Liquid raw material conveying system

Abstract

The utility model relates to the technical field of material conveying, and discloses a liquid raw material conveying system which comprises a raw material storage tank, a recycling pipeline, a discharging pipeline and a cleaning unit. The discharging pipeline is used for conveying the raw materials in the raw material storage tank to processing equipment for processing; the cleaning unit comprises a cleaning liquid storage tank, a first cleaning pipeline and a second cleaning pipeline, the first cleaning pipeline is communicated with the cleaning liquid storage tank and the raw material storage tank so as to introduce cleaning liquid into the raw material storage tank for cleaning, and the second cleaning pipeline is communicated with the cleaning liquid storage tank and the discharging pipeline so as to introduce cleaning liquid into the raw material storage tank for cleaning; and the cleaning liquid is introduced into the discharging pipeline for cleaning. The liquid raw material conveying system has a good cleaning effect, the raw material storage tank, the material receiving pipeline and the discharging pipeline can be cleaned, residual impurities are prevented from being mixed with liquid raw materials to be conveyed, and it is ensured that the liquid raw material conveying system can be suitable for conveying different types of liquid raw materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to material conveying technical field, in particular to a kind of liquid raw material conveying system. BACKGROUND

[0002] The main mode of current liquid raw material conveying is to transport food processing raw materials to the placement position of storage tank by using tank container vehicle, then food processing raw materials in tank container vehicle are conveyed into storage tank by using material collecting pipeline, and then food processing raw materials in storage tank are conveyed into processing equipment by discharging pipeline for processing, so as to complete the conveying of raw materials.

[0003] The current liquid conveying system can convey different types of raw materials, and after conveying is completed, there are still a large amount of liquid raw materials on the storage tank, material collecting pipeline and discharging pipeline, which need to be treated in time by using cleaning liquid to avoid different types of food raw materials from mixing, but the conventional cleaning method has the problems of poor cleaning effect and easy residue of impurities, which still causes different types of food raw materials to mix. UTILITY MODEL CONTENTS

[0004] The purpose of the present application is to provide a liquid raw material conveying system, which aims to solve the problems of poor cleaning effect and easy residue of impurities of the current liquid raw material conveying system.

[0005] The present application provides a kind of liquid raw material conveying system, comprising:

[0006] Raw material storage tank;

[0007] Material collecting pipeline for conveying raw materials in tank container vehicle into the raw material storage tank;

[0008] Discharging pipeline for conveying raw materials in the raw material storage tank to processing equipment for processing;

[0009] Cleaning unit, which includes cleaning liquid storage tank, first cleaning pipeline and second cleaning pipeline, the first cleaning pipeline is communicated with the cleaning liquid storage tank and the raw material storage tank, to pass cleaning liquid into the raw material storage tank for cleaning, the second cleaning pipeline is communicated with the cleaning liquid storage tank and the discharging pipeline, to pass cleaning liquid into the discharging pipeline for cleaning.

[0010] In one embodiment, the cleaning unit further comprises a first return pipeline, a second return pipeline and a third return pipeline, the first return pipeline connecting the cleaning liquid storage tank and the raw material storage tank to return the cleaned liquid in the raw material storage tank to the cleaning liquid storage tank, the second return pipeline connecting the discharge pipeline and the cleaning liquid storage tank to return the cleaned liquid in the discharge pipeline to the cleaning liquid storage tank, and the third return pipeline connecting the cleaning liquid storage tank and the material collection pipeline to return the cleaned liquid in the material collection pipeline to the cleaning liquid storage tank.

[0011] In one embodiment, the first cleaning pipeline is provided with a first change-over valve and a first cleaning valve in sequence along the fluid flow direction, the first auxiliary pipeline has one end connected to the first change-over valve, the first auxiliary pipeline is provided with a first three-way ball valve, the first return pipeline is provided with a second change-over valve, and the first material recovery pipeline has one end connected to the second change-over valve.

[0012] In one embodiment, the first return pipeline is provided with a first pipeline sight glass, a first centrifugal pump, a first recovery valve and a first check valve in sequence along the fluid flow direction.

[0013] In one embodiment, the second cleaning pipeline is provided with a third change-over valve and a second cleaning valve in sequence along the fluid flow direction, the second auxiliary pipeline has one end connected to the third change-over valve, the second auxiliary pipeline is provided with a second three-way ball valve, the second return pipeline is provided with a fourth change-over valve, and the second material recovery pipeline has one end connected to the fourth change-over valve.

[0014] In one embodiment, the second return pipeline is provided with a second recovery valve, a second pipeline sight glass and a second check valve in sequence along the fluid flow direction, and the fourth change-over valve is located between the second recovery valve and the second pipeline sight glass.

[0015] In one embodiment, the third material recovery pipeline has one end connected to the fifth change-over valve.

[0016] In an embodiment, the collecting pipeline comprises a collecting main pipe and a collecting branch pipe, one end of the collecting branch pipe is connected with the collecting main pipe, and the other end is communicated with the raw material storage tank, the collecting main pipe is provided with a connecting head at one end connected with the tank container vehicle, the connecting head is connected with the discharge port of the tank container vehicle through a hose, so that the raw material in the tank container vehicle is input into the raw material storage tank, and the other end of the collecting main pipe is communicated with the third reflux pipeline.

[0017] In an embodiment, the collecting main pipe is sequentially provided with a first filter, a second centrifugal pump, a fourth check valve, a second filter, a first control valve and a fourth pipeline sight glass along the fluid flow direction, and the collecting branch pipe is provided with a first valve group.

[0018] In an embodiment, the discharging pipeline comprises a discharging main pipe, a first discharging branch pipe and a second discharging branch pipe, one end of the first discharging branch pipe is connected with the discharging main pipe, and the other end is communicated with the raw material storage tank, one end of the discharging main pipe is communicated with the second reflux pipeline, and the other end is connected with the second cleaning pipeline, one end of the second discharging branch pipe is connected with the discharging main pipe, and the other end is connected with the processing equipment.

[0019] In an embodiment, the collecting main pipe is sequentially provided with a first filter, a second centrifugal pump, a fourth check valve, a second filter, a first control valve and a fourth pipeline sight glass along the fluid flow direction, and the collecting branch pipe is provided with a first valve group.

[0020] Compared with the prior art, the liquid raw material conveying system provided by the embodiment has the following beneficial effects:

[0021] The first cleaning pipeline is used to communicate the raw material storage tank with the cleaning liquid storage tank, and the second cleaning pipeline is used to communicate the cleaning liquid storage tank with the discharging pipeline, so that the cleaning liquid in the cleaning liquid storage tank is respectively input into the raw material storage tank and the discharging pipeline, and then the liquid raw material remaining in the raw material storage tank and the discharging pipeline can be cleaned, so as to avoid the mixing of different types of liquid raw materials due to the remaining impurities, and to avoid the production quality not meeting the standard. At the same time, the cleaning pipeline is used to input the cleaning liquid into the collecting pipeline to clean the collecting pipeline, so as to avoid the mixing of the liquid raw material and the impurities remaining in the collecting pipeline during the conveying of the liquid raw material in the tank container vehicle to the raw material storage tank. That is, the liquid raw material conveying system has good cleaning effect, and can clean the raw material storage tank, the collecting pipeline and the discharging pipeline, so as to prevent the mixing of the remaining impurities and the liquid raw material to be conveyed, and to ensure that the liquid raw material conveying system can be applied to conveying different types of liquid raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1is a schematic view of a liquid raw material conveying system according to an embodiment of the present application;

[0023] Figure 2 is another schematic view of a liquid raw material conveying system according to an embodiment of the present application.

[0024] Reference numerals in the drawings:

[0025] 10, raw material storage tank; 20, connecting head; 30, material collecting pipeline; 31, main material collecting pipe; 32, branch material collecting pipe; 40, material discharging pipeline; 41, main material discharging pipe; 42, first branch material discharging pipe; 43, second branch material discharging pipe; 51, first cleaning pipeline; 52, second cleaning pipeline; 53, first backflow pipeline; 54, second backflow pipeline; 55, third backflow pipeline; 61, first auxiliary pipeline; 62, first material recovery pipeline; 63, first change-over valve; 64, first cleaning valve; 65, first three-way ball valve; 66, second change-over valve; 71, first pipeline sight glass; 72, first centrifugal pump; 73, first recovery valve; 74, first check valve; 81, second auxiliary pipeline; 82, second material recovery pipeline; 83, third change-over valve; 84, second cleaning valve; 85, second three-way ball valve; 86, fourth change-over valve; 91, second recovery valve; 92, second pipeline sight glass; 93, second check valve; 100, third material recovery pipeline; 111, third recovery valve; 112, fifth change-over valve; 113, third pipeline sight glass; 114, third check valve; 211, first filter; 212, second centrifugal pump; 213, second filter; 214, first control valve; 215, fourth pipeline sight glass; 216, fourth check valve; 217, first valve group; 311, second control valve; 312, third filter; 313, third centrifugal pump; 314, fifth check valve; 315, third control valve; 316, third valve group; 317, second valve group; 400, hose; 500, external cleaning pipeline; 600, air compressor; 700, tank container vehicle. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and cannot be understood as indicating that the devices or elements indicated must have a particular direction, therefore it cannot be understood as a limitation on the present application.

[0027] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0028] As shown in Figure 1 and Figure 2 The present application provides a liquid raw material conveying system, which comprises a raw material storage tank 10, a receiving pipeline 30, a discharging pipeline 40 and a cleaning unit.

[0029] Specifically, the receiving pipeline 30 is connected between the raw material storage tank 10 and the discharging port of the tank container vehicle 700, and is used to transport the raw material in the tank container vehicle 700 to the raw material storage tank 10. The discharging pipeline 40 is connected between the raw material storage tank 10 and the processing equipment, and is used to transport the raw material in the raw material storage tank 10 to the processing equipment for processing. The cleaning unit comprises a cleaning liquid storage tank, a first cleaning pipeline 51 and a second cleaning pipeline 52. The first cleaning pipeline 51 communicates the cleaning liquid storage tank and the raw material storage tank 10, so as to pass the cleaning liquid into the raw material storage tank 10 for cleaning. The second cleaning pipeline 52 communicates the cleaning liquid storage tank and the discharging pipeline 40, so as to pass the cleaning liquid into the discharging pipeline 40 for cleaning.

[0030] The present application communicates the raw material storage tank 10 and the cleaning liquid storage tank through the first cleaning pipeline 51, and communicates the cleaning liquid storage tank and the discharging pipeline 40 through the second cleaning pipeline 52, so that the cleaning liquid in the cleaning liquid storage tank is passed into the raw material storage tank 10 and the discharging pipeline 40, respectively, thereby cleaning the liquid raw material remaining in the raw material storage tank 10 and the discharging pipeline 40, and avoiding the mixing of different types of liquid raw materials due to the presence of impurities, which leads to the production quality not meeting the standard. At the same time, the cleaning pipeline 500 is used to pass the cleaning liquid into the receiving pipeline 30 to clean the receiving pipeline 30, so as to avoid the mixing of the liquid raw material and the impurities remaining in the receiving pipeline 30 in the process of conveying the liquid raw material in the tank container vehicle 700 to the raw material storage tank 10. That is, the liquid raw material conveying system has good cleaning effect, and can clean the raw material storage tank 10, the receiving pipeline 30 and the discharging pipeline 40, so as to prevent the mixing of the remaining impurities and the liquid raw material to be conveyed, and ensure that it can be applied to conveying different types of liquid raw materials.

[0031] Exemplarily, the liquid raw material conveying system of the embodiment is to firstly use the tank container vehicle 700 to transport the liquid raw material to the position where the raw material storage tank 10 is placed, and then use the receiving pipeline 30 to transport the liquid raw material in the tank container vehicle 700 to the raw material storage tank 10, and then transport the liquid raw material in the raw material storage tank 10 to the processing equipment through the discharging pipeline 40 for processing, so as to realize automatic receiving and discharging. That is, the receiving pipeline 30 functions to connect the tank container vehicle 700 and the raw material storage tank 10, so that the liquid raw material in the tank container vehicle 700 can be transported to the raw material storage tank 10. The connection between the receiving pipeline 30 and the tank container vehicle 700 can refer to the prior art, and will not be described in detail. Similarly, the discharging pipeline 40 functions to transport the liquid raw material temporarily stored in the raw material storage tank 10 to the processing equipment, so that the liquid raw material is fed into the processing equipment for processing.

[0032] Exemplarily, when different kinds of liquid raw materials are conveyed, the residual raw materials in the receiving pipeline 30, the discharging pipeline 40 and the raw material storage tank 10 need to be cleaned to avoid mixing of the residual impurities with the liquid raw materials, resulting in products that do not meet the quality standards. In this embodiment, the first cleaning pipeline 51 is used to connect the cleaning liquid storage tank and the raw material storage tank 10, and the second cleaning pipeline 52 is used to connect the cleaning liquid storage tank and the discharging pipeline 40, so that the cleaning liquid in the cleaning liquid storage tank is fed into the raw material storage tank 10 through the first cleaning pipeline 51 and into the discharging pipeline 40 through the second cleaning pipeline 52, thereby cleaning the impurities remaining in the raw material storage tank 10 and the discharging pipeline 40. The receiving pipeline 30 is not connected to the cleaning liquid storage tank by the cleaning pipeline, so an external cleaning device needs to be additionally connected to the cleaning pipeline to feed the cleaning liquid into the receiving pipeline 30, thereby cleaning the impurities remaining in the receiving pipeline 30, so as to ensure that different kinds of liquid raw materials are not mixed due to residual impurities when they are conveyed.

[0033] In an embodiment, the cleaning unit further comprises a first return pipeline 53, a second return pipeline 54 and a third return pipeline 55. The first return pipeline 53 is connected to the raw material storage tank 10 and the cleaning liquid storage tank to recycle the cleaned liquid in the raw material storage tank 10 into the cleaning liquid storage tank. The second return pipeline 54 is connected to the discharge pipeline 40 and the cleaning liquid storage tank to recycle the cleaned liquid in the discharge pipeline 40 into the cleaning liquid storage tank. The third return pipeline 55 is connected to the cleaning liquid storage tank and the material collection pipeline 30 to recycle the cleaned liquid in the material collection pipeline 30 into the cleaning liquid storage tank. That is, after the raw material storage tank 10, the material collection pipeline 30 and the discharge pipeline 40 are cleaned respectively, the cleaned liquid in the raw material storage tank 10 is recycled into the cleaning liquid storage tank through the first return pipeline 53, the cleaned liquid in the discharge pipeline 40 is recycled into the cleaning liquid storage tank through the second return pipeline 54, and the cleaned liquid in the material collection pipeline 30 is recycled into the cleaning liquid storage tank through the third return pipeline 55, so that the cleaned liquid is recycled and utilized, the waste of cleaning liquid is reduced, and the resources are saved.

[0034] Since the raw material storage tank 10 contains residual material, if the residual raw material is directly cleaned, the raw material will be wasted. To this end, in an embodiment, a first auxiliary pipeline 61 and a first material recycling pipeline 62 are further included. The first cleaning pipeline 51 is sequentially provided with a first reversing valve 63 and a first cleaning valve 64 along the fluid flow direction. One end of the first auxiliary pipeline 61 is connected to the first reversing valve 63. A first three-way ball valve 65 is arranged on the first auxiliary pipeline 61. A second reversing valve 66 is arranged on the first return pipeline 53. One end of the first material recycling pipeline 62 is connected to the second reversing valve 66. That is, before the raw material storage tank 10 is cleaned, for liquid raw material with small viscosity, the residual raw material in the raw material storage tank 10 can be pushed out by air top material, that is, the first cleaning valve 64 is opened, compressed air is introduced into the first auxiliary pipeline 61 through the air compressor 600, and then into the first cleaning pipeline 51. The compressed air enters the raw material storage tank 10 to push the raw material in the raw material storage tank 10 to flow to the first return pipeline 53, and then flows out of the first material recycling pipeline 62 through the second reversing valve 66. After the raw material is recycled, cleaning liquid is introduced into the first cleaning pipeline 51 for cleaning. In this way, the raw material can be recycled, unnecessary waste is reduced, and the production cost is reduced.

[0035] In other embodiments, if the viscosity of the delivered liquid raw material is too large, the residual raw material in the raw material storage tank 10 cannot be pushed out by compressed air, and in this case, water can be introduced into the first auxiliary pipeline 61, and then the water enters the raw material storage tank 10 through the first cleaning pipeline 51, so that the residual raw material in the raw material storage tank 10 flows out onto the first return pipeline 53, and then the second change-over valve 66 is switched from the first material recovery pipeline 62 to achieve recovery of the residual raw material in the raw material storage tank.

[0036] In an embodiment, the first return pipeline 53 is sequentially provided with a first pipeline sight glass 71, a first centrifugal pump 72, a first recovery valve 73, and a first check valve 74 along the fluid flow direction. In this way, under the action of the first centrifugal pump 72, the cleaning liquid introduced into the raw material storage tank 10 flows back into the cleaning liquid storage tank, reducing the waste of cleaning liquid. When recovering the residual raw material in the raw material storage tank, it is necessary to observe the recovered residual raw material to avoid excessive dilution of the raw material, which would result in the raw material after subsequent recovery not meeting the requirements. Therefore, in this embodiment, the first pipeline sight glass 71 is provided on the first return pipeline 53, so that the operator can observe the color of the raw material through the first pipeline sight glass 71, and thus can stop recovery according to the change in color. In addition, the first recovery valve 73 is used to control the opening and closing of the first return pipeline 53, and thus the first recovery valve 73 can be selectively opened according to the needs to open the first return pipeline 53, meeting different production needs. The first check valve 74 can prevent the fluid entering the first return pipeline from flowing backward, i.e., when the fluid in the first return pipeline 53 stops flowing or the flow direction changes, the first check valve 74 can automatically close to prevent the fluid from flowing backward, avoiding damage to the system or unnecessary pressure fluctuations.

[0037] In an embodiment, a second auxiliary pipeline 81 and a second material recovery pipeline 82 are further included, the second cleaning pipeline 52 is sequentially provided with a third change-over valve 83 and a second cleaning valve 84 along the fluid flow direction, one end of the second auxiliary pipeline 81 is connected to the third change-over valve 83, the second auxiliary pipeline 81 is provided with a second three-way ball valve 85, the second return pipeline 54 is provided with a fourth change-over valve 86, and one end of the second material recovery pipeline 82 is connected to the fourth change-over valve 86.

[0038] Exemplarily, before cleaning the discharge pipeline 40, for liquid raw materials with smaller viscosity, the residual raw materials in the discharge pipeline 40 can be pushed out in the air-lifting mode, that is, the second cleaning valve 84 is opened, and the compressed air is introduced into the second auxiliary pipeline 81 through the air compressor 600, and then the compressed air flowing into the second auxiliary pipeline 81 flows to the second cleaning pipeline 52, so that the compressed air enters the discharge pipeline 40, so that the raw materials in the discharge pipeline 40 are pushed out and flow to the second return pipeline 54, and then flow out from the second material recovery pipeline 82 through the fourth reversing valve 86, and then the cleaning liquid is introduced into the second cleaning pipeline 52 for cleaning. In this way, the recovery of the raw materials can be realized, unnecessary waste can be reduced, and the production cost can be reduced.

[0039] In other embodiments, if the viscosity of the delivered liquid raw material is too large, the residual raw materials in the discharge pipeline 40 cannot be pushed out by compressed air. In this case, water can be introduced into the second auxiliary pipeline 81, and then the water enters the discharge pipeline 40 through the second cleaning pipeline 52, so that the residual raw materials in the discharge pipeline 40 flow out to the second return pipeline 54, and then flow out from the second material recovery pipeline 82 through the action of the fourth reversing valve 86, to realize the recovery of the residual raw materials in the discharge pipeline 40.

[0040] In an embodiment, the second return pipeline 54 is sequentially provided with a second recovery valve 91, a second pipeline sight glass 92 and a second check valve 93 in the flowing direction, and the fourth reversing valve 86 is located between the second recovery valve 91 and the second pipeline sight glass 92. In this way, when the residual raw materials in the discharge pipeline 40 are recovered, the recovered residual raw materials need to be observed to avoid excessive dilution of the raw materials, which can cause the raw materials after subsequent recovery to not meet the requirements. Therefore, in this embodiment, the second pipeline sight glass 92 is arranged on the second return pipeline 54, so that the operator can observe the color of the raw materials through the second pipeline sight glass 92, and then stop the recovery according to the color change.

[0041] In addition, the second recovery valve 91 is used to control the on-off of the second return pipeline 54, so that the second recovery valve 91 can be selectively opened according to the needs to open the second return pipeline 54, to meet different production needs. The second check valve 93 can prevent the fluid flowing into the second return pipeline 54 from flowing backward, that is, when the fluid in the second return pipeline 54 stops flowing or the flowing direction changes, the second check valve 93 can automatically close to prevent the fluid from flowing backward, to avoid damage to the system or unnecessary pressure fluctuation.

[0042] In one embodiment, a third material recovery pipeline 100 is further included, and the third recovery pipeline 55 is sequentially provided with a third recovery valve 111, a fifth switching valve 112, a third pipeline sight glass 113, and a third check valve 114 in the fluid flow direction. One end of the third material recovery pipeline 100 is connected to the fifth switching valve 112. In this way, compressed air or water can be introduced into the material recovery pipeline 30 according to the viscosity of the raw material, so as to push the raw material remaining in the material recovery pipeline 30 to flow to the third recovery pipeline 55, and then flow to the third material recovery pipeline 100 through the action of the fifth switching valve 112, and flow out of the outlet end of the third material recovery pipeline 100, thereby realizing the recovery of the raw material remaining in the material recovery pipeline 30. In addition, the third pipeline sight glass 113 is arranged on the third recovery pipeline 55, so that the operator can observe the color of the raw material through the third pipeline sight glass 113, and thus can stop the recovery according to the change of the color.

[0043] The third recovery valve 111 is used to control the opening and closing of the third recovery pipeline 55, and thus the third recovery valve 111 can be selectively opened according to the needs of different production requirements. The third check valve 114 can prevent the fluid entering the third recovery pipeline 55 from flowing backward, that is, when the fluid in the third recovery pipeline 55 stops flowing or the flow direction changes, the third check valve 114 can automatically close to prevent the fluid from flowing backward, thereby avoiding damage to the system or unnecessary pressure fluctuations.

[0044] In one embodiment, the material recovery pipeline 30 includes a material recovery main pipeline 31 and a material recovery branch pipeline 32. One end of the material recovery branch pipeline 32 is connected to the material recovery main pipeline 31, and the other end is in communication with the raw material storage tank 10. The material recovery main pipeline 31 is provided with a connecting head 20 at one end connected to the tank container vehicle 700. The connecting head 20 is connected to the discharge port of the tank container vehicle 700 through a hose 400, so as to input the raw material in the tank container vehicle 700 into the raw material storage tank 10. The other end of the material recovery main pipeline 31 is in communication with the third recovery pipeline 55. It should be noted that the connecting head 20 and the hose 400 can be connected by screwing, that is, an external thread is arranged at the end of the connecting head 20, and a butt joint having an internal thread is arranged at one end of the hose 400. The internal thread of the butt joint is screwed with the external thread of the connecting head 20, thereby realizing the quick connection of the connecting head 20 and the hose 400. The structure is simple, and the disassembly and assembly are convenient.

[0045] In an embodiment, the first filter 211, the second centrifugal pump 212, the fourth check valve 216, the second filter 213, the first control valve 214 and the fourth pipe sight glass 215 are sequentially arranged on the flow direction of the material collecting main pipe 31, and the first valve group 217 is arranged on the material collecting branch pipe 32. It should be noted that the second centrifugal pump 212 is used to provide the power required for pumping the liquid raw material in the tank container vehicle 700 into the raw material storage tank 10, and the impurities mixed in the raw material can be filtered by the filtering of the first filter 211 and the second filter 213, so as to ensure the purity of the liquid raw material. In addition, the fourth check valve 216 can prevent the fluid entering the material collecting main pipe 31 from flowing backward, that is, when the fluid in the material collecting main pipe 31 stops flowing or the flowing direction changes, the fourth check valve 216 can be automatically closed to prevent the fluid from flowing backward, so as to avoid damaging the system or unnecessary pressure fluctuation.

[0046] In an embodiment, the material discharging pipeline 40 includes the material discharging main pipe 41, the first material discharging branch pipe 42 and the second material discharging branch pipe 43. One end of the first material discharging branch pipe 42 is connected with the material discharging main pipe 41, and the other end is communicated with the raw material storage tank. One end of the material discharging main pipe 41 is communicated with the second backflow pipeline 54, and the other end is connected with the second cleaning pipeline 52. One end of the second material discharging branch pipe 43 is connected with the material discharging main pipe 41, and the other end is used to be connected with the processing equipment.

[0047] In an embodiment, the second control valve 311, the third filter 312, the third centrifugal pump 313, the fifth check valve 314 and the third control valve 315 are sequentially arranged on the flow direction of the material discharging main pipe 41. The second valve group 317 is arranged on the first material discharging branch pipe 42, and the third valve group 316 is arranged on the second material discharging branch pipe 43. It should be noted that the third centrifugal pump 313 is used to provide the power required for pumping the liquid raw material in the raw material storage tank 10 into the processing equipment, and the impurities mixed in the raw material can be filtered by the filtering of the third filter 312, so as to ensure the purity of the liquid raw material. In addition, the fifth check valve 314 can prevent the fluid entering the material discharging main pipe 41 from flowing backward, that is, when the fluid in the material discharging main pipe 41 stops flowing or the flowing direction changes, the fifth check valve 314 can be automatically closed to prevent the fluid from flowing backward, so as to avoid damaging the system or unnecessary pressure fluctuation.

[0048] The above description is only the preferred embodiment of the present application, and it should be noted that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, and these improvements and substitutions should be considered as the protection scope of the present application.

Claims

1. A liquid feedstock delivery system characterized by, include: Raw material storage tanks; The receiving pipeline is used to transport the raw materials in the tank container truck to the raw material storage tank. The discharge pipeline is used to transport the raw materials in the raw material storage tank to the processing equipment for processing. The cleaning unit includes a cleaning fluid storage tank, a first cleaning pipeline, and a second cleaning pipeline. The first cleaning pipeline connects the cleaning fluid storage tank and the raw material storage tank to allow the cleaning fluid to be introduced into the raw material storage tank for cleaning. The second cleaning pipeline connects the cleaning fluid storage tank and the discharge pipeline to allow the cleaning fluid to be introduced into the discharge pipeline for cleaning.

2. The liquid feed delivery system of claim 1, wherein, The cleaning unit further includes a first return pipeline, a second return pipeline, and a third return pipeline. The first return pipeline connects the cleaning fluid storage tank and the raw material storage tank to recover the cleaned liquid in the raw material storage tank to the cleaning fluid storage tank. The second return pipeline connects the discharge pipeline and the cleaning fluid storage tank to recover the cleaned liquid in the discharge pipeline to the cleaning fluid storage tank. The third return pipeline connects the cleaning fluid storage tank and the receiving pipeline to recover the cleaned liquid in the receiving pipeline to the cleaning storage tank.

3. The liquid feed delivery system of claim 2, wherein, It also includes a first auxiliary pipeline and a first material recovery pipeline. A first reversing valve and a first cleaning valve are sequentially provided on the first cleaning pipeline along the fluid flow direction. One end of the first auxiliary pipeline is connected to the first reversing valve. A first three-way ball valve is provided on the first auxiliary pipeline. A second reversing valve is provided on the first return pipeline. One end of the first material recovery pipeline is connected to the second reversing valve.

4. The liquid feed delivery system of claim 3, wherein, The first return pipeline is provided with a first pipeline sight glass, a first centrifugal pump, a first recovery valve and a first check valve in sequence along the fluid flow direction.

5. The liquid feed delivery system of claim 2, wherein, It also includes a second auxiliary pipe and a second material recovery pipe. A third reversing valve and a second cleaning valve are sequentially provided on the second cleaning pipe along the fluid flow direction. One end of the second auxiliary pipe is connected to the third reversing valve. A second three-way ball valve is provided on the second auxiliary pipe. A fourth reversing valve is provided on the second return pipe. One end of the second material recovery pipe is connected to the fourth reversing valve.

6. The liquid feed delivery system of claim 5, wherein, The second return pipeline is provided with a second recovery valve, a second pipeline sight glass and a second check valve in sequence along the fluid flow direction, and the fourth reversing valve is located between the second recovery valve and the second pipeline sight glass.

7. The liquid feed delivery system of claim 2, wherein It also includes a third material recovery pipeline, wherein the third return pipeline is provided with a third recovery valve, a fifth reversing valve, a third pipeline sight glass and a third check valve in sequence along the fluid flow direction, and one end of the third material recovery pipeline is connected to the fifth reversing valve.

8. The liquid feed delivery system of claim 2, wherein, The receiving pipeline includes a main receiving pipe and a branch receiving pipe. One end of the branch receiving pipe is connected to the main receiving pipe, and the other end is connected to the raw material storage tank. The end of the main receiving pipe that is connected to the tank container truck is provided with a connector. The connector is connected to the outlet of the tank container truck through a hose to input the raw material in the tank container truck into the raw material storage tank. The other end of the main receiving pipe is connected to the third return pipeline.

9. The liquid feed delivery system of claim 8, wherein, The first filter, the second centrifugal pump, the fourth check valve, the second filter, the first control valve and the fourth pipeline sight glass are sequentially arranged on the collecting main pipe in the fluid flow direction.

10. The liquid feed delivery system of claim 2, wherein, The discharge pipeline comprises a discharge main pipe, a first discharge branch pipe and a second discharge branch pipe. One end of the first discharge branch pipe is connected with the discharge main pipe, and the other end is communicated with the raw material storage tank. One end of the discharge main pipe is communicated with the second reflux pipeline, and the other end is connected with the second cleaning pipeline. One end of the second discharge branch pipe is connected with the discharge main pipe, and the other end is used for being connected with the processing equipment. The second control valve, the third filter, the third centrifugal pump, the fifth check valve and the third control valve are sequentially arranged on the discharge main pipe in the fluid flow direction. The second valve group is arranged on the first discharge branch pipe, and the third valve group is arranged on the second discharge branch pipe.

Images