Feeding device for crude biodiesel butterfly separator

Abstract

The utility model discloses a crude biodiesel butterfly separator feeding device: the feeding pipe is connected in sequence to the material valve in front of the feeding pump, the feeding pump, the material check valve, the feeding pump outlet valve, the discharging pipe, the coarse filter, the flow meter, the pressure gauge and the inlet and outlet pipe valve; the hot water pipe is divided into two paths, one of which is connected to the inlet pipe of the feeding pump after the hot water valve in front of the feeding pump, and the other is connected in sequence to the inlet valve of the hot water pump, the hot water pump, the hot water check valve, the hot water pump outlet valve, the electromagnetic flow meter, the hot water pressure gauge and the hot water valve in the inlet and outlet pipe valves and then meets; after the meeting, it is connected in sequence to the distribution pipe, the outlet distribution pipe valve, the fine filter and the sight glass and then divided into two paths, one of which is connected in sequence to the inlet separator valve and the separator feeding hose, and the other is connected in sequence to the waste water valve in front of the separator and the waste water tank water pipe. The utility model has low manufacturing and maintenance costs, convenient and efficient operation, and small amount of cleaning waste water generation, and solves the problems of large vibration and high failure rate of the existing butterfly separator during operation.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for production of organic chemical products biodiesel, in particular to a feeding device for a butterfly separator of crude biodiesel. Background Art

[0002] Industrial production of biodiesel generally uses waste animal and vegetable oils as raw materials. After purification, the raw oil is added with acid or alkaline catalysts, methanol and other materials at a specific temperature, and crude biodiesel is obtained through methyl esterification and transesterification. Crude biodiesel contains glycerol, saponification, impurities, etc., which can be effectively removed by a butterfly separator, and then the finished biodiesel is produced by high vacuum continuous decompression distillation.

[0003] After methyl esterification and transesterification, crude biodiesel contains a small amount of glycerol, saponification and impurities, which are separated by a butterfly separator at about 6000r / min. How to use the butterfly separator correctly is related to the cleanliness of crude biodiesel separation, and has a great impact on the effective production time and product quality of the high vacuum decompression distillation process.

[0004] After the existing crude biodiesel butterfly separator has been running for a period of time, impurities such as glycerin, soap and fine particles will accumulate on the disc, which needs to be cleaned regularly with hot water, usually once a day. In addition, glycerin, soap and other impurities will also be deposited on the impeller and pipeline of the feed pump of the feeding device, which will reduce the feed flow rate and also need to be cleaned regularly. At present, there are many deficiencies in the feeding device of the butterfly separator, which makes the butterfly separator vibrate greatly and has a high failure rate when working, seriously affecting the normal use of the butterfly separator.

[0005] The shortcomings of the existing butterfly separator feeding device are summarized as follows:

[0006] (1) There is no filter in front of the feed hose near the butterfly separator, only a filter is installed at the outlet of the feed pump. When the feed pipeline is inspected or manually disassembled and cleaned, the residual impurities in the pipeline will inevitably enter the butterfly separator, causing the butterfly separator to be eccentric and vibrate violently.

[0007] (2) After a period of use, saponification will accumulate on the impeller and inner wall of the feed pump of the butterfly separator feeding device. Frequent manual disassembly and cleaning of the pump and pipeline is necessary, which is labor-intensive and troublesome.

[0008] (3) The pipes and fittings of the butterfly separator feeding system are made of carbon steel and the inner wall of the pipes is rough, which makes it easy for soap impurities to accumulate. Summary of the invention

[0009] The purpose of the utility model is to provide a crude biodiesel butterfly separator feeding device with low manufacturing and maintenance costs, convenient and efficient operation, safe and reliable production, and small amount of cleaning wastewater generation, so as to solve the problems in the prior art that the butterfly separator has large vibrations and high failure rate during operation due to many defects in the feeding device.

[0010] In order to achieve the above purpose, the feeding device of the crude biodiesel butterfly separator of the utility model has the following structure: the feeding pipe 1 is connected in sequence to the material valve 2 in front of the feeding pump, the IH-type feeding pump 3, the material check valve 4, the feeding pump outlet valve 5, the discharge pipe 6, the Y-type coarse filter 7, the mass flow meter 8, the material pressure gauge 12 and the material valve 9 of the inlet and outlet pipe; the hot water pipe 19 is divided into two paths, one of which is connected to the inlet pipe of the IH-type feeding pump 3 after passing through the hot water valve 20 in front of the feeding pump, and the other is connected in sequence to the inlet valve 21 of the hot water pump , IH type hot water pump 22, hot water check valve 23, hot water pump outlet valve 24, electromagnetic flowmeter 25, hot water pressure gauge 26 and hot water valve 27 of the inlet distribution pipe meet with the outlet of the inlet distribution pipe material valve 9; after the two routes meet, they are connected in sequence to the distribution pipe 10, the outlet distribution pipe valve 11, the Y-type fine filter 13 and the sight glass 14 and then divided into two routes, one route is connected in sequence to the separator inlet valve 15 and the separator feed hose 16, and the other route is connected in sequence to the waste water valve 17 before the separator and the waste water tank pipe 18.

[0011] The crude biodiesel butterfly separator feeding device of the above structure has the following technical characteristics and beneficial effects:

[0012] (1) Install a thinner stainless steel Y-type filter in front of the butterfly separator feed hose to prevent residual impurities from entering the butterfly separator during maintenance and disassembly of the pipeline, thereby avoiding imbalance of the butterfly separator drum and excessive vibration values.

[0013] (2) Connect the hot water from the hot water tank to the feed pump inlet. The hot water can be used to clean the feed pump impeller, pipes, valves and filters. The cleaning wastewater is connected to a pipeline to the wastewater tank before entering the butterfly separator, and no longer enters the butterfly separator. This can effectively solve the scaling and blockage problems of the feed pump impeller, pipe inner wall, filter, etc. of the feeding device, reduce manual disassembly and cleaning, reduce the labor intensity of employees, greatly shorten the cleaning time, and improve the production efficiency of the separator; at the same time, the impurities in the cleaning wastewater do not enter the butterfly separator, which greatly reduces the probability of separator failure.

[0014] (3) The device is reasonably designed and can be applied to various working conditions. It is simple and convenient to operate. Hot water can be used to clean the feeder pump, pipes, filters, etc. alone, or to clean the butterfly separator alone, or to clean the feeder and the butterfly separator at the same time. The wastewater that is dirty and has more impurities at the beginning of cleaning the feeder can be directly sent to the wastewater tank, and the cleaner wastewater in the later stage can also be used to clean the butterfly separator to reduce the amount of wastewater generated.

[0015] (4) The material pipeline and hot water pipeline of the feeding device are made of 304 stainless steel, with smooth inner walls, no rust and no impurities easily deposited. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the structure of a feeding device of a crude biodiesel butterfly separator.

[0017] Figure numerals: feed pipe 1, material valve in front of feed pump 2, IH type feed pump 3, material check valve 4, feed pump outlet valve 5, discharge pipe 6, Y-type coarse filter 7, mass flow meter 8, material valve inlet and distribution pipe 9, distribution pipe 10, valve out of distribution pipe 11, material pressure gauge 12, Y-type fine filter 13, sight glass 14, separator inlet valve 15, separator feed hose 16, waste water valve in front of separator 17, waste water tank pipe 18, hot water pipe 19, hot water valve in front of feed pump 20, hot water pump inlet valve 21, IH type hot water pump 22, hot water check valve 23, hot water pump outlet valve 24, electromagnetic flowmeter 25, hot water pressure gauge 26 and hot water valve inlet and distribution pipe 27. DETAILED DESCRIPTION

[0018] The specific implementation of the crude biodiesel butterfly separator feeding device of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Figure 1 As shown, the structure of the feeding device of the crude biodiesel butterfly separator of the utility model is as follows: the feeding pipe 1 is connected in sequence to the material valve 2 in front of the feeding pump, the IH type feeding pump 3, the material check valve 4, the feeding pump outlet valve 5, the discharge pipe 6, the Y type coarse filter 7, the mass flow meter 8, the material pressure gauge 12 and the material valve 9 of the inlet and outlet pipe; the hot water pipe 19 is divided into two paths, one of which is connected to the inlet pipe of the IH type feeding pump 3 after passing through the hot water valve 20 in front of the feeding pump, and the other is connected in sequence to the inlet valve 21 of the hot water pump, the IH type feeding pump 3, and the IH type feeding pump 3. The H-type hot water pump 22, the hot water check valve 23, the hot water pump outlet valve 24, the electromagnetic flowmeter 25, the hot water pressure gauge 26 and the hot water valve 27 of the inlet distribution pipe meet with the outlet of the inlet distribution pipe material valve 9; after the two routes meet, they are connected in sequence to the distribution pipe 10, the outlet distribution pipe valve 11, the Y-type fine filter 13 and the sight glass 14 and then divided into two routes, one route is connected in sequence to the separator inlet valve 15 and the separator feed hose 16, and the other route is connected in sequence to the separator front wastewater valve 17 and the wastewater tank water pipe 18.

[0020] The flow rate of the feed pump and the hot water pump can be selected according to the capacity of the butterfly separator, and the head can be 20 meters; the motors of the feed pump and the hot water pump can be installed with a frequency converter for control; the Y-type coarse filter 7 can choose a 20-30 mesh stainless steel filter mesh, and the Y-type fine filter 13 can choose a 40-60 mesh stainless steel filter mesh; the temperature of the crude biodiesel entering the butterfly separator and the temperature of the hot water for cleaning the butterfly separator are more appropriately controlled at 70-80°C.

[0021] The operating steps of the feeding device of the crude biodiesel butterfly separator of the utility model are as follows:

[0022] 1. Power on operation

[0023] (1) Before starting the butterfly separator, start the hot water pump system: open the hot water pump inlet valve 21 and the hot water pump outlet valve 24, close the hot water inlet valve 27 of the distribution pipe, start the IH hot water pump 22, and let the hot water from the hot water tank enter the outlet pipe of the IH hot water pump 22 from the hot water pipe 19. Adjust the motor frequency, and the hot water pressure gauge 26 shows a pressure of about 0.2 MPa for standby use.

[0024] (2) Before feeding the butterfly separator, open the feeding system: close the hot water valve 20 in front of the feed pump and the material valve 9 in the distribution pipe, open the material valve 2 in front of the feed pump and the feed pump outlet valve 5, and the crude biodiesel before separation enters the IH feed pump 3 from the feed pipe 1. Start the IH feed pump 3, adjust the motor frequency, and the material pressure gauge 12 shows a pressure of about 0.2MPa for standby use.

[0025] (3) Before starting the butterfly separator, close the separator inlet valve 15 and the wastewater valve 17 in front of the separator, open the butterfly separator outlet valve to the wastewater tank, and close the butterfly separator outlet valve to the oil storage tank. After the butterfly separator starts normally, open the separator inlet valve 15 and the outlet distribution pipe valve 11, slowly open the hot water valve 27 in the distribution pipe, wash the butterfly separator drum with hot water for a few minutes, then close the hot water valve 27 in the distribution pipe, and then slowly open the material valve 9 in the distribution pipe, and the crude biodiesel enters the butterfly separator for separation. When the sight glass at the butterfly separator outlet observes crude biodiesel, open the butterfly separator outlet valve to the crude biodiesel storage tank after separation, close the butterfly separator outlet valve to the wastewater tank, adjust the motor frequency of the IH type feed pump 3 to control the feed flow rate, and the butterfly separator operates continuously and normally.

[0026] 2. When the feed flow of the butterfly separator is normal, but the separation effect of the butterfly separator is poor, the butterfly separator drum can be cleaned with hot water alone. Specific operation: close the material valve 9 of the distribution pipe to stop feeding, slowly open the hot water valve 27 of the distribution pipe, hot water enters the butterfly separator, and then switch the outlet of the butterfly separator to the waste water tank; use the hot water from the hot water pump to clean the drum disc of the butterfly separator until the water in the butterfly separator outlet mirror is clean, then close the hot water valve 27 of the distribution pipe, slowly open the material valve 9 of the distribution pipe, and re-separate the crude biodiesel. When you see that the outlet mirror of the butterfly separator is crude biodiesel, open the valve from the butterfly separator outlet to the crude biodiesel storage tank after separation, close the valve to the waste water tank at the butterfly separator outlet, and continue to separate the crude biodiesel.

[0027] 3. Specific operations when using hot water to clean the feed system (without passing through the butterfly separator): Close the material valve 2 in front of the feed pump, the separator valve 15, and the hot water valve 27 in the distribution pipe, open the wastewater valve 17 in front of the separator, the distribution pipe valve 11, the material valve 9 in the distribution pipe, the feed pump outlet valve 5, and the hot water valve 20 in front of the feed pump, start the IH type feed pump 3, and use hot water to clean the feed pump impeller, pipes, valves, and filters. When the wastewater in the sight glass 14 is observed to be clean, stop the IH type feed pump 3, and close the hot water valve 20 in front of the feed pump and the wastewater valve 17 in front of the separator.

[0028] 4. When the butterfly separator is turned on, when the motor frequency of the feed pump is adjusted to 50HZ, the feed system valve is fully opened, and the feed flow rate does not reach the normal value, the feed pump impeller, Y-type coarse filter 7 and Y-type fine filter 13 may be blocked. You can stop feeding first and clean the feed system with hot water.

[0029] Note:

[0030] 1. The material valve 2 in front of the feed pump and the hot water valve 20 in front of the feed pump must not be opened at the same time, which may easily cause the crude biodiesel or hot water to flow back.

[0031] 2. The Y-type coarse filter 7 and the Y-type fine filter 13 can be manually disassembled and cleaned regularly.

Claims

1. A feeding device for a crude biodiesel butterfly separator, characterized by: The structure is as follows: a feed pipe (1) is connected in sequence to a material valve (2) in front of a feed pump, an IH-type feed pump (3), a material check valve (4), a feed pump outlet valve (5), a discharge pipe (6), a Y-type coarse filter (7), a mass flow meter (8), a material pressure gauge (12) and a material valve (9) in an inlet and outlet pipe; a hot water pipe (19) is divided into two paths, one of which is connected to an inlet pipe of the IH-type feed pump (3) after passing through a hot water valve (20) in front of the feed pump, and the other is connected in sequence to an inlet valve (21) of a hot water pump, an IH-type hot water pump (22), a hot water pump (33) and a hot water pump (34). The check valve (23), the hot water pump outlet valve (24), the electromagnetic flowmeter (25), the hot water pressure gauge (26) and the hot water valve (27) of the inlet distribution pipe meet with the outlet of the material valve (9) of the inlet distribution pipe; after the two paths meet, they are connected in sequence to the distribution pipe (10), the outlet distribution pipe valve (11), the Y-type fine filter (13) and the sight glass (14) and then divided into two paths, one of which is connected in sequence to the separator inlet valve (15) and the separator feed hose (16), and the other is connected in sequence to the separator front waste water valve (17) and the waste water tank water pipe (18).

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