CN215855818U

CN215855818U - Solid waste ceramsite pilot-scale continuous production line arrangement process suitable for being built in schools or scientific research institutions

Info

Publication number: CN215855818U
Application number: CN202122181616.1U
Authority: CN
Inventors: 宁彩珍
Original assignee: Tianjin Chengjian University
Current assignee: Tianjin Chengjian University
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-18
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a pilot-scale continuous production line arrangement process of solid waste ceramsite, which is suitable for being built in schools or scientific research institutions. The main equipment comprises a screw feeder, a bucket elevator, a double-shaft pre-wetting stirrer, a disc type ball forming machine, a large-inclination-angle belt conveyor, a natural gas rotary kiln, a vertical cooler, an electromagnetic vibration feeder, a quench tower, a pulse bag type dust collector, an active carbon filter bed and the like, wherein the screw feeder, the bucket elevator, the vertical cooler and the electromagnetic vibration feeder are all arranged in a pit, and the double-shaft pre-wetting stirrer is arranged on an aerial steel structure platform. The arrangement process flow is smooth, compact and attractive, strong in continuity, small in occupied area, small in investment and low in operation cost, and is suitable for being built in schools and scientific research institutions.

Description

Solid waste ceramsite pilot-scale continuous production line arrangement process suitable for being built in schools or scientific research institutions

Technical Field

The utility model relates to a process arrangement of a solid waste ceramsite production line, in particular to an arrangement process of a solid waste ceramsite pilot-scale continuous production line which can be built in schools or scientific research institutions.

Background

The production of the ceramsite by using the solid wastes is the mainstream direction of the ceramsite production at present and is one of the important means for the resource utilization of the solid wastes. A part of solid waste ceramsite such as fly ash ceramsite, sludge ceramsite, coal gangue ceramsite and the like is produced on a large scale, and gradually replaces natural resource ceramsite such as clay ceramsite, shale ceramsite and the like, and becomes the mainstream of the ceramsite market. However, as the research on solid waste ceramsite is further and further developed, more and more solid waste is used for preparing ceramsite, and the ceramsite is prepared by mixing and burning various solid wastes due to various solid wastes with various types, various components and different natures. Most experimental researches are carried out in a box furnace or a tubular resistance furnace, which is greatly different from large-scale production conditions and limits the industrialization of experimental results. On the other hand, from the perspective of talent training, the training of engineering practice ability and innovation ability of students is more and more urgent for higher education and national science and technology development, and at present, hardware for engineering training and production training of students is very deficient. Therefore, the pilot production line of the ceramsite is very necessary for research and talent culture.

At present, a few of ceramsite pilot-scale test production lines are mostly in enterprises, and the ceramsite pilot-scale test production lines are high in production capacity, high in operation cost, strong in raw material pertinence and not suitable for flexible and changeable experimental conditions and practical teaching. Recently, some colleges and scientific research institutions build small-scale ceramsite pilot-scale production lines in schools or institutions, such as Shandong university, Xian wall material research and design institute Co., Ltd, Tianjin cement industry design research institute Co., Ltd and the like, but the production lines are difficult to achieve continuity and integrity due to the limitation of sites and other conditions, only the discontinuous combination of a rotary kiln, a stirrer, a granulator and other host equipment is needed, and the adjustment and control of process parameters are different from the actual production. Therefore, it is necessary to provide a special arrangement process for establishing a pilot-scale continuous production line of solid waste ceramsite in a limited space of a school or a scientific research institution.

Disclosure of Invention

The utility model provides a pilot-scale continuous production line arrangement process for solid waste ceramsite, which is smooth in flow, compact, attractive, strong in continuity, small in occupied area, low in investment and operation cost and suitable for being built in schools and scientific research institutions, and solves the technical problems in the prior art.

The pilot-scale continuous production line arrangement process of the solid waste ceramsite in the scheme comprises a batching-stirring-balling system, a solid waste ceramsite roasting-cooling-collecting system and a kiln tail waste gas treatment system.

The batching-stirring-balling system comprises a batching bin 1, a screw feeder 2, a bucket elevator A3, a double-shaft pre-wetting stirrer 4, a disc-type balling machine 5 and a large-inclination-angle belt conveyor 6. The outlet of the proportioning bin 1 is connected with the inlet of a screw feeder 2, the outlet of the screw feeder 2 is connected with the inlet of a bucket elevator A3, the outlet of the bucket elevator A3 is connected with the inlet of a double-shaft pre-wetting stirrer 4, the outlet of the double-shaft pre-wetting stirrer 4 is connected with the inlet of a disc type granulator 5, the outlet of the disc type granulator 5 is connected with the inlet of a large-inclination-angle belt conveyor 6, and the outlet of the large-inclination-angle belt conveyor 6 is connected with the inlet of the tail part of a natural gas rotary kiln 7. The batching-stirring-balling system comprises equipment and devices which are arranged in a laboratory, a batching bin 1 is arranged on the ground in the laboratory, a spiral feeder 2 and a bucket elevator A3 are arranged in a pit in the laboratory, the spiral feeder 2 is arranged below the batching bin 1, a double-shaft pre-wetting stirrer 4 is arranged on a steel structure platform with proper height in the laboratory, a disc-type balling machine 5 is arranged on the ground below the steel structure platform where the double-shaft pre-wetting stirrer 4 is arranged, and a large-inclination-angle belt conveyor 6 is obliquely arranged on the ground in the laboratory.

The solid waste ceramsite roasting-cooling-collecting system comprises a natural gas rotary kiln 7, a natural gas combustor 8, a vertical cooler 9, a cooling fan 10, an electromagnetic vibration feeder 11, a bucket elevator B12 and a solid waste ceramsite product bin 13. An inlet at the tail part of the natural gas rotary kiln 7 is connected with an outlet of the large-inclination-angle belt conveyor 6, a natural gas combustor 8 is installed at the head part of the natural gas rotary kiln 7, an outlet at the head part of the natural gas rotary kiln 7 is connected with an inlet of a vertical cooler 9, an outlet of a cooling fan 10 is connected with an air inlet of the vertical cooler 9, an outlet of the vertical cooler 9 is connected with an inlet of an electromagnetic vibrating feeder 11, an outlet of the electromagnetic vibrating feeder 11 is connected with an inlet of a bucket elevator B12, and an outlet of the bucket elevator B12 is connected with an inlet of a solid waste ceramsite product bin 13. The solid waste ceramsite roasting-cooling-collecting system comprises equipment and devices, wherein except a cooling fan 10, the equipment is arranged on the ground outside a laboratory, the other equipment is arranged in the laboratory, a natural gas rotary kiln 7 is obliquely arranged on the ground in the laboratory, a vertical cooler 9, an electromagnetic vibration feeder 11 and a bucket elevator B12 are all arranged in a pit in the laboratory, an inlet of the vertical cooler 9 is arranged below an outlet of a kiln head of the natural gas rotary kiln 7, the electromagnetic vibration feeder 11 is arranged below the vertical cooler 9, an inlet of the bucket elevator B12 is arranged below an outlet of the electromagnetic vibration feeder 11, a solid waste ceramsite product bin 13 is arranged on the ground in the laboratory, and a feeding port of the solid waste ceramsite product bin 13 is arranged below a discharging port of the bucket elevator B12.

The kiln tail waste gas treatment system comprises a quench tower 14, a pulse bag type dust collector 15, an activated carbon filter bed 16, an induced draft fan 17 and a chimney 18. The tail of the natural gas rotary kiln 7 is connected with an inlet of a quenching tower 14, an outlet of the quenching tower 14 is connected with an inlet of a pulse bag type dust collector 15, an outlet of the pulse bag type dust collector 15 is connected with an inlet of an activated carbon filter bed 16, an outlet of the activated carbon filter bed 16 is connected with an inlet of an induced draft fan 17, and an outlet of the induced draft fan 17 is connected with an inlet of a chimney 18. The kiln tail waste gas treatment system comprises equipment and devices which are all arranged on the ground outside the laboratory chamber and are parallel to the wall surface direction.

The utility model has the advantages that: the production capacity of the pilot-scale continuous production line of the solid waste ceramsite is 100-150 kg/h, the inner diameter of the rotary kiln is 0.5-0.8 m, the length of the rotary kiln is 6-8 m, and the pilot-scale continuous production line of the solid waste ceramsite is small in scale, low in investment and low in operation cost. The batching-stirring-balling system and the solid waste ceramsite roasting-cooling-collecting system are arranged in a laboratory, the area of the laboratory is about 70-100 square meters, the layer height is 4.7-5.2 meters, the equipment and the devices of the two systems are smoothly arranged along the four walls in the experiment according to the material trend, no material returns and crosses exist, an unsealed square-shaped arrangement is formed, the continuous, smooth and compact production is ensured, a good environment is created for scientific research and teaching activities, and the overall layout is attractive. The kiln tail waste gas treatment system is arranged outside the laboratory room, the occupied external ground area is about 20-40 square meters, equipment and devices contained in the system are smoothly arranged along the parallel direction of the wall surface according to the trend of waste gas, the process is smooth and compact, the arrangement is attractive, and the space is saved. The external space is fully utilized, so that the internal space of a used laboratory is greatly reduced, the occupied area of the solid waste ceramsite pilot-scale continuous production line is small, the total occupied area is only 90-140 square meters, and only one laboratory with the area of 70-100 square meters and the floor height of 4.7-5.2 meters is needed.

Furthermore, the pilot-scale continuous production line of the solid waste ceramsite adopts 2 bucket elevators A3 and B17, and a large-inclination-angle belt conveyor 6, so that the occupied area is greatly reduced while the continuous production is ensured, the material conveying distance is short, and the arrangement is compact.

Further, the screw feeder 2, the bucket elevator A3, the vertical cooler 9, the electromagnetic vibration feeder 11 and the bucket elevator B12 of the solid waste ceramsite pilot-scale continuous production line are all arranged in a pit in a laboratory, and the double-shaft pre-wetting stirrer 4 is arranged on a steel structure platform with a proper height in the laboratory, so that underground space and vertical surface space in the laboratory are fully utilized, the space utilization rate is high, and the area and the floor height of the laboratory are greatly reduced.

Furthermore, the equipment and equipment contained in the batching-stirring-balling system and the solid waste ceramsite roasting-cooling-collecting system are arranged along four walls in the laboratory, so that a large space is reserved in the middle of the laboratory, the production operation and the equipment maintenance are convenient, and the fire safety and the personal safety are facilitated.

Furthermore, the laboratory where the pilot-scale continuous production line of the solid waste ceramsite is located is provided with two double-door entrances and exits, wherein one double-door entrance is a main entrance for personnel, personnel entering routes do not intersect with the production line at any time, the personnel can be evacuated quickly under the conditions of safety and danger, and the other double-door entrance is a secondary entrance and is provided with an outward opening door, so that the operation and maintenance of equipment near the door are not influenced.

Further, the natural gas rotary kiln 7 is arranged along the inner wall of one side with the window, and ventilation and heat dissipation and timely exhaust of leaked fuel gas are facilitated.

Further, wire and cable and water pipe set up at the laboratory top, practice thrift the laboratory area.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a view 1-1 of FIG. 1 of the present invention.

Fig. 3 is a view 2-2 of fig. 1 of the present invention.

Fig. 4 is a view from 3 to 3 of fig. 1 of the present invention.

Fig. 5 is a view from 4-4 of fig. 1 of the present invention.

Fig. 6 is a view from 5 to 5 of fig. 1 of the present invention.

In the figure, 1 is a proportioning bin, 2 is a screw feeder, 3 is a bucket elevator A, 4 is a double-shaft prewetting stirrer, 5 is a disc granulator, 6 is a large-inclination belt conveyor, 7 is a natural gas rotary kiln, 8 is a natural gas burner, 9 is a vertical cooler, 10 is a cooling fan, 11 is an electromagnetic vibration feeder, 12 is a bucket elevator B, 13 is a solid waste ceramsite product bin, 14 is a quench tower, 15 is a pulse bag type dust collector, 16 is an activated carbon filter bed, 17 is an induced draft fan, and 18 is a chimney.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings:

referring to fig. 1 to 6, the utility model provides a process for arranging a pilot-scale continuous production line of solid waste ceramsite, which can be built in schools or scientific research institutions, and comprises a batching-stirring-balling system, a solid waste ceramsite roasting-cooling-collecting system and a kiln tail waste gas treatment system. The batching-stirring-balling system comprises a batching bin 1, a screw feeder 2, a bucket elevator A3, a double-shaft pre-wetting stirrer 4, a disc-type balling machine 5 and a large-inclination-angle belt conveyor 6; the solid waste ceramsite roasting-cooling-collecting system comprises a natural gas rotary kiln 7, a natural gas combustor 8, a vertical cooler 9, a cooling fan 10, an electromagnetic vibration feeder 11, a bucket elevator B12 and a solid waste ceramsite product bin 13; the kiln tail waste gas treatment system comprises a quench tower 14, a pulse bag type dust collector 15, an activated carbon filter bed 16, an induced draft fan 17 and a chimney 18. The pretreated solid waste is sent into a proportioning bin 1, is sent into a double-shaft pre-wetting stirrer 4 through a screw feeder 2 and a bucket elevator 3, is fully stirred and mixed by adding water, is sent into a disc type ball forming mill 5 for granulation and ball forming after being stirred and mixed, wet raw material balls are slowly sent into a natural gas rotary kiln 7 through a large-inclination-angle belt conveyor 6, natural gas is sprayed into the kiln through a natural gas burner 8 at the kiln head to be combusted to form flame with certain length, rigidity and shape, the flame can be adjusted by adjusting the using amount and the using amount ratio of the natural gas and primary air to ensure that a temperature system (1100-1250 ℃) suitable for the sintered ceramsite is formed in the kiln, the wet raw material balls are dried, preheated and roasted in the rotary kiln, the roasted high-temperature ceramsite is discharged from the kiln head of the natural gas rotary kiln 7 and enters a vertical cooler 9, and is rapidly cooled to about room temperature plus 60 ℃ under cold air provided by a cooling fan 10, the cooled solid waste ceramsite products are sent into a solid waste ceramsite product bin 13 through an electromagnetic vibration feeder 11 and a bucket elevator 12 to be stored, waste gas at 400-700 ℃ generated by a natural gas rotary kiln 7 is discharged from the kiln tail, the waste gas is rapidly cooled to below 250 ℃ through a quenching tower 14, acid gas is removed at the same time, the quenching tower 14 adopts alkali liquor and is provided with a circulating pump and a liquid distribution tank, the alkali liquor in the quenching tower 14 absorbs sulfur dioxide, sulfur trioxide and hydrogen chloride gas in the waste gas, the cooled tail gas is dedusted by a pulse bag type dust collector 15 and then is adsorbed by an active carbon filter bed 16 to organic pollution gas and heavy metal such as dioxin in the flue gas, and the purified flue gas is sent into a chimney 18 through an induced draft fan 17.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A pilot-scale continuous production line arrangement process for solid waste ceramsite suitable for being built in schools or scientific research institutions comprises a batching-stirring-balling system, a solid waste ceramsite roasting-cooling-collecting system and a kiln tail waste gas treatment system, wherein the batching-stirring-balling system comprises a batching bin, a spiral feeder, a bucket elevator, a double-shaft prewetting stirrer, a disc pelletizer and a large-inclination-angle belt conveyor, the solid waste ceramsite roasting-cooling-collecting system comprises a natural gas rotary kiln, a natural gas combustor, a vertical cooler, a cooling fan, an electromagnetic vibration feeder, the bucket elevator and a solid waste ceramsite product bin, and the kiln tail waste gas treatment system comprises a quench tower, a pulse bag type dust collector, an activated carbon filter bed, an induced draft fan and a chimney.

2. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the outlet of a proportioning bin of the proportioning-stirring-balling system is connected with the inlet of a screw feeder, the outlet of the screw feeder is connected with the inlet of a bucket elevator, the outlet of the bucket elevator is connected with the inlet of a double-shaft pre-wetting stirrer, the outlet of the double-shaft pre-wetting stirrer is connected with the inlet of a disc-type balling machine, the outlet of the disc-type balling machine is connected with the inlet of a large-inclination-angle belt conveyor, and the outlet of the large-inclination-angle belt conveyor is connected with the inlet of the tail of the natural gas rotary kiln.

3. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the head of a natural gas rotary kiln of the solid waste ceramsite roasting-cooling-collecting system is provided with a natural gas burner, an outlet at the head of the natural gas rotary kiln is connected with an inlet of a vertical cooler, an outlet of a cooling fan is connected with an air inlet of the vertical cooler, an outlet of the vertical cooler is connected with an inlet of an electromagnetic vibrating feeder, an outlet of the electromagnetic vibrating feeder is connected with an inlet of a bucket elevator, and an outlet of the bucket elevator is connected with an inlet of a solid waste ceramsite product bin.

4. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the entry of kiln tail exhaust gas treatment system's quench tower and the tail connection of natural gas rotary kiln, the entry of quench tower exit linkage pulse bag dust collector, the entry of the exit linkage active carbon filter bed of pulse bag dust collector, the entry of the exit linkage draught fan of active carbon filter bed, the entry of the exit linkage chimney of draught fan.

5. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the batching-stirring-balling system and the solid waste ceramsite roasting-cooling-collecting system are arranged in a laboratory and are arranged along the wall to form an unsealed 'mouth' shape.

6. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the kiln tail waste gas treatment system is arranged outside the laboratory.

7. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the spiral feeder and the bucket elevator of the batching-stirring-balling system are both arranged in a pit in a laboratory, and the double-shaft pre-wetting stirrer is arranged on a steel structure platform in the laboratory.

8. The process for pilot-scale continuous production line arrangement of solid waste ceramsite suitable for being built in schools or scientific research institutions according to claim 1, wherein the process comprises the following steps: the vertical cooler, the electromagnetic vibration feeder and the bucket elevator of the solid waste ceramsite roasting-cooling-collecting system are all arranged in a pit in a laboratory.