CN214830186U

CN214830186U - Device for removing soap from cotton oil

Info

Publication number: CN214830186U
Application number: CN202022778400.9U
Authority: CN
Inventors: 李振江; 王亚飞; 余培娥; 鲁学峰
Original assignee: Xinjiang Kuitun Tiankang Plant Protein Co ltd
Current assignee: Xinjiang Kuitun Tiankang Plant Protein Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-11-23
Anticipated expiration: 2030-11-26

Abstract

The utility model belongs to the technical field of the processing is pressed to the plant, concretely relates to device that cotton oil removed soap, including heat exchanger, stirred tank, centrifuge, vacuum drier, essence filter equipment, the cooling tank of series connection in proper order, essence filter equipment includes series connection's one-level secondary filter, second grade secondary filter, and the filter core aperture of essence filter is 0.1 ~ 0.4 mu m. The utility model discloses remove the soap effectual, but continuous use, the fault rate is low, simple process, with low costs, do not add any chemical reagent, safety ring protects.

Description

Device for removing soap from cotton oil

Technical Field

The utility model belongs to the technical field of the plant processing technique that extracts oil, concretely relates to device of cotton oil soap removal.

Background

The cotton oil must be neutralized and refined by adding alkali because of containing gossypol, and also can react with neutral oil to generate vegetable soap in the process of neutralizing and removing gossypol by adding alkali, and the soap is harmful to human body and must be removed. According to the requirement of the new national standard GB/T1537-2019 of the cottonseed oil, the content of the first-level soap and the second-level soap is zero, and the content of the third-level soap is 0.01 percent, which is stricter than the requirement of the old national standard of 0.03 percent. The prior soap removing technology generally adopts the traditional process of adding about 10 percent of softened water or saline water for washing, and the new national standard can not meet the requirements of the new national standard after being implemented. And soap is removed by using a water washing and chemical mode (a phosphoric acid neutralization method), so that the indexes can meet the requirements, but the cost is high, the process device is complex, and the cost is high.

Disclosure of Invention

To the above problem, the utility model aims at providing a cotton oil removes soap device simplifies process flow, improves and removes the soap effect.

The purpose of the utility model is realized through the following technical scheme: a device for removing soap from cotton oil comprises a heat exchanger, a stirring kettle, a centrifugal machine, a vacuum dryer, a fine filter device and a cooling tank which are sequentially connected in series, wherein the fine filter device comprises a first-stage fine filter and a second-stage fine filter which are connected in series, and the aperture of a filter element of the fine filter is 0.1-0.4 mu m.

Furthermore, the fine filtering device is connected with a spare fine filtering device in parallel.

Further, the stirring kettle comprises a tank body, a rotating shaft is arranged in the tank body, the rotating shaft is driven by a motor and is rotatably connected to a top cover of the tank body, a spiral blade is arranged on the rotating shaft, a sleeve fixedly connected with the tank body is arranged outside the spiral blade, the upper end and the lower end of the sleeve are open, gaps are reserved between the upper end and the bottom of the tank body respectively, a liquid distribution disc is arranged above the spiral blade in the tank body, the liquid distribution disc is annular or spiral, round holes with the diameter of 2 mm-3 mm are uniformly and densely distributed, a central hole capable of allowing the rotating shaft to pass through and freely rotate is formed in the center of the liquid distribution disc, a water filling port is formed in the top of the tank body above the liquid distribution disc, an oil inlet is further formed in the upper portion of the tank body between the top of the sleeve and the liquid distribution disc, and an oil outlet and a steam inlet are formed in the lower portion of the tank body;

furthermore, the tank top cover is provided with an opening, a first short pipe is fixedly arranged in the opening, the first short pipe is in threaded connection with a second short pipe, and the rotating shaft is rotatably arranged in the second short pipe.

Further, still be connected with the steam branch pipe on the connecting pipe of steam inlet, steam branch pipe export is located branch liquid dish top, and steam branch pipe export direction subtend to one side branch liquid dish quotation prevents because the last round hole of branch liquid dish is little to make the velocity of flow of water slow and influence the velocity of adding water, steam increases the disturbance to water, increases the velocity of flow, prevents the influence of aperture surface tension to velocity of water.

Further, steam inlet department is connected to the internal steam coil of jar, the equipartition has the steam orifice on the steam coil, steam in the steam coil is high temperature, high-pressure steam, the steam coil is located the sleeve with between the internal wall of jar, the mobility of disturbing that steam multiplicable cotton oil and water mix makes oil water mixture more even, abundant, adjusts oil water mixture's temperature simultaneously.

Further, helical blade keeps away from pivot one side is equipped with the stirring tooth piece, increases oil water mixture's disturbance when sending oil water mixture to the sleeve top from jar body bottom promotion, makes mixing efficiency better.

Furthermore, the diameter of the round holes uniformly distributed on the liquid distribution plate is 2.5 mm.

The device has simple operation, removes soap effectual, need not to add any chemical reagent, and safety ring protects.

Drawings

FIG. 1: schematic diagram of a soap removing device.

FIG. 2: schematic diagram of the stirred tank configuration of example 1.

FIG. 3: the structure of the liquid-separating disc is schematically shown.

FIG. 4: schematic diagram of the stirred tank configuration of example 6.

In the figure: 1. the device comprises a heat exchanger, a stirring kettle, a centrifuge, a vacuum drier, a fine filter, a cooling tank, a tank body, a rotating shaft, a spiral blade, a sleeve, a liquid separating disc, a water inlet, a spiral blade, a sleeve, a liquid separating disc, a fine filter, a water inlet, a spiral blade, a liquid separating disc, a water inlet, a spiral blade, a spiral hole, a spiral blade.

Detailed Description

The following is a detailed description of the present invention for further explanation. The patent protection scope of the present invention is not limited to the above description, and all the equivalent structures or equivalent processes that are used in the specification and the attached drawings are directly or indirectly applied to other related technical fields.

Example 1: a device for removing soap from cotton oil comprises a heat exchanger 1, a stirring kettle 2, a centrifuge 3, a vacuum dryer 4, a fine filter device 5 and a cooling tank 6 which are sequentially connected in series, wherein the fine filter device 5 comprises a primary fine filter 51 and a secondary fine filter 52 which are connected in series, and the aperture of a filter element of each fine filter is 0.1-0.4 mu m.

Example 2: as described in example 1, the fine filter 5 is connected in parallel with a spare fine filter 53.

Example 3: as described in embodiment 1, the stirring tank 2 includes a tank 21, a rotating shaft 22 is provided in the tank 21, the rotating shaft 22 is driven by a motor and is rotationally connected to the top cover of the tank body 21, the rotating shaft 22 is provided with a helical blade 23, the outside of the helical blade 23 is provided with a sleeve 24 fixedly connected with the tank body 21, the upper end and the lower end of the sleeve 24 are opened, and respectively has a gap with the top and the bottom of the tank body 21, a liquid separating disc 25 is arranged above the helical blade 23 in the tank body 21, the liquid separating disc 25 is circular or spiral, round holes 252 with the diameter of 2 mm-3 mm, preferably 2.5mm, are evenly and densely distributed, a central hole 251 which can allow the rotating shaft 22 to pass through and can freely rotate is arranged in the center, a water filling port 26 is arranged at the top of the tank body 21 above the liquid separating disc 25, an oil inlet 27 is further arranged at the upper part of the tank body 21 between the top of the sleeve 24 and the liquid separating disc 25, and an oil outlet 28 and a steam inlet 29 are arranged at the lower part of the tank body 21.

Example 4: as described in embodiment 3, the top cover of the tank 21 has an opening 211, a first short pipe 212 is fixedly installed in the opening 211, the first short pipe 212 is threadedly connected with a second short pipe 213, and the rotating shaft 22 is rotatably installed in the second short pipe 213.

Example 5: as described in embodiment 3, the connection pipe of the steam inlet 29 is further connected with the steam branch pipes 291, the outlet of the steam branch pipes 291 is located above the liquid distribution plate 25, and the outlet direction of the steam branch pipes 291 obliquely faces the disc surface of the liquid distribution plate 25, so that the influence of the slow flow rate of water on the water adding speed due to the small round holes on the liquid distribution plate 25 is prevented, the disturbance of the steam on the water is increased, the flow rate is increased, and the influence of the surface tension of the small holes on the water flow speed is prevented.

Example 6: as embodiment 3, steam inlet 29 department is connected to the interior steam coil 292 of jar body 21, the equipartition has the steam orifice on the steam coil 292, the steam in the steam coil 292 is high temperature, high pressure steam, steam coil is located the sleeve with between the internal wall of jar, the disturbance nature that steam can increase cotton oil and water mixture makes oil-water mixture more even, abundant, adjusts oil-water mixture's temperature simultaneously, helical blade 23 keeps away from pivot 22 one side is equipped with stirring teeth piece 231, increases oil-water mixture's disturbance when lifting oil-water mixture from jar body 21 bottom and sending to the sleeve top, makes mixing efficiency better.

The specific implementation process comprises the following steps:

step one, steam heating: feeding cotton oil with soap content less than or equal to 800mg/kg into a heat exchanger, and heating to 80-100 ℃ by steam;

step two, stirring and washing: feeding the cotton oil heated in the step one into a stirring kettle, and simultaneously adding 3-5% of hot water for stirring and washing, wherein the temperature of the hot water is 85-100 ℃;

step three, centrifugal separation: feeding the cotton oil which is fully mixed and stirred by adding hot water in the step two into a centrifugal machine for oil-water separation, wherein the soap content of the cotton oil after washing is less than or equal to 200 mg/kg;

step four, vacuum drying: sending the cotton oil after centrifugal separation in the third step into a vacuum drier for heating and drying, wherein the vacuum degree of the vacuum drier is-0.086 MPa to-0.094 MPa, and the oil temperature is heated to 120 ℃ to 130 ℃;

step five, fine filtration: sending the cotton oil dried in vacuum in the fourth step into a fine filtering device for fine filtering, wherein the aperture of a filter element of the fine filtering device is 0.1-0.4 mu m, the oil temperature of an oil inlet of the fine filtering device is controlled at 105-115 ℃, and the internal pressure of the fine filtering device is controlled at 0.25-0.35 MPa;

step six, cooling: cooling the cotton oil filtered in the step five to be less than or equal to 40 ℃, and finely filtering the cotton oil by a fine filtering device to obtain the cotton oil containing soap of which the content is less than or equal to 80 mg/kg.

The device is simple to operate, has good soap removing effect, does not need to add any chemical reagent, and is safe and environment-friendly.

Claims

1. A device for removing soap from cotton oil comprises a heat exchanger, a stirring kettle, a centrifugal machine, a vacuum dryer, a fine filter device and a cooling tank which are sequentially connected in series, wherein the fine filter device comprises a first-stage fine filter and a second-stage fine filter which are connected in series, and the aperture of a filter element of the fine filter is 0.1-0.4 mu m.

2. The device for removing soap from cotton oil as claimed in claim 1, wherein said fine filtering means is connected in parallel with a spare fine filtering means.

3. The device for removing soap from cotton oil as claimed in claim 1, wherein said stirring tank comprises a tank body, a rotating shaft is arranged in the tank body, the rotating shaft is driven by a motor and is rotationally connected to the top cover of the tank body, the rotating shaft is provided with a helical blade, the outside of the helical blade is provided with a sleeve fixedly connected with the tank body, the upper end and the lower end of the sleeve are provided with openings, gaps are respectively reserved between the spiral blades and the top and the bottom of the tank body, a liquid separating disc is arranged above the spiral blades in the tank body, the liquid separating disc is annular or spiral, round holes with the diameter of 2 mm-3 mm are uniformly and densely distributed, a central hole which can be passed by the rotating shaft and can freely rotate is arranged in the center, the top of the tank body is provided with a water filling port above the liquid separating disc, the upper part of the tank body is provided with an oil inlet between the top of the sleeve and the liquid separating disc, and the lower part of the tank body is provided with an oil outlet and a steam inlet.

4. The device for removing soap from cotton oil as claimed in claim 3, wherein the top cover of the tank body is provided with an opening, a first short pipe is fixedly arranged in the opening, the first short pipe is connected with a second short pipe in a threaded manner, and the rotating shaft is rotatably arranged in the second short pipe.

5. The device for removing soap from cotton oil as claimed in claim 3, wherein the connecting pipe of the steam inlet is further connected with a steam branch pipe, the outlet of the steam branch pipe is positioned above the liquid separating disc, and the outlet direction of the steam branch pipe obliquely faces the disc surface of the liquid separating disc, so that the influence of the slow flow rate of water on the water adding speed due to the small round holes on the liquid separating disc is prevented, the disturbance of the steam on the water is increased, the flow rate is increased, and the influence of the surface tension of the small holes on the water flow speed is prevented.

6. The device for removing soap from cotton oil as claimed in claim 3, wherein the steam inlet is connected to a steam coil pipe in the tank body, steam spraying holes are uniformly distributed on the steam coil pipe, the steam in the steam coil pipe is high-temperature and high-pressure steam, the steam coil pipe is located between the sleeve and the inner wall of the tank body, and the steam can increase the mixing turbulence of cotton oil and water, so that the oil-water mixture is more uniform and sufficient, and the temperature of the oil-water mixture is adjusted.

7. The device for removing soap from cotton oil as claimed in claim 3, wherein the helical blade has agitating teeth on the side away from the rotating shaft to increase the disturbance of the oil-water mixture when the oil-water mixture is lifted from the bottom of the tank to the top of the sleeve, so as to improve the mixing efficiency.

8. A cotton oil soap removing device as claimed in claim 3, wherein said liquid separating disc is uniformly distributed with circular holes having a diameter of 2.5 mm.