Novel organic solvent consumption reducing device for grain and oil processing

Abstract

The utility model provides a novel organic solvent consumption reducing device for grain and oil processing, and relates to the technical field of organic solvent recycling. The novel organic solvent consumption reducing device for grain and oil processing comprises a treatment tank, an adsorption box and a pump body, the top of the treatment tank is communicated with the adsorption box through a connecting pipe, and the treatment tank is fixedly communicated with an air supply pipe. The cooled tail gas is filled into the treatment tank through the gas feeding pipe, an alkaline solution is filled into the communicating pipe through the liquid injection pipe, and then the alkaline solution is sprayed out through the spraying heads on the spraying pipe to react with acid gas in the tail gas to remove the acid gas in the tail gas. A rotating pipe is driven to rotate under the action of a driving mechanism to enable a spraying head to perform rotary spraying, an alkaline solution is uniformly sprayed in the treatment tank, the treatment effect on acid gas is improved, then mineral oil drops in tail gas are absorbed through an activated carbon filter plate in an adsorption box, and the adsorption efficiency is improved. And a subsequent resin adsorption system is prevented from being influenced.

Description

Technical Field

[0001] This utility model relates to an organic solvent recovery device, specifically a novel device for reducing organic solvent consumption in grain and oil processing, belonging to the field of organic solvent recovery and utilization technology. Background Technology

[0002] In the oil processing process, organic solvents are used to extract oil from the oilseeds, removing the oil. The organic solvents in the oil and protein are then evaporated by heating, releasing the organic solvents in gaseous form, thus separating the oil, protein, and organic solvents. The evaporated organic solvent gas is condensed in a condenser and recovered as a liquid. The condensed gas then passes through a mineral oil system for further recovery of the organic solvents. The exhaust gas after solvent recovery is discharged by a blower. The exhaust gas contains organic solvents at a concentration of 15,000-20,000 PPM, which is relatively high and wastes organic solvents, necessitating their recovery.

[0003] Typically, a resin adsorption system consisting of resin adsorption columns is used to adsorb organic solvents in exhaust gas. After the resin adsorption column is saturated, steam is introduced to desorb the solvent. The desorbed solvent gas is condensed in a condenser and the organic solvent is recovered in liquid form. After passing through the resin adsorption separation device, the concentration of organic solvents in the exhaust gas is reduced from 15,000-20,000 PPM to below 50 PPM, thereby reducing the consumption of organic solvents in production. However, acidic gases and filtered mineral oil droplets in the exhaust gas can coat the resin, affecting the adsorption effect of organic solvents and reducing the service life of the resin. Therefore, this utility model provides a new device for reducing organic solvent consumption in grain and oil processing. Utility Model Content

[0004] The purpose of this invention is to provide a novel device for reducing organic solvent consumption in grain and oil processing in order to solve the above-mentioned problems. This device addresses the issue in the prior art where acidic gases in the exhaust gas and filtered mineral oil droplets can coat the resin, affecting the adsorption effect of organic solvents and reducing the service life of the resin.

[0005] This utility model is achieved through the following technical solution: a novel device for reducing organic solvent consumption in grain and oil processing, comprising a processing tank, an adsorption box, and a pump body. The top of the processing tank and the adsorption box are connected by a connecting pipe. An air supply pipe is fixedly connected to the processing tank. A rotating pipe is rotatably connected to the top of the processing tank. A spray pipe is fixedly connected to the rotating pipe. A spray head is fixedly connected to the spray pipe. The processing tank is equipped with a driving mechanism for driving the rotating pipe to rotate. A connecting pipe is rotatably connected to the top of the rotating pipe. A tee is fixedly connected to one end of the connecting pipe. A liquid injection pipe is fixedly connected to one end of the tee. The input end of the pump body is connected to the bottom of the processing tank through a liquid extraction pipe. The output end of the pump body is connected to the other end of the tee through a liquid delivery pipe. An activated carbon filter plate is fixedly connected inside the adsorption box.

[0006] Preferably, the driving mechanism includes a diversion pipe fixed on the treatment tank, one end of the diversion pipe being connected to the infusion pipe, an impeller being fixedly connected to the outer surface of the rotating pipe, and a diversion nozzle pointing towards the impeller being fixedly connected to one end of the diversion pipe. The rotating pipe is driven to rotate by the solution sprayed from the diversion nozzle impacting the impeller.

[0007] Preferably, the connecting pipe is arranged perpendicular to the injection pipe and the infusion pipe, and a one-way valve is fixedly connected to both the injection pipe and the infusion pipe, so that the fluid inside the infusion pipe and the injection pipe can flow in one direction.

[0008] Preferably, a drain pipe is fixedly connected to the bottom of the treatment tank, and a valve is fixedly connected to the drain pipe. The solvent inside the treatment tank is discharged by opening the valve on the drain pipe.

[0009] Preferably, the gas supply pipe is L-shaped, and a shield is fixedly connected to the outer surface of one end of the gas supply pipe inside the treatment tank to prevent alkaline solution from flowing into one end of the gas supply pipe.

[0010] Preferably, a drying layer is fixedly connected inside the adsorption box, and the activated carbon filter plate is located on the side of the drying layer away from the connecting pipe. The exhaust gas is dried and adsorbed through the drying layer and the activated carbon filter plate.

[0011] Preferably, a gas delivery pipe is fixedly connected to the side of the adsorption box away from the connecting pipe, and a sealing ring is provided between the connecting pipe and the rotating pipe, so that the treated exhaust gas is discharged through the gas delivery pipe.

[0012] This utility model provides a novel device for reducing organic solvent consumption in grain and oil processing, which has the following beneficial effects:

[0013] The device uses a gas supply pipe to fill the treated tank with cooled exhaust gas, and a liquid injection pipe to fill the connecting pipe with alkaline solution. The solution is then sprayed out through spray nozzles on the spray pipe to react with and remove acidic gases in the exhaust gas. Under the action of the drive mechanism, the rotating pipe is driven to rotate and spray the alkaline solution evenly inside the treated tank, improving the treatment effect on acidic gases. Finally, the activated carbon filter plate inside the adsorption box absorbs mineral oil droplets in the exhaust gas to prevent them from affecting the subsequent resin adsorption system.

[0014] The device draws the solution from the bottom wall of the treatment tank by activating the pump body, and then re-transports it to the inside of the rotating tube through the infusion pipe, so that the solution can be recycled. The circulating solution is divided by the diversion pipe, and then sprayed out by the diversion nozzle to impact the impeller and drive the rotating tube to rotate. This reduces the use of drive equipment and lowers the operating cost. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a sectional perspective view of the processing tank of this utility model;

[0017] Figure 3 For the present utility model Figure 1 Enlarged view at point A;

[0018] Figure 4 For the present utility model Figure 2 Enlarged diagram at point S;

[0019] Figure 5 This is a schematic diagram of the adsorption box structure of this utility model.

[0020] [Explanation of Key Component Symbols]

[0021] 1. Processing tank; 11. Connecting pipe; 12. Injection pipe; 13. Drain pipe; 2. Gas supply pipe; 21. Shielding cover; 3. Rotating pipe; 31. Spray pipe; 32. Spray head; 4. Connecting pipe; 5. Adsorption box; 51. Drying layer; 52. Activated carbon filter plate; 6. Gas supply pipe; 7. Pump body; 71. Liquid extraction pipe; 72. Liquid supply pipe; 8. Diverting pipe; 81. Diverting nozzle; 9. Impeller. Detailed Implementation

[0022] This utility model provides a novel device for reducing organic solvent consumption in grain and oil processing.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4A novel organic solvent reduction device for grain and oil processing includes a treatment tank 1, an adsorption box 5, and a pump body 7. The top of the treatment tank 1 and the adsorption box 5 are connected by a connecting pipe 4. An activated carbon filter plate 52 is fixedly connected inside the adsorption box 5, and a drying layer 51 is also fixedly connected inside the adsorption box 5. The activated carbon filter plate 52 is located on the side of the drying layer 51 away from the connecting pipe 4. A gas supply pipe 6 is fixedly connected to the side of the adsorption box 5 away from the connecting pipe 4. Before entering the treatment tank 1, the exhaust gas is cooled by a finned heat exchanger to ensure that the exhaust gas temperature is reduced to below 10°C, thereby enhancing the adsorption effect. The components inside the treatment tank 1 and the adsorption box 5 treat acidic gases and mineral oil droplets in the exhaust gas. The activated carbon filter plate 52 adsorbs the mineral oil droplets, and the drying layer 51 dries the exhaust gas. The drying layer 51 is made of anhydrous magnesium sulfate. After treatment, the exhaust gas is transported to a resin adsorption system consisting of three resin adsorption columns for organic solvent recovery.

[0024] Please refer to it again. Figure 1 , Figure 2 and Figure 4 A gas supply pipe 2 is fixedly connected to the treatment tank 1. The gas supply pipe 2 is L-shaped. A shield 21 is fixedly connected to the outer surface of one end of the gas supply pipe 2 inside the treatment tank 1. The cooled exhaust gas is introduced into the interior of the treatment tank 1 through the gas supply pipe 2. The top of the shield 21 prevents the spray solution from flowing into the interior of the gas supply pipe 2. A rotating pipe 3 is rotatably connected to the top of the treatment tank 1. A spray pipe 31 is fixedly connected to the rotating pipe 3. A spray head 32 is fixedly connected to the spray pipe 31. The treatment tank 1 is equipped with a drive mechanism to drive the rotating pipe 3 to rotate. By supplying alkaline solution into the rotating pipe 3, the solution is sprayed out through the spray head 32 on the spray pipe 31 to deacidify the exhaust gas flowing into the treatment tank 1. The drive mechanism drives the rotating pipe 3 to rotate, so that the alkaline solution is evenly sprayed inside the treatment tank 1.

[0025] Please refer to it again. Figure 1 , Figure 2 and Figure 3 The top of the rotating tube 3 is connected to a connecting tube 11. A sealing ring is provided between the connecting tube 11 and the rotating tube 3. The sealing effect between the rotating tube 3 and the connecting tube 11 is improved by the sealing ring. One end of the connecting tube 11 is fixedly connected to a tee, and one end of the tee is fixedly connected to an injection tube 12. The prepared alkaline solution is transported to the inside of the rotating tube 3 through the injection tube 12 via the connecting tube 11.

[0026] Please refer to it again. Figure 1 , Figure 2 and Figure 3The input end of the pump body 7 is connected to the bottom of the treatment tank 1 through the suction pipe 71, and the output end of the pump body 7 is connected to the other end of the three-way valve through the delivery pipe 72. By starting the pump body 7, the solution inside the bottom wall of the treatment tank 1 is drawn by the suction pipe 71 and then transported back to the inside of the rotating pipe 3 for recycling through the delivery pipe 72. The bottom of the treatment tank 1 is fixedly connected to the drain pipe 13, and a valve is fixedly connected to the drain pipe 13. By opening the valve on the drain pipe 13, the solution inside the treatment tank 1 is discharged. The connecting pipe 11 is set perpendicular to the injection pipe 12 and the delivery pipe 72. One-way valves are fixedly connected to both the injection pipe 12 and the delivery pipe 72 to prevent the solution from flowing into the inside of the injection pipe 12 and the delivery pipe 72.

[0027] Please refer to it again. Figure 1 , Figure 2 and Figure 4 The driving mechanism includes a diversion pipe 8 fixed on the treatment tank 1. One end of the diversion pipe 8 is connected to the infusion pipe 72. An impeller 9 is fixedly connected to the outer surface of the rotating pipe 3. One end of the diversion pipe 8 is fixedly connected to a diversion nozzle 81 pointing to the impeller 9. The solution flowing into the infusion pipe 72 is diverted through the diversion pipe 8. Then, the solution sprayed from one end of the diversion nozzle 81 impacts the impeller 9 to drive the rotating pipe 3 to rotate. A liquid level sensor is installed inside the treatment tank 1 to detect the amount of solution inside the treatment tank 1.

[0028] Working principle: The gas supply pipe 2 is connected to the exhaust gas fan. The cooled exhaust gas is transported to the inside of the treatment tank 1 through the gas supply pipe 2. The proportioned alkaline solvent is transported to the inside of the rotating tube 3 through the liquid injection pipe 12. Then, it is sprayed out through the spray head 32 on the spray pipe 31 to neutralize the acidic gases in the exhaust gas. The pump body 7 is started to draw the solution from the bottom wall of the treatment tank 1 through the liquid extraction pipe 71 and then transport it back to the inside of the rotating tube 3 through the liquid delivery pipe 72 for recycling. The diversion pipe 8 is used to further process the solution. The solution flowing through the infusion pipe 72 is diverted, causing the solution sprayed from the diversion nozzle 81 to impact the impeller 9, which drives the rotating pipe 3 to rotate, so that the alkaline solution is evenly sprayed inside the treatment tank 1. The tail gas after acid removal enters the adsorption box 5 through the connecting pipe 4, is dried by the drying layer 51, and the mineral oil droplets in the tail gas are absorbed by the activated carbon filter plate 52. After treatment, the tail gas is transported through the gas transmission pipe 6 to the resin adsorption system consisting of three resin adsorption columns for the recovery of organic solvents.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel device for reducing organic solvent consumption in grain and oil processing, comprising a processing tank (1), an adsorption box (5), and a pump body (7), characterized in that: The top of the treatment tank (1) and the adsorption box (5) are connected by a connecting pipe (4). An air supply pipe (2) is fixedly connected to the treatment tank (1). A rotating pipe (3) is rotatably connected to the top of the treatment tank (1). A spray pipe (31) is fixedly connected to the rotating pipe (3). A spray head (32) is fixedly connected to the spray pipe (31). The treatment tank (1) is provided with a driving mechanism to drive the rotating pipe (3) to rotate. A connecting pipe (11) is rotatably connected to the top of the rotating pipe (3). A tee is fixedly connected to one end of the connecting pipe (11). A liquid injection pipe (12) is fixedly connected to one end of the tee. The input end of the pump body (7) is connected to the bottom of the treatment tank (1) through a liquid extraction pipe (71). The output end of the pump body (7) is connected to the other end of the tee through a liquid delivery pipe (72). An activated carbon filter plate (52) is fixedly connected inside the adsorption box (5).

2. The novel organic solvent reduction device for grain and oil processing according to claim 1, characterized in that: The drive mechanism includes a diversion pipe (8) fixed on the treatment tank (1), one end of the diversion pipe (8) is connected to the infusion pipe (72), an impeller (9) is fixedly connected to the outer surface of the rotating pipe (3), and a diversion nozzle (81) pointing to the impeller (9) is fixedly connected to one end of the diversion pipe (8).

3. The novel organic solvent reduction device for grain and oil processing according to claim 1, characterized in that: The connecting pipe (11) is arranged perpendicularly to the injection pipe (12) and the infusion pipe (72), and a one-way valve is fixedly connected to both the injection pipe (12) and the infusion pipe (72).

4. The novel organic solvent reduction device for grain and oil processing according to claim 1, characterized in that: The bottom of the treatment tank (1) is fixedly connected to a drain pipe (13), and a valve is fixedly connected to the drain pipe (13).

5. The novel organic solvent reduction device for grain and oil processing according to claim 1, characterized in that: The air supply pipe (2) is L-shaped, and a shield (21) is fixedly connected to the outer surface of one end of the air supply pipe (2) inside the processing tank (1).

6. The novel organic solvent reduction device for grain and oil processing according to claim 1, characterized in that: The adsorption box (5) has a drying layer (51) fixedly connected inside, and the activated carbon filter plate (52) is located on the side of the drying layer (51) away from the connecting pipe (4).

7. The novel organic solvent reduction device for grain and oil processing according to claim 1, characterized in that: The adsorption box (5) is fixedly connected to a gas supply pipe (6) on the side away from the connecting pipe (4), and a sealing ring is provided between the connecting pipe (11) and the rotating pipe (3).

Images