CN204799020U - Carbide slag stoving smoke treatment device - Google Patents

Abstract

The utility model relates to a treatment device for carbide slag drying flue gas, which comprises a bag type dust collector, a material conveying device, a calcium carbide slag dry powder warehouse, a desulfurizer storage bin and a controller. The feed port is connected with the feed port of the material conveying device, and the discharge port of the material conveying device is respectively connected with the desulfurizer storage bin and the feed port of the air chute conveyor through the tee pipe and pipeline branches A and B. The discharge port of the trough conveyor is connected to the feed port of the calcium carbide slag dry powder warehouse, and the calcium carbide slag dry powder warehouse and the desulfurizer storage bin are equipped with material level gauges, and the material level gauges are respectively connected to the input end of the controller , the output end of the controller is connected to No. 1 and No. 2 valves. The utility model uses the solid material collected in the flue gas as a desulfurizer, or collects the solid material in the calcium carbide slag dry powder warehouse as a raw material for recycling, which greatly improves economic benefits and reduces environmental pollution.

Description

Carbide slag drying flue gas treatment device

technical field

The utility model relates to a device for treating calcium carbide slag drying flue gas, which belongs to the technical field of carbide slag reuse.

Background technique

Carbide slag is a by-product of calcium carbide hydrolysis reaction in the production process of calcium carbide acetylene. Acetylene has active chemical properties and can be derived from thousands of organic chemicals. It is widely used. At present, with the wide application of chemical products, the discharge of carbide slag is gradually increasing. Carbide slag is a kind of poisonous and harmful substances such as strong alkalinity, sulfur-containing compounds, and phosphides. Therefore, if the carbide slag is not treated in time, it must be It will cause pollution to the environment and affect the implementation of energy conservation and emission reduction.

The use of carbide slag instead of limestone to prepare cement has been widely developed. The comprehensive use of carbide slag instead of limestone to produce cement is an effective way to deal with a large amount of carbide slag at present, but the remaining waste residue in the utilization process of carbide slag contains a large amount of CaO (about 55%) If it is not used rationally, it will not only cause waste of resources but also pollute the environment.

Utility model content

The utility model provides a calcium carbide slag drying flue gas treatment device aiming at the deficiencies and defects of the prior art.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a device for treating flue gas from carbide slag drying, including a bag filter, a material conveying device, a calcium carbide slag dry powder warehouse, a desulfurizer storage bin and a controller, The dust-containing gas inlet of the bag filter communicates with the dust-containing gas outlet of the calcium carbide slag drying device through a pipeline, and the discharge port of the ash hopper is connected with the feed port of the material conveying device, and the material conveying device The discharge port of the desulfurizer is respectively connected with the desulfurizer storage bin and the feed port of the air chute conveyor through the tee pipe and the pipeline, and the discharge port of the air chute conveyor is connected with the feed port of the calcium carbide slag dry powder storehouse. Connection, No. 2 valve is installed on the pipeline branch B connecting the feed inlet of the desulfurizer storage bin and the tee pipe, and No. 1 valve is installed on the pipeline branch A connecting the feed inlet of the air chute conveyor and the tee pipe. The calcium carbide slag dry powder warehouse and the desulfurizer storage bin are equipped with material level gauges. The material level gauges are respectively connected to the input terminals of the controller, and the output terminals of the controller are connected to the No. 1 valve and the No. 2 valve.

The bag filter includes a filter chamber, a filter bag arranged in the filter chamber, and an ash hopper fixed below the filter chamber. The top of the filter chamber is provided with a dusty gas inlet, and its side is provided with a purified gas outlet. There is a discharge port at the bottom of the ash hopper.

The material conveying device is composed of a zipper machine and a hoist, and the zipper machine is provided with materials by a bag filter, and its discharge port is connected with the feed port of the hoist, and the discharge port of the hoist is connected with the tee pipe. Feed port connection.

The pipeline branches A and B are both inclined, and the angle between the pipeline branch A and the vertical plane is smaller than the angle between the pipeline branch B and the vertical plane, and the pipeline The length of branch A is less than the length of pipeline branch B.

The beneficial effects of the utility model are:

1. The utility model transports the material in the bag filter to the hoist by the zipper machine. After the hoist is lifted to a certain height, the pipeline branches A and B are connected through the three-way pipe, and the pipeline branches A and B are There is a pneumatic valve on the top; when there is a lot of calcium carbide slag in the dust collection, it can enter the two branch pipes, and the switch of the two pneumatic valves controls the whereabouts of the material, and the operation is simple and convenient;

2. The utility model is controlled by the switch of two pneumatic valves, and the material first enters the desulfurizer storage bin. As a desulfurizer for coal power plants, it brings better economic benefits and reduces the exploitation and utilization of natural desulfurizers. ;When the desulfurizer storage bin is full of materials, the electric switch is automatically switched, and the materials enter the calcium carbide slag dry powder storage for recycling and reuse;

3. The utility model uses the solid material collected in the flue gas as a desulfurizer, or collects it in a calcium carbide slag dry powder warehouse as a raw material for recycling, which greatly improves economic benefits and reduces environmental pollution.

Description of drawings

Fig. 1 is the structure diagram of the utility model calcium carbide slag drying flue gas treatment device;

Fig. 2 is a structural schematic diagram of the bag filter of the utility model calcium carbide slag drying flue gas treatment device.

The meanings of the symbols in the figure are: 1. Bag filter, 2. Material conveying device, 3. Carbide slag dry powder warehouse, 4. Desulfurizer storage warehouse, 5. No. 1 valve, 6. No. 2 valve, 7. Air chute conveyor, wherein, 11, dusty gas inlet, 12, filter chamber, 13, ash hopper, 14, purified gas outlet, 21, zipper machine, 22, hoist, A is pipeline branch A, B is Pipe branch B.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Embodiment 1: Referring to Figures 1 and 2, a calcium carbide slag drying flue gas treatment device includes a bag filter 1, a material conveying device 2, a calcium carbide slag dry powder warehouse 3, a desulfurizer storage bin 4 and a controller (Fig. not shown), the dust-containing gas inlet 11 of the bag filter is connected with the dust-containing gas outlet of the calcium carbide slag drying device through a pipeline, and the discharge port of the ash hopper is connected with the feed port of the material conveying device connected, the discharge port of the material conveying device communicates with the desulfurizer storage bin 4 and the feed port of the air chute conveyor 7 respectively through a tee pipe and a pipeline, and the discharge port of the air chute conveyor 7 is connected with the feed port of the air chute conveyor 7 The feed port of the calcium carbide slag dry powder warehouse 3 is connected, and the pipe branch B connecting the feed port of the desulfurizer storage bin 4 and the tee pipe is provided with a No. 2 valve, which is connected to the feed port of the air chute conveyor and the tee The No. 1 valve is set on the pipeline branch A of the pipe, and there are level gauges in the calcium carbide slag dry powder warehouse and desulfurizer storage bin. The level gauges are respectively connected to the input end of the controller, and the output end of the controller is connected to No. 1 valve 5 and No. 2 valve 6. The No. 1 valve 5 and the No. 2 valve 6 can be electromagnetic valves or pneumatic valves. The controller can be a PLC programmable controller or a CPU central processing unit.

The bag filter includes a filter chamber 11, a filter bag arranged in the filter chamber 11, and an ash hopper 13 fixed below the filter chamber 12. The top of the filter chamber 12 is provided with a dusty gas inlet 11, and its side is A clean gas outlet 14 is provided, and a discharge port is provided at the bottom of the ash hopper 13 .

Described material conveying device is made up of zipper machine 21 and hoist 22, and described zipper machine 21 is provided material by bag type dust collector, and its outlet is connected with the inlet of hoist 22, and the outlet of hoist 22 Connect with the feed port of the three-way pipe.

The pipeline branches A and B are both inclined, and the angle between the pipeline branch A and the vertical plane is smaller than the angle between the pipeline branch B and the vertical plane, and the pipeline The length of branch A is less than the length of pipeline branch B.

The working process of the utility model: the drying flue gas obtained by preparing cement from calcium carbide slag enters the bag filter 1, and after the dusty gas enters the ash hopper 13 from the dusty gas inlet 11, a part of the coarser dust particles due to inertial collision, Naturally settling into the ash hopper 13, most of the dust particles rise with the airflow and enter the filter bag. After being filtered by the filter bag, the dust particles are blocked outside the filter bag, and the purified gas enters the filter box from the inside of the filter bag, and then passes through the filter bag. The purified gas is discharged from the outlet 14; the material in the ash hopper 13 is conveyed by the zipper machine 21 to the hoist 22, and the hoist 22 lifts the material to a certain height of 32 meters, and then enters the desulfurizer storage bin 4 through the pipeline branch B, as a coal power plant When the material level of the desulfurizer storage bin reaches 85%, the material level meter (not shown in the figure) feeds back a signal to the controller, and the controller controls the action of No. 1 valve 5, and the material is transported to the calcium carbide slag dry powder storage 3. When the material level of desulfurizer storage bin 4 is lower than 30%, the material level gauge feeds back a low material level signal to the controller, and the controller controls the action of the No. 2 valve, and the material is transported to the desulfurizer storage bin.

Claims (4)

1. A calcium carbide slag drying flue gas treatment device, comprising a bag filter, a material delivery device, a carbide slag dry powder warehouse, a desulfurizer storage bin and a controller, characterized in that: the bag filter contains The dust gas inlet is connected with the dusty gas outlet of the calcium carbide slag drying device through the pipeline, and the discharge port of the ash hopper is connected with the feed port of the material conveying device, and the discharge port of the material conveying device is connected through a tee pipe and The pipelines are respectively connected with the desulfurizer storage bin and the feed port of the air chute conveyor, and the discharge port of the air chute conveyor is connected with the feed port of the calcium carbide slag dry powder warehouse, and connected with the desulfurizer storage bin for feeding. The No. 2 valve is set on the pipe branch B of the mouth and the tee pipe, and the No. 1 valve is set on the pipe branch A connecting the feed port of the air chute conveyor and the tee pipe. The calcium carbide slag dry powder storage, desulfurizer The storage bins are equipped with material level gauges, and the material level gauges are respectively connected to the input ends of the controller, and the output ends of the controller are connected to the No. 1 valve and the No. 2 valve. 2. The calcium carbide slag drying flue gas treatment device according to claim 1, characterized in that: the bag filter comprises a filter chamber, a filter bag arranged in the filter chamber, and an ash hopper fixed below the filter chamber , the top of the filter chamber is provided with a dusty gas inlet, its side is provided with a purified gas outlet, and the bottom of the ash hopper is provided with a discharge port. 3. The calcium carbide slag drying flue gas treatment device according to claim 1, characterized in that: the material conveying device is composed of a zipper machine and a hoist, and the zipper machine is provided with materials by a bag filter, and the outflow The feed port is connected with the feed port of the elevator, and the discharge port of the elevator is connected with the feed port of the tee pipe. 4. The calcium carbide slag drying flue gas treatment device according to claim 1, characterized in that: the pipeline branches A and B are both inclined, and the clamp between the pipeline branch A and the vertical surface The angle between the pipeline branch B and the vertical plane is closely smaller than that of the pipeline branch A, and the length of the pipeline branch A is shorter than the length of the pipeline branch B.