Tail gas treatment device in inositol production

Abstract

The utility model discloses a tail gas treatment device in inositol production, and relates to the technical field of tail gas treatment devices, an adsorption inlet of a zeolite rotating wheel is communicated with a tail gas inlet pipeline, a desorption outlet of the zeolite rotating wheel is communicated with a plasma deodorization device through a pipeline, and an outlet of the plasma deodorization device is communicated with an activated carbon adsorption device through a pipeline. An outlet of the activated carbon adsorption device is communicated with an induced draft fan through a pipeline; a desorption inlet of the zeolite rotating wheel is communicated with a steam heater through a pipeline; an inlet of the steam heater is communicated with an air feeder through a pipeline. The tail gas is adsorbed, desorbed, destroyed and deodorized, so that organic substances which are greatly harmful to the environment and a human body are removed, and the tail gas treatment device is environment-friendly, high in treatment efficiency and simple to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment devices, in particular to a tail gas treatment device in inositol production. Background Art

[0002] Inositol is an important vitamin required by higher animals. Inositol can promote fat metabolism and reduce the cholesterol content in the blood. It is also used as an anti-fatty liver drug for the treatment of cirrhosis, hepatitis, high cholesterol, excessive fat and vascular sclerosis. In addition to being used directly as a drug, such as inositol tablets, hepatol, and liver-soothing tablets, inositol is also used as a pharmaceutical intermediate to make many drugs, such as nicotinic acid inositol ester, Maitong, and the anticancer drug paclitaxel.

[0003] Corn soaking water is a waste product produced during the wet production of corn starch. It contains rich inositol resources. The corn soaking water is passed through a weak alkaline ion exchange resin column to adsorb the phytic acid in it, and then potassium chloride solution or hydrochloric acid solution is used as a desorbent to desorb the phytic acid. The collected desorbed liquid is filtered through an ultrafiltration membrane and concentrated through a nanofiltration membrane to obtain a potassium phytate solution, which is then hydrolyzed to obtain inositol. However, ammonia nitrogen organic waste gas is generated during the production of inositol. If it is not treated and directly discharged into the air, it will cause indelible damage to human health, water quality and the ecosystem. Summary of the invention

[0004] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a device for treating tail gas in the production of inositol is provided, which greatly reduces the harm to human health and is environmentally friendly by treating the tail gas in the production of inositol.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] An exhaust gas treatment device for inositol production comprises a zeolite rotor, an adsorption inlet of the zeolite rotor is connected to an exhaust gas intake pipeline, a desorption outlet of the zeolite rotor is connected to a plasma deodorization device through a pipeline, an outlet of the plasma deodorization device is connected to an activated carbon adsorption device through a pipeline, and an outlet of the activated carbon adsorption device is connected to an induced draft fan through a pipeline;

[0007] The desorption inlet of the zeolite wheel is connected to a steam heater through a pipeline, and the inlet of the steam heater is connected to a blower through a pipeline.

[0008] As an improved technical solution, the adsorption outlet of the zeolite wheel is connected to the activated carbon adsorption device through a pipeline.

[0009] As an improved technical solution, the exhaust gas intake pipe is connected to the bottom inlet of the spray absorption tower, the bottom outlet of the spray absorption tower is connected to a circulation pump through a pipe, the outlet of the circulation pump is connected to the upper inlet of the spray absorption tower through a pipe, and the top gas phase outlet of the spray absorption tower is connected to the zeolite wheel through a pipe.

[0010] As an improved technical solution, the top inlet of the spray absorption tower is connected to the alkali liquid tank through a material transfer pump, and the outlet of the circulation pump is connected to the absorption liquid temporary storage tank through a pipeline.

[0011] As an improved technical solution, a heat exchanger is provided on the pipeline between the spray absorption tower and the zeolite rotor.

[0012] As an improved technical solution, the condensate outlet of the steam heater is connected to the jacket inlet of the heat exchanger through a condensate pipe.

[0013] As a preferred technical solution, the desorption outlet of the zeolite rotor is connected to the adsorption inlet of the zeolite rotor through a pipeline.

[0014] As a preferred technical solution, the outlet of the plasma deodorization device is connected to the adsorption inlet of the zeolite wheel through a pipeline.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model discloses an inositol production tail gas treatment device, comprising a zeolite rotor, the adsorption inlet of the zeolite rotor is connected to a tail gas intake pipe, the desorption outlet of the zeolite rotor is connected to a plasma deodorization device through a pipe, the outlet of the plasma deodorization device is connected to an activated carbon adsorption device through a pipe, the outlet of the activated carbon adsorption device is connected to an induced draft fan through a pipe; the desorption inlet of the zeolite rotor is connected to a steam heater through a pipe, the inlet of the steam heater is connected to a blower through a pipe. Inositol tail gas enters the zeolite rotor through the tail gas intake pipe, the adsorption pores of the zeolite molecular sieve adsorb organic substances in the inositol tail gas, after the zeolite molecular sieve is saturated with adsorption, the air discharged from the blower is heated by the steam heater and then sent to the zeolite rotor, the adsorbed organic substances are desorbed, the desorbed organic substances enter the plasma deodorization device, under the action of plasma, the organic components are destroyed, and then enter the activated carbon adsorption device for deodorization and are sent to the chimney by the induced draft fan for discharge. By adsorbing, desorbing, destroying and deodorizing the exhaust gas, organic substances that are harmful to the environment and human body are removed. It is environmentally friendly, has high treatment efficiency and is easy to operate.

[0017] The adsorption outlet of the zeolite wheel of the utility model is connected to the activated carbon adsorption device through a pipeline, and the wind filtered by the drum of the zeolite wheel is also sent into the activated carbon adsorption device for deodorization before being discharged, which is environmentally friendly.

[0018] The tail gas intake pipeline is connected to the bottom inlet of the spray absorption tower, the bottom outlet of the spray absorption tower is connected to a circulation pump through a pipeline, the outlet of the circulation pump is connected to the upper inlet of the spray absorption tower through a pipeline, and the top gas phase outlet of the spray absorption tower is connected to the zeolite rotor through a pipeline. The top inlet of the spray absorption tower is connected to an alkali liquid tank through a transfer pump, and the outlet of the circulation pump is connected to an absorption liquid temporary storage tank through a pipeline. The alkali liquid circulates in the spray absorption tower to absorb small particles and pollutants in the tail gas, and the tail gas is pretreated to prevent particulate impurities from entering the zeolite rotor and clogging the adsorption channels of the zeolite molecular sieve. In addition, part of the volatile organic matter is absorbed through pretreatment, which reduces the difficulty of subsequent treatment of organic matter and makes the treatment more thorough.

[0019] A heat exchanger is provided on the pipeline between the spray absorption tower and the zeolite rotor, and the condensate outlet of the steam heater is connected to the jacket inlet of the heat exchanger through the condensate pipeline. The condensate generated by the steam heater has a certain amount of thermal energy. By using this part of the thermal energy to preheat the tail gas entering the zeolite rotor, the energy consumption of the subsequent steam heater is reduced, the production cost is reduced, and the tail gas has a better adsorption effect after being preheated, thereby improving the tail gas treatment effect.

[0020] The desorption outlet of the zeolite wheel is connected to the adsorption inlet of the zeolite wheel through a pipeline, and the outlet of the plasma deodorization device is connected to the adsorption inlet of the zeolite wheel through a pipeline. By re-adsorbing the gas desorbed by the zeolite wheel and the gas treated by the plasma deodorization device, the tail gas treatment effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0023] Among them: 1. Zeolite wheel; 2. Exhaust gas intake pipe; 3. Plasma deodorization device; 4. Activated carbon adsorption device; 5. induced draft fan; 6. Steam heater; 7. Blower; 8. Spray absorption tower; 9. Circulation pump; 10. Alkali liquid tank; 11. Absorption liquid temporary storage tank; 12. Heat exchanger; 13. Condensate pipeline; 14. Transfer pump. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] like Figure 1 As shown, an exhaust gas treatment device in inositol production includes a zeolite rotor 1, the adsorption inlet of the zeolite rotor 1 is connected to an exhaust gas intake pipe 2, the desorption outlet of the zeolite rotor 1 is connected to a plasma deodorization device 3 through a pipe, the outlet of the plasma deodorization device 3 is connected to an activated carbon adsorption device 4 through a pipe, and the outlet of the activated carbon adsorption device 4 is connected to an induced draft fan 5 through a pipe; the desorption inlet of the zeolite rotor 1 is connected to a steam heater 6 through a pipe, and the inlet of the steam heater 6 is connected to a blower 7 through a pipe. The inositol tail gas enters the zeolite wheel 1 through the tail gas inlet pipe 2. The adsorption pores of the zeolite molecular sieve will adsorb the organic substances in the inositol tail gas. After the zeolite molecular sieve is saturated with adsorption, the air discharged by the blower 7 is heated by the steam heater 6 and then sent to the zeolite wheel 1 to desorb the adsorbed organic substances. The desorbed organic substances enter the plasma deodorization device 3. Under the action of plasma, the organic components are destroyed. Then, they enter the activated carbon adsorption device 4 for deodorization and are sent to the chimney by the induced draft fan 5 for discharge. By adsorbing, desorbing, destroying and deodorizing the tail gas, organic substances that are harmful to the environment and human body are removed. It is environmentally friendly, has high processing efficiency and is simple to operate.

[0026] The adsorption outlet of the zeolite wheel 1 is connected to the activated carbon adsorption device 4 through a pipeline. The wind filtered by the drum of the zeolite wheel 1 is also sent into the activated carbon adsorption device 4 for deodorization before being discharged, which is environmentally friendly.

[0027] The tail gas inlet pipe 2 is connected to the bottom inlet of the spray absorption tower 8, and the bottom outlet of the spray absorption tower 8 is connected to the circulation pump 9 through a pipeline. The outlet of the circulation pump 9 is connected to the upper inlet of the spray absorption tower 8 through a pipeline, and the top gas phase outlet of the spray absorption tower 8 is connected to the zeolite rotor 1 through a pipeline. The top inlet of the spray absorption tower 8 is connected to the alkali liquid tank 10 through a transfer pump 14, and the outlet of the circulation pump 9 is connected to the absorption liquid temporary storage tank 11 through a pipeline. The alkali liquid is circulated in the spray absorption tower 8 to absorb small particles and pollutants in the tail gas. By pre-treating the tail gas, particulate impurities are prevented from entering the zeolite rotor 1 and clogging the adsorption channels of the zeolite molecular sieve. In addition, part of the volatile organic matter is absorbed by pre-treatment, which reduces the difficulty of subsequent treatment of organic matter and makes the treatment more thorough. The alkali liquid tank 10 replenishes the liquid level of the spray absorption tower 8, and the absorption liquid temporary storage tank 11 temporarily stores the adsorbed alkali liquid for subsequent treatment.

[0028] A heat exchanger 12 is provided on the pipeline between the spray absorption tower 8 and the zeolite rotor 1, and the condensate outlet of the steam heater 6 is connected to the jacket inlet of the heat exchanger 12 through the condensate pipeline 13. The condensate generated by the steam heater 6 has a certain amount of thermal energy. By using this part of the thermal energy to preheat the tail gas entering the zeolite rotor 1, the energy consumption of the subsequent steam heater 6 is reduced, the production cost is reduced, and the tail gas has a better adsorption effect after being preheated, thereby improving the tail gas treatment effect.

[0029] The desorption outlet of the zeolite wheel 1 is connected to the adsorption inlet of the zeolite wheel 1 through a pipeline, and the outlet of the plasma deodorization device 3 is connected to the adsorption inlet of the zeolite wheel 1 through a pipeline. By re-adsorbing the gas desorbed from the zeolite wheel 1 and the gas treated by the plasma deodorization device 3, the treatment effect of the tail gas is better.

[0030] It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

Claims

1. A tail gas treatment device for inositol production, characterized in that: It comprises a zeolite rotor, the adsorption inlet of the zeolite rotor is connected to an exhaust gas intake pipeline, the desorption outlet of the zeolite rotor is connected to a plasma deodorization device through a pipeline, the outlet of the plasma deodorization device is connected to an activated carbon adsorption device through a pipeline, and the outlet of the activated carbon adsorption device is connected to an induced draft fan through a pipeline; The desorption inlet of the zeolite wheel is connected to a steam heater through a pipeline, and the inlet of the steam heater is connected to a blower through a pipeline.

2. A tail gas treatment device for inositol production as claimed in claim 1, characterized in that: The adsorption outlet of the zeolite wheel is connected to the activated carbon adsorption device through a pipeline.

3. A tail gas treatment device for inositol production as claimed in claim 1, characterized in that: The tail gas intake pipeline is connected to the bottom inlet of the spray absorption tower, the bottom outlet of the spray absorption tower is connected to a circulation pump through a pipeline, the outlet of the circulation pump is connected to the upper inlet of the spray absorption tower through a pipeline, and the top gas phase outlet of the spray absorption tower is connected to the zeolite wheel through a pipeline.

4. A tail gas treatment device for inositol production as claimed in claim 3, characterized in that: The top inlet of the spray absorption tower is connected to an alkali liquid tank through a material transfer pump, and the outlet of the circulation pump is connected to an absorption liquid temporary storage tank through a pipeline.

5. A tail gas treatment device for inositol production as claimed in claim 3, characterized in that: A heat exchanger is arranged on the pipeline between the spray absorption tower and the zeolite rotor.

6. A tail gas treatment device for inositol production as claimed in claim 5, characterized in that: The condensate outlet of the steam heater is connected to the jacket inlet of the heat exchanger through a condensate pipe.

7. A tail gas treatment device for inositol production as claimed in claim 1, characterized in that: The desorption outlet of the zeolite wheel is connected to the adsorption inlet of the zeolite wheel through a pipeline.

8. A tail gas treatment device for inositol production as claimed in claim 1, characterized in that: The outlet of the plasma deodorizing device is connected to the adsorption inlet of the zeolite wheel through a pipeline.

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