a staggered manner; by the arrangement, the situation that the blanking of the solid waste materials is influenced due to the excessive concentration of the scattering rods 431 is avoided; the accumulation of solid waste materials on the scattering rod 431 is avoided.
It is clear that the specific implementation of the utility model is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the utility model.
Claims (6)
1. A cement kiln solid waste treatment device; the cement kiln comprises a cyclone cylinder, a kiln tail decomposing furnace and a rotary kiln; the device is characterized in that the solid waste disposal device is arranged beside the kiln tail decomposing furnace; the solid waste disposal device comprises a stepped furnace, a blanking structure is arranged at the upper end of the stepped furnace, and an air supply structure is arranged on one side of the stepped furnace, which is far away from the kiln tail decomposing furnace; the step furnace comprises a furnace body, and one side of the furnace body, which is close to the kiln tail decomposing furnace, is provided with an air inlet through hole; a tertiary air distributing opening is formed in one side of the furnace body, which is far away from the kiln tail decomposing furnace; the lower surface of the inner side of the furnace body is stepped; the inclined directions of the steps in the furnace body are sequentially distributed from the tertiary air distributing tuyere to the kiln tail decomposing furnace, and the steps are sequentially arranged from high to low from the tertiary air distributing tuyere to the kiln tail decomposing furnace in the longitudinal height; the blanking mechanism comprises a blanking pipeline arranged on the furnace body; the furnace body is also provided with a control valve plate structure, and the control valve plate structure comprises a gate valve arranged on the furnace body; the gate valve is positioned on one side of the air inlet through hole; and the gate valve penetrates through the furnace body and extends to the inner side of the furnace body.
2. The cement kiln solid waste treatment device according to claim 1; the device is characterized in that the gate valve is connected with an adjusting mechanism; the adjusting mechanism comprises a hoisting rope connected to the gate valve.
3. The cement kiln solid waste treatment device according to claim 2; the control valve plate structure is characterized by further comprising a guide mechanism sleeved on the gate valve, wherein the guide mechanism comprises a guide frame arranged on the furnace body, a guide channel is arranged on the guide frame, the guide channel is longitudinally arranged, and the guide channel penetrates through the guide frame; the gate valve is connected in the guide channel in a penetrating mode.
4. The cement kiln solid waste treatment device according to claim 3; the device is characterized in that a guide sleeve is arranged in the guide channel; the guide sleeve is arranged in the guide channel; the guide sleeve penetrates through the furnace body and extends to the inner side of the furnace body.
5. The cement kiln solid waste treatment device according to claim 1; the device is characterized in that a material scattering mechanism is arranged on the inner side of the stepped furnace; the material scattering mechanism comprises scattering rods arranged on the inner wall of the stepped furnace; the material scattering mechanism is arranged below the discharging mechanism.
6. The cement kiln solid waste treatment device according to claim 5; the material scattering mechanism is characterized by comprising a plurality of scattering rods, wherein the scattering rods are distributed at intervals in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220730677.0U CN216954042U (en) | 2022-03-30 | 2022-03-30 | Cement kiln solid waste treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220730677.0U CN216954042U (en) | 2022-03-30 | 2022-03-30 | Cement kiln solid waste treatment device |
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| CN216954042U true CN216954042U (en) | 2022-07-12 |
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| CN202220730677.0U Active CN216954042U (en) | 2022-03-30 | 2022-03-30 | Cement kiln solid waste treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231988A (en) * | 2023-09-14 | 2023-12-15 | 山东美森资源综合利用有限公司 | Synchronous-feeding continuous dangerous waste feeding cement kiln incineration device and process |
-
2022
- 2022-03-30 CN CN202220730677.0U patent/CN216954042U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117231988A (en) * | 2023-09-14 | 2023-12-15 | 山东美森资源综合利用有限公司 | Synchronous-feeding continuous dangerous waste feeding cement kiln incineration device and process |
| CN117231988B (en) * | 2023-09-14 | 2024-03-05 | 山东美森资源综合利用有限公司 | Synchronous-feeding continuous dangerous waste feeding cement kiln incineration device and process |
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