Oil removal device for continuously removing floating oil in glycerol aqueous solution

Abstract

The utility model provides an oil removing device for continuously removing floating oil in a glycerol aqueous solution. The oil removing device comprises an oil removing box, an upstream overhead partition plate, a midstream bottom partition plate, a downstream overhead partition plate, an upstream overflow groove, an upstream overflow pipe, a downstream overflow groove, a downstream overflow pipe, an oil collecting groove, an upstream breather pipe, a midstream breather pipe and a downstream breather pipe. After the glycerol aqueous solution enters the oil removal tank, the grease and the glycerol aqueous solution are layered, the grease floats above, is gathered to a certain thickness and then enters the grease collecting tank from the overflow tank along the overflow pipe, and the grease is conveyed back to a process system through the conveying pump to be recycled; the purified glycerol aqueous solution flows out from a liquid outlet at the lower part and enters the next process link; the oil removal device can realize continuous operation of oil skimming, so that the labor cost is reduced, and the oil removal efficiency and the oil removal quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of purification equipment for glycerol aqueous solution of oil hydrolysis products, in particular to an oil removal device for continuously removing floating oil in glycerol aqueous solution. Background Art

[0002] During the oil hydrolysis production process, the glycerol aqueous solution (commonly known as sweet water) generated by the reaction will be mixed with a small amount of oil, which is extremely unfavorable for the subsequent purification of the glycerol aqueous solution, resulting in a decrease in the quality of the finished glycerol. Therefore, this part of the oil needs to be skimmed off. The traditional method uses manual operation and regular skimming, resulting in poor oil removal effect and low oil removal efficiency, and causing additional physical burden on the operators.

[0003] Therefore, how to improve the efficiency and quality of oil removal, reduce the labor intensity of workers, and save labor costs is a technical problem that technical personnel in this industry urgently need to solve. Utility Model Content

[0004] The utility model aims to provide an oil removal device for continuously removing floating oil in a glycerol aqueous solution.

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

[0006] A degreasing device for continuously removing floating oil from a glycerol aqueous solution, the degreasing device comprising a degreasing tank, an upstream top baffle, a midstream bottom baffle, a downstream top baffle, an upstream overflow trough, an upstream overflow pipe, a downstream overflow trough, a downstream overflow pipe, a grease collecting trough, an upstream vent pipe, a midstream vent pipe and a downstream vent pipe;

[0007] The oil removal tank is a box-type container including a top box wall;

[0008] The upper part of the side wall at one end in the length direction of the deoiling tank is provided with a liquid inlet for the glycerol aqueous solution to be deoiled, and the bottom of the side wall at the other end in the length direction of the deoiling tank is provided with a liquid outlet for the glycerol aqueous solution after deoiling;

[0009] The upstream top baffle, the midstream bottom baffle, and the downstream top baffle are sequentially arranged in the de-oiling tank in the direction from the liquid inlet to the liquid outlet, the top end of the upstream top baffle is sealed and fixedly arranged on the inner length and width surface of the top box wall of the de-oiling tank, and a gap is left between the bottom end of the upstream top baffle and the inner length and width surface of the bottom box wall of the de-oiling tank to form a fluid channel;

[0010] The bottom end of the midstream bottom partition is sealed and fixedly arranged on the inner length and width surface of the bottom box wall of the de-oiling tank, and a gap is left between the top end of the midstream bottom partition and the inner length and width surface of the top box wall of the de-oiling tank to form a fluid channel;

[0011] The top end of the downstream top baffle is sealed and fixedly arranged on the inner length and width surface of the top box wall of the de-oiling tank, and a gap is left between the bottom end of the downstream top baffle and the inner length and width surface of the bottom box wall of the de-oiling tank to form a fluid channel;

[0012] The upstream overflow groove is located between the liquid inlet of the degreasing tank and the upstream top partition, the liquid outlet on the bottom groove wall of the upstream overflow groove is connected with the top pipe opening of the upstream overflow pipe, the bottom pipe opening of the upstream overflow pipe penetrates the bottom box wall of the degreasing tank and is inserted into the grease collecting groove, and the outer surface of the upstream overflow pipe is sealed and welded to the through hole on the bottom box wall of the degreasing tank;

[0013] The downstream overflow groove is located between the upstream top partition and the midstream bottom partition, the liquid outlet on the bottom groove wall of the downstream overflow groove is connected with the top pipe opening of the downstream overflow pipe, the bottom pipe opening of the downstream overflow pipe penetrates the bottom box wall of the degreasing tank and is inserted into the grease collecting groove, and the outer surface of the downstream overflow pipe is sealed and welded to the through hole on the bottom box wall of the degreasing tank;

[0014] The top groove edges of the upstream overflow groove and the downstream overflow groove are both higher than the top end of the midstream bottom baffle;

[0015] An upstream vent pipe is arranged on the top box wall of the deoiling tank between the liquid inlet of the deoiling tank and the upstream top partition, a midstream vent pipe is arranged on the top box wall of the deoiling tank between the upstream top partition and the downstream top partition, and a downstream vent pipe is arranged on the top box wall of the deoiling tank between the downstream top partition and the liquid outlet of the deoiling tank.

[0016] Preferably, the top groove edge of the upstream overflow groove is flush with the top groove edge of the downstream overflow groove.

[0017] Preferably, the oil removal tank is welded from stainless steel plates.

[0018] Preferably, the upstream top baffle, the midstream bottom baffle and the downstream top baffle are all made of stainless steel plates;

[0019] The top end of the upstream top baffle is sealed and welded to the inner length and width surface of the top box wall of the de-oiling tank;

[0020] The bottom end of the midstream bottom partition is sealed and welded to the inner length and width surface of the bottom tank wall of the de-oiling tank;

[0021] The top end of the downstream top partition is sealed and welded to the inner length and width surface of the top box wall of the de-oiling tank.

[0022] Preferably, the bottom oil outlet of the grease collecting tank is connected to the oil inlet of a delivery pump through a pipeline, and the oil outlet of the delivery pump is used to deliver the grease to a downstream process device.

[0023] The technical solution of this application has achieved the following beneficial technical effects:

[0024] The oil removal device uses the different densities of oil and water to separate into layers, so that the oil flows out from the upper upstream overflow tank and the downstream overflow tank, and the deoiled glycerol aqueous solution flows out from the lower liquid outlet to enter the next production link;

[0025] When the degreasing device is in operation, after the glycerol aqueous solution enters the degreasing tank, the grease and the glycerol aqueous solution are separated into layers, and the grease floats on the top. After gathering to a certain thickness, it flows from the overflow tank along the overflow pipe into the grease collecting tank, and the grease is sent back to the process system for recycling through the delivery pump; the purified glycerol aqueous solution flows out from the liquid outlet below and enters the next process link;

[0026] The oil removal device provided in the present application can realize continuous operation of oil skimming, improve the oil removal efficiency and oil removal effect, reduce the labor intensity of workers, and reduce labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an oil removal device for continuously removing floating oil in a glycerol aqueous solution provided in an embodiment of the present application;

[0028] In the figure: 1- oil removal tank, 101- liquid inlet, 102- liquid outlet;

[0029] 201-upstream top baffle, 202-midstream bottom baffle, 203-downstream top baffle;

[0030] 301-upstream overflow trough, 302-upstream overflow pipe;

[0031] 401- downstream overflow trough, 402- downstream overflow pipe;

[0032] 5-grease collection tank, 501-delivery pump;

[0033] 601-upstream vent pipe, 602-midstream vent pipe, 603-downstream vent pipe. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Of course, the described embodiment is a part of the utility model, not all of it. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that terms such as “center”, “axial”, “radial”, “longitudinal”, “lateral”, “length”, “width”, “up”, “down”, “front”, “back”, “left”, “right”, “top”, “bottom”, “high”, “low”, “clockwise”, “counterclockwise”, “inside”, “outside”, “horizontal”, and “vertical”, etc., indicating directions or positional relationships, are based on directions or positional relationships in actual use and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0036] Reference Figure 1 In the figure: oil removal tank 1, liquid inlet 101, liquid outlet 102; upstream top baffle 201, midstream bottom baffle 202, downstream top baffle 203; upstream overflow trough 301, upstream overflow pipe 302; downstream overflow trough 401, downstream overflow pipe 402; grease collecting tank 5, delivery pump 501; upstream vent pipe 601, midstream vent pipe 602, downstream vent pipe 603.

[0037] The present application provides an oil removal device for continuously removing floating oil in a glycerol aqueous solution, the oil removal device comprising an oil removal tank 1, an upstream top baffle 201, a midstream bottom baffle 202, a downstream top baffle 203, an upstream overflow trough 301, an upstream overflow pipe 302, a downstream overflow trough 401, a downstream overflow pipe 402, a grease collecting tank 5, an upstream vent pipe 601, a midstream vent pipe 602 and a downstream vent pipe 603;

[0038] The oil removal tank 1 is a box in a rectangular parallelepiped shape including a top box wall;

[0039] The upper part of the side wall at one end in the length direction of the deoiling tank 1 is provided with a liquid inlet 101 for the glycerol aqueous solution to be deoiled to flow in, and the bottom of the side wall at the other end in the length direction of the deoiling tank 1 is provided with a liquid outlet 102 for the glycerol aqueous solution after deoiling to flow out;

[0040] The upstream top baffle 201, the midstream bottom baffle 202, and the downstream top baffle 203 are sequentially arranged in the de-oiling tank 1 in the direction from the liquid inlet 101 to the liquid outlet 102, the top end of the upstream top baffle 201 is sealed and fixedly arranged on the inner length and width surface of the top box wall of the de-oiling tank 1, and a gap is left between the bottom end of the upstream top baffle 201 and the inner length and width surface of the bottom box wall of the de-oiling tank 1 to form a fluid channel;

[0041] The bottom end of the midstream bottom partition 202 is sealed and fixedly arranged on the inner length and width surface of the bottom box wall of the de-oiling tank 1, and a gap is left between the top end of the midstream bottom partition 202 and the inner length and width surface of the top box wall of the de-oiling tank 1 to form a fluid channel;

[0042] The top end of the downstream top baffle 203 is sealed and fixedly arranged on the inner length and width surface of the top box wall of the de-oiling tank 1, and a gap is left between the bottom end of the downstream top baffle 203 and the inner length and width surface of the bottom box wall of the de-oiling tank 1 to form a fluid channel;

[0043] The upstream overflow groove 301 is located between the liquid inlet 101 of the degreasing tank 1 and the upstream top partition 201, the liquid outlet on the bottom groove wall of the upstream overflow groove 301 is connected with the top pipe opening of the upstream overflow pipe 302, the bottom pipe opening of the upstream overflow pipe 302 penetrates the bottom box wall of the degreasing tank 1 and is inserted into the grease collecting groove 5, and the outer surface of the upstream overflow pipe 302 is sealed and welded to the through hole on the bottom box wall of the degreasing tank 1;

[0044] The downstream overflow groove 401 is located between the upstream top partition 201 and the midstream bottom partition 202, the liquid outlet on the bottom groove wall of the downstream overflow groove 401 is connected with the top pipe opening of the downstream overflow pipe 402, the bottom pipe opening of the downstream overflow pipe 402 penetrates the bottom box wall of the degreasing tank 1 and is inserted into the grease collecting groove 5, and the outer surface of the downstream overflow pipe 402 is sealed and welded to the through hole on the bottom box wall of the degreasing tank 1;

[0045] The top groove edges of the upstream overflow groove 301 and the downstream overflow groove 401 are both higher than the top of the midstream bottom partition 202;

[0046] An upstream vent pipe 601 is provided on the top box wall of the oil removal tank 1 between the liquid inlet of the oil removal tank 1 and the upstream top partition 201, a midstream vent pipe 602 is provided on the top box wall of the oil removal tank 1 between the upstream top partition 201 and the downstream top partition 203, and a downstream vent pipe 603 is provided on the top box wall of the oil removal tank 1 between the downstream top partition 203 and the liquid outlet of the oil removal tank 1.

[0047] In one embodiment of the present application, the top groove edge of the upstream overflow groove 301 is flush with the top groove edge of the downstream overflow groove 401 .

[0048] In one embodiment of the present application, the oil removal tank 1 is welded from stainless steel plates.

[0049] In one embodiment of the present application, the upstream top baffle 201, the midstream bottom baffle 202, and the downstream top baffle 203 are all stainless steel plates;

[0050] The top end of the upstream top partition 201 is sealed and welded to the inner length and width surface of the top box wall of the de-oiling tank 1;

[0051] The bottom end of the midstream bottom partition 202 is sealed and welded to the inner length and width surface of the bottom tank wall of the de-oiling tank 1;

[0052] The top end of the downstream top partition 203 is sealed and welded to the inner length and width surface of the top box wall of the de-oiling tank 1 .

[0053] In one embodiment of the present application, the bottom oil outlet of the grease collecting tank 5 is connected to the oil inlet of the delivery pump 501 through a pipeline, and the oil outlet of the delivery pump 501 is used to deliver the grease to the downstream process device.

[0054] In the present application, the product is: propylene glycol, also known as glycerol, is an organic compound with the chemical formula C3H8O3, and is a simple polyol compound; glycerol is a colorless, transparent, odorless, viscous liquid with a sweet taste and hygroscopicity; glycerol is miscible with water and alcohols, amines, and phenols in any proportion, and its aqueous solution is neutral, soluble in 11 times ethyl acetate and about 500 times ether, and insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether, oils, and long-chain fatty alcohols; glycerol is a flammable product, which can cause combustion and explosion when encountering strong oxidants such as chromium dioxide and potassium chlorate. It is a good solvent for many inorganic salts and gases, is non-corrosive to metals, and can be oxidized into acrolein when used as a solvent.

[0055] The methods and devices not described in detail in the present invention are all prior art and will not be described in detail.

[0056] The principles and implementation methods of the present invention are described in this article using specific embodiments. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications are also included in the scope of protection of the claims of the present invention.

Claims

1. An oil removal device for continuously removing floating oil from a glycerol aqueous solution, characterized in that: The oil removal device comprises an oil removal tank, an upstream top baffle, a midstream bottom baffle, a downstream top baffle, an upstream overflow trough, an upstream overflow pipe, a downstream overflow trough, a downstream overflow pipe, a grease collection tank, an upstream vent pipe, a midstream vent pipe and a downstream vent pipe; The oil removal tank is a box-type container including a top box wall; The upper part of the side wall at one end in the length direction of the deoiling tank is provided with a liquid inlet for the glycerol aqueous solution to be deoiled, and the bottom of the side wall at the other end in the length direction of the deoiling tank is provided with a liquid outlet for the glycerol aqueous solution after deoiling; The upstream top baffle, the midstream bottom baffle, and the downstream top baffle are sequentially arranged in the de-oiling tank in the direction from the liquid inlet to the liquid outlet, the top end of the upstream top baffle is sealed and fixedly arranged on the inner length and width surface of the top box wall of the de-oiling tank, and a gap is left between the bottom end of the upstream top baffle and the inner length and width surface of the bottom box wall of the de-oiling tank to form a fluid channel; The bottom end of the midstream bottom partition is sealed and fixedly arranged on the inner length and width surface of the bottom box wall of the de-oiling tank, and a gap is left between the top end of the midstream bottom partition and the inner length and width surface of the top box wall of the de-oiling tank to form a fluid channel; The top end of the downstream top baffle is sealed and fixedly arranged on the inner length and width surface of the top box wall of the de-oiling tank, and a gap is left between the bottom end of the downstream top baffle and the inner length and width surface of the bottom box wall of the de-oiling tank to form a fluid channel; The upstream overflow groove is located between the liquid inlet of the degreasing tank and the upstream top partition, the liquid outlet on the bottom groove wall of the upstream overflow groove is connected with the top pipe opening of the upstream overflow pipe, the bottom pipe opening of the upstream overflow pipe penetrates the bottom box wall of the degreasing tank and is inserted into the grease collecting groove, and the outer surface of the upstream overflow pipe is sealed and welded to the through hole on the bottom box wall of the degreasing tank; The downstream overflow groove is located between the upstream top partition and the midstream bottom partition, the liquid outlet on the bottom groove wall of the downstream overflow groove is connected with the top pipe opening of the downstream overflow pipe, the bottom pipe opening of the downstream overflow pipe penetrates the bottom box wall of the degreasing tank and is inserted into the grease collecting groove, and the outer surface of the downstream overflow pipe is sealed and welded to the through hole on the bottom box wall of the degreasing tank; The top groove edges of the upstream overflow groove and the downstream overflow groove are both higher than the top end of the midstream bottom partition; An upstream vent pipe is arranged on the top box wall of the deoiling tank between the liquid inlet of the deoiling tank and the upstream top partition, a midstream vent pipe is arranged on the top box wall of the deoiling tank between the upstream top partition and the downstream top partition, and a downstream vent pipe is arranged on the top box wall of the deoiling tank between the downstream top partition and the liquid outlet of the deoiling tank.

2. The oil removal device for continuously removing floating oil in glycerol aqueous solution according to claim 1, characterized in that: The top groove edge of the upstream overflow groove is flush with the top groove edge of the downstream overflow groove.

3. The oil removal device for continuously removing floating oil in glycerol aqueous solution according to claim 1, characterized in that: The oil removal tank is formed by welding stainless steel plates.

4. The oil removal device for continuously removing floating oil in glycerol aqueous solution according to claim 1, characterized in that: The upstream top baffle, the midstream bottom baffle and the downstream top baffle are all stainless steel plates; The top end of the upstream top baffle is sealed and welded to the inner length and width surface of the top box wall of the de-oiling tank; The bottom end of the midstream bottom partition is sealed and welded to the inner length and width surface of the bottom tank wall of the de-oiling tank; The top end of the downstream top partition is sealed and welded to the inner length and width surface of the top box wall of the de-oiling tank.

5. The oil removal device for continuously removing floating oil from glycerol aqueous solution according to claim 1, characterized in that: The bottom oil outlet of the grease collecting tank is connected to the oil inlet of the delivery pump through a pipeline, and the oil outlet of the delivery pump is used to deliver the grease to the downstream process device.

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