Inositol production waste gas treatment device

Abstract

The utility model provides an inositol production waste gas treatment device which comprises two absorption mechanisms and a plasma deodorization mechanism, the plasma deodorization mechanism is arranged between the two absorption mechanisms and is sequentially connected with the two absorption mechanisms, each absorption mechanism comprises a kettle body, a kettle cover, an absorption pipe, a spray head, a liquid collecting tank and a water pump, the absorption pipe is arranged in the kettle body, and the spray head is arranged in the kettle body. And the absorption pipe is a snake-shaped absorption pipe. By optimizing the structural arrangement of the absorption mechanism and arranging the snakelike absorption pipe, the retention time of waste gas in the absorption mechanism is greatly prolonged, the multiple spray heads are arranged in the snakelike absorption pipe, the contact area of absorption liquid in the pipe and waste gas can be greatly increased in cooperation with filler, and the absorption effect of the absorption mechanism on the waste gas is effectively improved.

Description

Technical Field

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

[0002] Inositol, also known as cyclohexanehexol, is widely distributed in animals and plants and is a growth factor for animals and microorganisms. Inositol is a "biological active element" that participates in the body's metabolic activities and has multiple functions such as immunity, prevention and treatment of certain diseases. In the fermentation and food industries, it can be used to cultivate a variety of strains and promote the growth of yeast. If higher animals lack inositol, they will experience growth stagnation and hair loss. The human body's daily demand for inositol is 1-2g, and many health drinks and children's foods are added with trace amounts of inositol. The traditional production method of inositol is pressurized hydrolysis. Since the pressurized hydrolysis method has many years of practical experience in industrialized production, it is the main process technology used by domestic manufacturers, and the process is also constantly being improved in production. The general process of the pressurized hydrolysis method: Phytin (hydrolysis) → hydrolyzate (neutralization, filtration) → inositol solution (impurity removal and concentration, crystallization centrifugation) → crude inositol (dissolution and impurity removal, crystallization centrifugation) → fine products. Among them, hydrolysis and refining are two key steps. At present, inositol production is to extract phytic acid from corn soaking water, and phytic acid is neutralized with an appropriate amount of calcium hydroxide to generate phytin, and phytin and water are stirred evenly in a slurry state, and hydrolysis reaction occurs after high temperature and high pressure to generate inositol, phosphate and a small amount of phosphoric acid, and an appropriate amount of calcium hydroxide is added to neutralize, and solid calcium hydrogen phosphate is further generated. After solid-liquid separation, filtrate concentration crystallization finally obtains inositol with a purity of 99%. Some waste gases are generated during the hydrolysis process: methyl ether, methyl sulfide, methyl mercaptan, organic phosphide, etc. If these waste gases are directly discharged into the atmosphere, they will cause certain pollution to the environment. Common waste gas treatment usually sets 3 levels or more spray absorption devices, which covers a large area and costs a lot. Therefore, a waste gas treatment device for inositol production is proposed to improve the treatment rate of waste gas by the spray tower, streamline the number of equipment and reduce the treatment cost. Summary of the invention

[0003] The utility model aims to provide an inositol production waste gas treatment device to solve the above problems.

[0004] The utility model provides an inositol production waste gas treatment device, including two absorption mechanisms and a plasma deodorization mechanism. The plasma deodorization mechanism is arranged between the two absorption mechanisms and connected in sequence; the absorption mechanism includes a kettle body, a kettle cover, an absorption pipe, a spray head, a liquid collecting tank and a water pump, the absorption pipe is arranged in the kettle body, the absorption pipe is a serpentine absorption pipe, and the serpentine absorption pipe includes a plurality of horizontally placed straight pipes and a curved pipe connecting adjacent straight pipes. The bottom input end of the serpentine absorption pipe is connected to an air inlet, and the tube wall of the serpentine absorption pipe near the bottom of the kettle body is provided with a liquid outlet section, and the liquid outlet section is provided with a water filter hole. The top output end of the serpentine absorption pipe is connected to a funnel-shaped open container, the open container is fixed to the inner wall of the kettle body and the top of the open container is in contact with the kettle cover, and the kettle cover is provided with an air outlet directly above the open container. The top of the open container is provided with a first spray head, each of the straight pipes is provided with a second spray head, the serpentine absorption tube is provided with a first packing layer, the open container is provided with a second packing layer, and the second packing layer is provided under the first spray head. The liquid collecting tank is provided at the bottom of the kettle body, and the liquid collecting tank includes a water inlet and a water outlet. The water inlet is connected to the liquid outlet section, and the water outlet is respectively connected to the first spray head and the second spray head through a water delivery pipe, and the water pump is provided on the water delivery pipe.

[0005] Preferably, a wire mesh water remover is provided between the first spray head and the air outlet.

[0006] Preferably, the liquid collecting tank is also provided with a second water outlet.

[0007] Preferably, the absorption mechanism further comprises a liquid charger, and the output end of the liquid charger is arranged between the water outlet and the water pump.

[0008] Preferably, the water supply pipe includes a main pipe and a branch pipe, the branch pipe is connected to the first spray head and the second spray head respectively, the branch pipe is connected to the main pipe, the water pump is arranged on the main pipe, the branch pipe is provided with a control valve, and a control valve is also provided between the water pump and the water outlet.

[0009] Preferably, the two absorption mechanisms are respectively a first absorption mechanism and a second absorption mechanism, the air outlet of the first absorption mechanism is connected to the input end of the plasma deodorization mechanism, and the output end of the plasma deodorization mechanism is connected to the air inlet of the second absorption mechanism.

[0010] Preferably, the air outlet of the second absorption mechanism is provided with an induced draft fan, and the outlet of the induced draft fan is connected to an exhaust duct.

[0011] Preferably, a sealing member is provided at the joint between the top of the open container and the kettle cover.

[0012] The beneficial effects of the utility model: the utility model provides an inositol production waste gas treatment device, which optimizes the structural setting of the absorption mechanism and arranges a serpentine absorption pipe, thereby greatly prolonging the residence time of the waste gas in the reabsorption mechanism. A plurality of spray heads are arranged in the serpentine absorption pipe, and the contact area between the absorption liquid in the pipe and the waste gas can be greatly increased with the filler, thereby effectively improving the absorption effect of the absorption mechanism on the waste gas. The utility model adopts two absorptions and a plasma deodorization mechanism to complete the treatment of the waste gas. Compared with the common inositol waste gas treatment that arranges a multi-stage absorption tower, it can reduce the number of absorption mechanisms and the floor space of the device, streamline the equipment and reduce the treatment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an inositol production waste gas treatment device of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the absorption mechanism of the utility model.

[0015] Figure 3 Schematic diagram of the structure of part A.

[0016] In the figure: 1-first absorption mechanism, 2-plasma deodorization mechanism, 3-second absorption mechanism, 4-induced draft fan, 101-kettle cover, 102-kettle body, 103-serpentine absorption pipe, 104-first packing layer, 105-air inlet, 106-water pump, 107-liquid collecting tank, 108-second water outlet, 109-liquid adder, 110-first spray head, 111-second packing layer, 112-second spray head, 113-branch pipe, 114-main pipe, 115-seal, 116-wire mesh dehydrator. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings. The described embodiments are only a part of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0018] refer to Figures 1 to 3, this embodiment provides an inositol production waste gas treatment device, including two absorption mechanisms and a plasma deodorization mechanism 2. The plasma deodorization mechanism 2 is arranged between the two absorption mechanisms and connected in sequence; the absorption mechanism includes a kettle body 102, a kettle cover 101, an absorption pipe, a spray head, a liquid collection tank 107 and a water pump 106, the absorption pipe is arranged in the kettle body 102, the absorption pipe is a serpentine absorption pipe 103, and the serpentine absorption pipe 103 includes a plurality of horizontally placed straight pipes and a bend connecting adjacent straight pipes. The bottom input end of the serpentine absorption pipe 103 is connected to an air inlet 105, and the tube wall of the serpentine absorption pipe 103 near the bottom of the kettle body 102 is provided with a liquid outlet section, and the liquid outlet section is provided with a water filter hole. The top output end of the serpentine absorption pipe 103 is connected to a funnel-shaped open container, the open container is fixed to the inner wall of the kettle body 102 and the top of the open container is in contact with the kettle cover 101, and the kettle cover 101 is provided with an air outlet directly above the open container. The top of the open container is provided with a first spray head 110, and each of the straight pipes is provided with a second spray head 112. The serpentine absorption tube 103 is provided with a first packing layer 104, and the open container is provided with a second packing layer 111, and the second packing layer 111 is provided under the first spray head 110. The liquid collecting tank 107 is provided at the bottom of the kettle body 102, and the liquid collecting tank 107 includes a water inlet and a water outlet. The water inlet is connected to the liquid outlet section, and the water outlet is respectively connected to the first spray head 110 and the second spray head 112 through a water pipe, and the water pump 106 is provided on the water pipe. The first packing layer 104 and the second packing layer 111 can use ball ring packing, which has the advantages of large flux, small resistance, high separation efficiency and large operation flexibility, etc., and can increase the contact area between the exhaust gas and the absorption liquid, and improve the absorption rate of harmful substances in the exhaust gas.

[0019] A wire mesh dehumidifier 116 is also provided between the first spray head 110 and the gas outlet. The wire mesh dehumidifier 116 can separate water vapor from the exhaust gas to prevent the exhaust gas entering the plasma deodorization mechanism 2 from having excessive humidity and affecting the stability of the equipment.

[0020] The liquid collecting tank 107 is further provided with a second water outlet 108 , and the second water outlet 108 is used to discharge the saturated absorption liquid out of the liquid collecting tank 107 .

[0021] The absorption mechanism further includes a liquid charger 109, the output end of which is arranged between the water outlet and the water pump 106. As the absorption liquid is continuously circulated and sprayed, the absorption liquid gradually tends to be saturated, and its absorption capacity is greatly reduced. Some fresh absorption liquid can be pumped in through the liquid charger 109 to improve the absorption effect of the absorption liquid on harmful substances in the exhaust gas.

[0022] The water delivery pipe includes a main pipe 114 and a branch pipe 113, the branch pipe 113 is connected to the first spray head 110 and the second spray head 112 respectively, the branch pipe 113 is connected to the main pipe 114, the water pump 106 is arranged on the main pipe 114, and the branch pipe 113 is provided with a control valve. A control valve is also provided between the water pump 106 and the water outlet, and the operator can choose to control the injection amount of the absorption liquid in the serpentine absorption pipe 103.

[0023] The two absorption mechanisms are respectively a first absorption mechanism 1 and a second absorption mechanism 3, the gas outlet of the first absorption mechanism is connected to the input end of the plasma deodorization mechanism 2, and the output end of the plasma deodorization mechanism 2 is connected to the gas inlet 105 of the second absorption mechanism 3. The plasma deodorization mechanism 2 generates active particles such as ozone through electrolytic separation reaction, which undergo oxidative degradation reaction with harmful gas molecules in the exhaust gas and are finally converted into gas components that do not pollute the atmosphere.

[0024] The air outlet of the second absorption mechanism 3 is provided with an induced draft fan 4, and the outlet of the induced draft fan 4 is connected to the exhaust duct for subsequent discharge.

[0025] A seal 115 is provided at the joint between the top of the open container and the kettle cover 101 to prevent the exhaust gas from leaking to the outside of the absorption tube.

[0026] The utility model provides an inositol production waste gas treatment device, which greatly prolongs the residence time of the waste gas in the absorption mechanism and the contact area with the absorption liquid by arranging a serpentine absorption tube in the absorption mechanism, arranging spray heads at multiple locations in the tube and arranging fillers, thereby improving the treatment effect of the absorption mechanism on the waste gas, thereby achieving the purpose of reducing the number of absorption mechanisms set, streamlining equipment, and reducing energy consumption and costs.

[0027] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model, and do not limit the utility model to the specific implementation methods described. Obviously, other modifications and changes can be made according to the content of this specification. The embodiments selected and specifically described in this specification are to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. It is not a limitation of the utility model. Any solution after simple deformation of the utility model belongs to the protection scope of the utility model.

Claims

1. An inositol production waste gas treatment device, comprising two absorption mechanisms and a plasma deodorization mechanism, characterized in that: The plasma deodorization mechanism is arranged between two absorption mechanisms and connected in sequence; the absorption mechanism includes a kettle body, a kettle cover, an absorption pipe, a spray head, a liquid collecting tank and a water pump, the absorption pipe is arranged in the kettle body, the absorption pipe is a serpentine absorption pipe, and the serpentine absorption pipe includes a plurality of horizontally placed straight pipes and curved pipes connecting adjacent straight pipes; the bottom input end of the serpentine absorption pipe is connected to an air inlet, the tube wall of the serpentine absorption pipe near the bottom of the kettle body is provided with a liquid outlet section, and the liquid outlet section is provided with a water filter hole; the top output end of the serpentine absorption pipe is connected to a funnel-shaped open container, and the open container is fixed to the kettle body. The inner wall and the top of the open container are in contact with the kettle cover, and the kettle cover is provided with an air outlet directly above the open container; a first spray head is provided at the top of the open container, and a second spray head is provided at each of the straight pipes, a first packing layer is provided in the serpentine absorption tube, and a second packing layer is provided in the open container, and the second packing layer is provided under the first spray head; the liquid collecting tank is provided at the bottom of the kettle body, and the liquid collecting tank includes a water inlet and a water outlet, the water inlet is connected to the liquid outlet section, and the water outlet is respectively connected to the first spray head and the second spray head through a water pipe, and the water pump is provided on the water pipe.

2. The inositol production waste gas treatment device according to claim 1, characterized in that: A wire mesh water remover is also provided between the first spray head and the air outlet.

3. The inositol production waste gas treatment device according to claim 1, characterized in that: The liquid collecting tank is also provided with a second water outlet.

4. The inositol production waste gas treatment device according to claim 1, characterized in that: The absorption mechanism also includes a liquid charger, and the output end of the liquid charger is arranged between the water outlet and the water pump.

5. The inositol production waste gas treatment device according to claim 1, characterized in that: The water delivery pipe includes a main pipe and a branch pipe, the branch pipe is connected to the first spray head and the second spray head respectively, the branch pipe is connected to the main pipe, the water pump is arranged on the main pipe, the branch pipe is provided with a control valve, and a control valve is also provided between the water pump and the water outlet.

6. The inositol production waste gas treatment device according to claim 1, characterized in that: The two absorption mechanisms are respectively a first absorption mechanism and a second absorption mechanism, the air outlet of the first absorption mechanism is communicated with the input end of the plasma deodorization mechanism, and the output end of the plasma deodorization mechanism is communicated with the air inlet of the second absorption mechanism.

7. The inositol production waste gas treatment device according to claim 6, characterized in that: The air outlet of the second absorption mechanism is provided with an induced draft fan, and the outlet of the induced draft fan is connected to the exhaust duct.

8. The inositol production waste gas treatment device according to claim 1, characterized in that: A sealing member is provided at the joint between the top of the open container and the kettle cover.

Images