CN219355740U - Drying rotary kiln - Google Patents

Abstract

The utility model provides a drying rotary kiln, relates to the technical field of rotary kilns, and solves the problem that the environment is polluted when the tail gas in the rotary kiln contains a large amount of particles and impurities and gas which harm air and is directly discharged into the air. The utility model comprises a drying rotary kiln body, and further comprises a tail gas treatment tower connected with a tail gas outlet of the drying rotary kiln body and used for treating tail gas generated by the drying rotary kiln body, wherein a plurality of guide plates perpendicular to an air inlet are arranged in the tail gas treatment tower, a spray pipe used for spraying the tail gas is arranged above the guide plates, the top of the tail gas treatment tower is connected with an air outlet pipe, and a filtering component used for filtering the sprayed tail gas is arranged in the air outlet pipe. The beneficial effects of the utility model are as follows: through being provided with the tail gas treatment tower, can handle the tail gas that the stoving rotary kiln produced, make it accord with the standard of emission, more environmental protection.

Description

Drying Rotary Kiln

technical field

The utility model relates to the technical field of rotary kilns, in particular to a drying rotary kiln.

Background technique

Existing activated carbon is divided into "wood charcoal" and "coal charcoal" in terms of its raw materials. Shells (such as coconut shells, fruit core shells, etc.) are used as raw materials, and activated carbon is produced through carbonization and activation processes. The existing "wood charcoal" production methods are divided into two types: physical method and chemical method. The physical method does not add chemical substances in the production of "wood charcoal", but only carbonizes and activates the raw materials at high temperature to form activated carbon. The existing "coal-based carbon" production methods are mainly physical methods, and the method is mainly to activate the coal-based raw materials through gas (such as steam, air, flue gas, etc.) at a certain high temperature. A drying rotary kiln is required for activation of activated carbon.

In the existing activated carbon rotary kiln, the tail gas in the rotary kiln contains a large amount of particles and impurities and gases that are harmful to the air, and if it is directly discharged into the air, it will pollute the environment.

Utility model content

The purpose of the utility model is to solve the problem of the existing activated carbon rotary kiln. The tail gas in the rotary kiln contains a large amount of particulate matter and impurities and gases harmful to the air, which will pollute the environment if it is directly discharged into the air.

In order to achieve the above object, the utility model adopts the following technical solutions:

A drying rotary kiln, which includes a drying rotary kiln body, is characterized in that it also includes a tail gas treatment tower connected to the tail gas outlet of the drying rotary kiln body for processing the tail gas generated by the drying rotary kiln body, the The drying rotary kiln body is connected to the air inlet of the tail gas treatment tower, and several deflectors perpendicular to the air inlet are arranged inside the tail gas treatment tower;

A spray pipe for spraying the tail gas is arranged above the deflector, and several spray nozzles are evenly distributed on the inner peripheral wall of the spray pipe, and a spray pipe for sending water to the spray pipe is installed on the outer wall of the tail gas treatment tower. A water pump, the outlet end of the water pump is connected to the spray pipe through a water delivery pipe, the water inlet end of the water pump is connected to a water suction pipe, and the water suction pipe is connected to an external water storage mechanism;

The bottom of the tail gas treatment tower is connected with a sewage pipe for discharging spray sewage, and the top of the tail gas treatment tower is connected with an outlet pipe, and the outlet pipe is provided with a filter assembly for filtering the tail gas after spraying.

A further improvement is: several deflectors are arranged at intervals in the width direction of the exhaust gas treatment tower, and the heights of the several deflectors gradually decrease from the side close to the air inlet along the width direction of the recovery device body.

A further improvement is that: the filter assembly includes a first filter net, a second filter net and a third filter net arranged in sequence in the air outlet pipe from bottom to top.

A further improvement is that: the first filter is a glass fiber filter.

A further improvement is: the second filter is a graphene filter.

A further improvement is that: the third filter screen is a polyvinyl chloride filter screen.

A further improvement is that: the air inlet is provided with an air inlet valve.

A further improvement is: a drain valve is connected to the drain pipe.

A further improvement is: an air outlet valve is connected to the air outlet pipe.

After adopting the above technical solution, compared with the existing technology, it has the following beneficial effects:

By setting up an exhaust gas treatment tower, the exhaust gas generated by the drying rotary kiln can be treated to make it meet the emission standards and be more environmentally friendly;

There is a deflector in the tail gas treatment tower to guide the tail gas and avoid the tail gas from messing up;

The tail gas treatment tower is equipped with a spray pipe, which can spray the particulate matter in the tail gas, better remove impurities in the tail gas, and spray water can also cool the tail gas;

The air outlet pipe is equipped with a filter assembly, which is provided with a three-layer filter net, which can filter the exhaust gas after spraying in multiple layers, with better filtering effect and more in line with the exhaust emission standards.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of tail gas treatment tower in the utility model;

Fig. 3 is the structural representation of air outlet pipe and filter assembly in the utility model;

Fig. 4 is a schematic structural view of the spray pipe in the present invention.

Explanation of reference signs: drying rotary kiln body 1, tail gas treatment tower 2, air inlet 3, sewage pipe 4, air outlet pipe 5, deflector 6, spray pipe 7, water delivery pipe 8, water pump 9, water suction pipe 10 , Drainage valve 41, air outlet valve 51, first filter screen 52, second filter screen 53, third filter screen 54, nozzle 71.

Detailed ways

Referring to Figures 1-4, the technical solution adopted in this specific embodiment is: drying rotary kiln, which includes a drying rotary kiln body 1, and also includes a device connected to the exhaust gas outlet of the drying rotary kiln body 1. The tail gas treatment tower 2 is used to process the tail gas generated by the drying rotary kiln body 1, the drying rotary kiln body 1 is connected to the air inlet 3 of the tail gas treatment tower 2, and the tail gas treatment tower 2 is equipped with several A deflector 6 perpendicular to the air inlet 3;

The top of the deflector 6 is provided with a spray pipe 7 for spraying the tail gas, and several spray nozzles 71 are evenly distributed on the inner peripheral wall of the spray pipe 7, and useful For the water pump 9 that sends water to the spray pipe 7, the water outlet end of the water pump 9 is connected with the spray pipe 7 through the water delivery pipe 8, and the water inlet end of the water pump 9 is connected with a suction pipe 10, and the water suction pipe 10 Connect with external water storage mechanism;

The bottom of the tail gas treatment tower 2 is connected with a sewage pipe 4 for discharging spray sewage, and the top of the tail gas treatment tower 2 is connected with an outlet pipe 5, and the outlet pipe 5 is provided with a filter assembly for filtering the tail gas after spraying .

Wherein, several deflectors 6 are arranged at intervals in the width direction of the tail gas treatment tower 2, and the heights of the several deflectors 6 gradually decrease from the side close to the air inlet 3 along the width direction of the recovery device body 1; Wherein, in the height direction, several deflectors 6 are located within the outlet range of the air outlet 3 .

Wherein, the filter assembly includes a first filter net 52 , a second filter net 53 , and a third filter net 54 sequentially arranged in the air outlet pipe 5 from bottom to top.

Wherein, the first filter 52 is a glass fiber filter.

Wherein, the second filter 53 is a graphene filter. The graphene filter has good antibacterial properties, can kill bacteria and viruses, and realize the purification of exhaust gas.

Wherein, the third filter screen 54 is a polyvinyl chloride filter screen.

Wherein, the air inlet 3 is provided with an air inlet valve.

Wherein, the blowdown pipe 4 is connected with a blowdown valve 41 .

Wherein, an air outlet valve 51 is connected to the air outlet pipe 5 .

The working principle of the utility model: when in use, the drying rotary kiln body will generate tail gas after activated carbonization of the activated carbon, and the tail gas enters the tail gas treatment tower through the air inlet, flows upward through the reverse flow of several deflectors, and passes through the water pump The external clean water is extracted and sent to the spray pipe, which is sprayed by the nozzle on the inner wall of the spray pipe to cool and spray the exhaust gas, spray the particles and other impurities in the exhaust gas downward, and then discharge it through the sewage pipe. After spraying The exhaust gas rises upwards and passes through the filter assembly in the outlet pipe. The glass fiber filter, graphene filter, and polyvinyl chloride filter in the filter assembly perform multi-layer filtration. The filtered exhaust is cleaner and meets the emission requirements. requirements, and then there is an outlet pipe for discharge.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The principle of the utility model, under the premise of not departing from the spirit and scope of the utility model, the utility model also has various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed for protection, and the utility model claims protection scope as defined by the appended claims and their equivalents. The parts of the utility model that are not described in detail are the known techniques of those skilled in the art.

Claims (9)

1. The rotary kiln of drying, it includes the rotary kiln body of drying, its characterized in that: the device comprises a rotary kiln body, a rotary kiln gas inlet, a rotary kiln gas outlet, a rotary kiln gas inlet and a rotary kiln gas outlet, wherein the rotary kiln gas outlet is connected with the rotary kiln gas outlet;

a spray pipe for spraying the tail gas is arranged above the guide plate, a plurality of spray heads are uniformly distributed on the inner peripheral wall of the spray pipe, a water pump for supplying water to the spray pipe is arranged on the outer side wall of the tail gas treatment tower, the water outlet end of the water pump is connected with the spray pipe through a water supply pipe, the water inlet end of the water pump is connected with a water suction pipe, and the water suction pipe is connected with an external water storage mechanism;

the tail gas treatment tower is characterized in that the bottom of the tail gas treatment tower is connected with a sewage discharge pipe for discharging sprayed sewage, the top of the tail gas treatment tower is connected with an air outlet pipe, and a filtering component for filtering the sprayed tail gas is arranged in the air outlet pipe.

2. The rotary kiln of claim 1, wherein: the guide plates are arranged at intervals in the width direction of the tail gas treatment tower, and the heights of the guide plates are sequentially reduced in a gradient manner along the width direction of the recovery device body from one side close to the air inlet.

3. The rotary kiln of claim 1, wherein: the filter assembly comprises a first filter screen, a second filter screen and a third filter screen which are sequentially arranged in the air outlet pipe from bottom to top.

4. A rotary kiln according to claim 3, wherein: the first filter screen is a glass fiber filter screen.

5. A rotary kiln according to claim 3, wherein: and the second filter screen is a graphene filter screen.

6. A rotary kiln according to claim 3, wherein: the third filter screen is a polyvinyl chloride filter screen.

7. The rotary kiln of claim 1, wherein: an air inlet valve is arranged on the air inlet.

8. The rotary kiln of claim 1, wherein: and the blow-down pipe is connected with a blow-down valve.

9. The rotary kiln of claim 1, wherein: and the air outlet pipe is connected with an air outlet valve.