CN113063096B - Individualized thick liquids that satisfy arbitrary switching pipeline supply thick liquid system - Google Patents

Individualized thick liquids that satisfy arbitrary switching pipeline supply thick liquid system Download PDF

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Publication number
CN113063096B
CN113063096B CN202110162146.6A CN202110162146A CN113063096B CN 113063096 B CN113063096 B CN 113063096B CN 202110162146 A CN202110162146 A CN 202110162146A CN 113063096 B CN113063096 B CN 113063096B
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Prior art keywords
slurry
valve
pump
assembly line
return
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CN113063096A (en
Inventor
徐兴华
齐潜龙
张新超
龚俊
王肖闯
付巧杰
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Yongfa Henan Moulding Technology Development Co ltd
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Yongfa Henan Moulding Technology Development Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/14—Conveying liquids or viscous products by pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/08—Pipe-line systems for liquids or viscous products
    • F17D1/088—Pipe-line systems for liquids or viscous products for solids or suspensions of solids in liquids, e.g. slurries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations

Abstract

The invention discloses a personalized slurry supply system meeting the requirement of switching pipelines at will, which comprises: the assembly line A, the assembly line B and the slurry supply valve; the slurry supply device comprises a slurry supply pipeline, a slurry supply valve and a slurry supply pipeline, wherein the slurry supply pipeline is arranged on the pipeline B, the pipeline A is communicated with the pipeline B through the circuit breaker, the slurry supply pipeline is arranged between the pipeline A and the pipeline B, the pipeline A is communicated with the pipeline B, and the slurry supply valve is arranged on the slurry supply pipeline. According to the slurry supply system, the slurry supply source of the assembly line B is changed, so that the situations that the slurry supply under an independent slurry supply system is excessive, the utilization rate of the slurry is low, the utilization rate of equipment is reduced and a trolley is pulled by a large horse due to the fact that the starting number of the assembly line A and the assembly line B is reduced in off seasons can be avoided.

Description

Individualized thick liquids that satisfy arbitrary switching pipeline supply thick liquid system
Technical Field
The invention relates to the technical field of pipeline transportation, in particular to an individualized slurry supply system meeting the requirement of switching pipelines at will.
Background
The paper-plastic products are divided into a unit type pulp supply and pulp return production mode in the mass production process, large-batch mass production can be executed, but the influence of production orders is forced to occur in off-season production, the number of running machines is increased or decreased irregularly when the number of the machines is reduced, the machine type is converted, and if the original pulp supply mode is continued, the utilization rate of equipment is reduced, and a phenomenon that a cart is pulled by a large horse occurs; when the number of the operating machines is increased or decreased, the workload of disassembling and assembling the mould on the machines is large, so that the labor cost is increased; and the running-in period of the restarted machine and the mold is long, so that the production yield rate is reduced. Therefore, there is a need for a personalized slurry supply system that satisfies any switching conduit to at least partially solve the problems in the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides an individualized slurry supply system satisfying arbitrary switching of pipelines, comprising: the assembly line A, the assembly line B and the slurry supply valve; the slurry supply device comprises a slurry supply pipeline, a slurry supply valve and a slurry supply pipeline, wherein the slurry supply pipeline is arranged on the pipeline B, the pipeline A is communicated with the pipeline B through the circuit breaker, the slurry supply pipeline is arranged between the pipeline A and the pipeline B, the pipeline A is communicated with the pipeline B, and the slurry supply valve is arranged on the slurry supply pipeline.
Preferably, the assembly line A comprises a slurry feeding tank A, a slurry feeding pump A, a production line A, a slurry return tank A, a slurry return pump A, a slurry return valve A and a one-way valve A; the slurry feeding device comprises a slurry feeding groove A, a slurry feeding pump A, a production line A, a slurry return groove A, a slurry return pump A, a slurry return valve A, a one-way valve A, a slurry feeding pump A, a slurry return pipeline B and a slurry return valve B.
Preferably, the assembly line B comprises a slurry feeding tank B, a slurry feeding pump B, a check valve B, a production line B, a slurry returning tank B, a slurry returning pump B, the circuit breaker and a slurry returning valve B; the slurry feeding tank B is communicated with the slurry feeding pump B, the slurry feeding pump B is communicated with the check valve B, the check valve B is communicated with the production line B, the production line B is communicated with the slurry returning tank B, the slurry returning tank B is communicated with the slurry returning pump B, the slurry returning pump B is communicated with the converter, the converter is communicated with the slurry returning valve B, the slurry returning valve B is communicated with the slurry feeding tank B, the slurry returning valve A is communicated with the slurry returning pump B through the converter, and the slurry feeding pump A is communicated with the production line B through the slurry feeding pipeline.
Preferably, a pulp supply one-way valve is arranged on the pulp supply pipeline, the pulp supply one-way valve is positioned between the pulp supply valve and the B production line, a flow detector is arranged in the A one-way valve, and the circuit breaker, the B pulp return valve, the B pulp feeding groove, the B pulp feeding pump and the pulp supply valve are all electrically connected with the flow detector.
Preferably, the slurry supply system implementing step includes
S1: in a busy season, the assembly line A and the assembly line B adopt independent slurry supply systems, slurry supply valves are closed, a slurry return pump B is communicated with a slurry return valve B through a circuit breaker, and the assembly line A and the assembly line B supply slurry independently;
s2: in a slack season, the slurry supply system is switched manually or automatically, so that the A assembly line and the B assembly line realize integrated slurry supply.
Preferably, the step of supplying pulp in the A pipeline of the step S1 includes
Sa 1: the slurry is continuously stirred in the slurry feeding groove A by a stirring pump to prevent solidification;
sa 2: the slurry is pumped out from the slurry feeding groove A by the slurry feeding pump A and is conveyed to the production line A, and the residual slurry in the production line A flows back to the slurry returning groove A;
sa 3: the slurry in the slurry return groove A can be pumped out by the slurry return pump A, and the pumped slurry flows through the slurry return valve A and the one-way valve A and then flows back to the slurry conveying groove A, so that the slurry supply circulation is completed.
Preferably, the B pipeline pulp supply step in the step S1 comprises
Sb 1: the slurry is continuously stirred by a stirring pump in a slurry feeding groove B to prevent solidification;
sb 2: the slurry is pumped out of the slurry feeding groove B by the slurry feeding pump B, flows through the check valve B and then is conveyed to the production line B, and the residual slurry in the production line B flows back to the slurry returning groove B;
sb 3: slurry in the slurry return groove B can be pumped out by a slurry return pump B, and the pumped slurry reaches a circuit breaker to carry out access selection;
sb 4: at the moment, the converter connects the B slurry return pump and the B slurry return valve, so that the slurry flows through the B slurry return valve from the converter and then flows back to the B slurry feeding tank, and the slurry supply circulation is completed.
Preferably, the step of switching the pipes of the pulp supply system in the step S2 through a manual or automatic mode includes:
s201: closing the slurry feeding pump B, and stopping slurry conveying to the production line B;
s202: b, closing a slurry return valve, and simultaneously closing a stirring pump in the slurry feeding tank B;
s203: the channel between the grout returning pump B and the grout returning valve B is disconnected by the aid of the circuit breaker, and the grout returning pump B is communicated with the grout returning valve A at the same time, so that the grout can flow through the circuit breaker from the grout returning pump B to the grout returning valve A;
and S204, opening the slurry supply valve while the pipeline passage of the converter is changed.
Preferably, the step of integrally feeding the slurry in the A line and the B line in the step S2 includes
Sab 1: the slurry is pumped out of the slurry feeding groove A by the slurry feeding pump A, and the pumped slurry is divided into a path A and a path B;
sab 2: the slurry is conveyed to the production line A in the path A, and the residual slurry in the production line A can flow back to the slurry return groove A;
sab 3: the slurry in the slurry return groove A can be pumped out by the slurry return pump A, and the pumped slurry flows through the slurry return valve A and the check valve A and then flows back to the slurry conveying groove A;
sab 2': the slurry flows through a slurry supply valve and a slurry supply one-way valve on a slurry supply pipeline in the path B and then reaches the production line B, and the residual slurry in the production line B flows back to the slurry return groove B;
sab 3': the slurry in the slurry return groove B can be pumped by the slurry return pump B, the pumped slurry reaches the circuit breaker for channel selection, and the slurry flows through the slurry return valve A from the circuit breaker and then flows back to the slurry feeding groove A.
Preferably, in the automatic mode, the flow detector controls the pipeline switching to satisfy the following formula
First according to
Q＝μA(2P/ρ) 0.5
Wherein Q is the flow rate; mu is a flow coefficient, and is usually between 0.6 and 0.65 related to the shape of the A pulping valve; a is the sectional area of the pipeline; p is the pressure difference before and after passing through the check valve A; ρ is the density of the slurry;
measuring the initial flow value Q of the slurry at the one-way valve A when the assembly line A independently supplies the slurry 1 Then, the flow value Q of the slurry at any moment when the assembly line A independently supplies the slurry is calculated according to the formula of the flow detector i ，
Figure BDA0002935859220000031
Wherein P is i Is the slurry pressure; a. the i Is the cross-sectional area of the slurry flowing through the flow detector; v i The volume of slurry passing through the flow detector at any time; k is the slurry polytropic index, and the elastic modulus of the slurry is negligible;
when the A production line independently supplies the pulp, the flow value of the pulp consumed by the A production line at any moment is
ΔQ i ＝Q-Q i
Therefore, when the A assembly line independently supplies pulp in the automatic mode, if delta Q < delta Q i If the flow detector is used for automatically switching the assembly line A and the assembly line B from the independent slurry supply system to the integrated slurry supply system of the assembly line A and the assembly line B, the excessive slurry is conveyed when the assembly line A and the assembly line B independently supply slurry.
Compared with the prior art, the invention at least comprises the following beneficial effects:
1. the individualized slurry supply system meeting the requirement of arbitrarily switching pipelines changes the slurry supply source of the assembly line B from the original independent slurry supply to the supply of the slurry by the assembly line A, so that the problems that the slurry supply is excessive under the independent slurry supply system and the utilization rate of the slurry is low due to the reduction of the starting number of the assembly line A and the assembly line B in off seasons, the utilization rate of equipment is reduced, and the large horse pulls a trolley are caused can be avoided, and the independent slurry supply system needs to increase and decrease the number of running machines and change the starting type in an irregular time in off seasons, so that the assembly line B is repeatedly started and stopped, the assembly line A and the assembly line B are changed into an integrated slurry supply system in off seasons, the number of machines of each assembly line can be increased and decreased according to the actual production needs, and the slurry conveying system does not need to be repeatedly started and stopped, the production requirement can be met, the labor cost for disassembling and calibrating the machine table and the mould is saved when the slurry supply system of the B assembly line is restarted after being completely shut down, and the problem of reduction of the production yield caused by long-time running-in of a newly started machine table and the mould is also solved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a personalized slurry supply system according to the invention, which satisfies the requirement of arbitrary switching of pipelines.
Fig. 2 is a schematic view of a flow line a in an independent slurry supply system in a personalized slurry supply system satisfying any switching pipeline according to the present invention.
Fig. 3 is a schematic diagram of a B flow line in an independent slurry supply system in a personalized slurry supply system satisfying any switching pipeline according to the present invention.
Fig. 4 is a detailed schematic diagram of the individualized slurry supply system satisfying any switching pipeline according to the present invention.
Fig. 5 is a schematic diagram of a slurry flow direction in an integrated slurry supply system in a personalized slurry supply system satisfying any switching pipeline according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can practice the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 5, the present invention provides an individualized slurry supply system satisfying any switching of pipelines, including: the assembly line A, the assembly line B and the slurry supply valve; the assembly line B is provided with a circuit breaker, the assembly line A is communicated with the assembly line B through the circuit breaker, a slurry supply pipeline is arranged between the assembly line A and the assembly line B and communicates the assembly line A with the assembly line B, and a slurry supply valve is arranged on the slurry supply pipeline.
The working principle of the technical scheme is as follows: in the process of mass production of products in scale, the production line is divided into a unit type pulp supply and return production mode, the production lines are independent from each other, the A production line and the B production line are two independent pulp supply systems in high-demand seasons, but the startup number needs to be reduced when the production is in off-season, and the number of running machine tables needs to be increased or decreased from time to time, the mutually independent pulp supply systems of the A production line and the B production line can be switched into the pulp supply system with the A production line and the B production line integrated at any time through a diverter and a pulp supply pipeline, when the pulp supply system is switched, manual or automatic mode can be adopted for switching, a pulp supply valve on the pulp supply pipeline between the A production line and the B production line is opened during switching, so that the pulp of the A production line can be supplied to the B production line, and simultaneously, the pulp returned by the B production line can be conveyed to the A production line through the diverter, so that the slurry supply for line a and line B all come from line a.
The beneficial effects of the above technical scheme are that: through the design of the structure, the pulp supply source of the B assembly line is changed from the original independent pulp supply to the pulp supply of the A assembly line, so that the problems that the pulp supply is excessive under an independent pulp supply system and the pulp utilization rate is low due to the reduction of the starting number of the A assembly line and the B assembly line in a slack season, and further the equipment utilization rate is reduced to cause the occurrence of a large horse-sized trolley are solved, and the number of running machines and the model of starting are required to be increased or decreased irregularly and the B assembly line is converted in the slack season of the independent pulp supply system, so that the B assembly line is repeatedly started and stopped, the A assembly line and the B assembly line are converted into an integrated pulp supply system in the slack season, the number of machines of each assembly line can be increased or decreased according to the actual production requirement, the pulp conveying system is not required to be repeatedly started and stopped, the production requirement can be met, and the situation that the pulp supply system of the B assembly line is restarted after being completely stopped is avoided, the labor cost for disassembling and calibrating the machine table mold also avoids the problem of reduction of production yield caused by long-time running-in of a newly started machine table and the mold again.
In one embodiment, the A assembly line comprises an A slurry feeding groove, an A slurry feeding pump, an A production line, an A slurry return groove, an A slurry return pump, an A slurry return valve and an A one-way valve; the slurry feeding device comprises a slurry feeding groove A, a slurry feeding pump A, a production line A, a slurry return groove A, a slurry return pump A, a slurry return valve A, a one-way valve A, a slurry feeding pump A, a slurry return pipeline B and a slurry return valve B.
The working principle of the technical scheme is as follows: in the A assembly line, a stirring pump is installed in the A slurry feeding tank and is used for stirring slurry and preventing the slurry from solidifying to influence production, then the slurry is pumped out of the A slurry feeding tank through an A slurry feeding pump and is conveyed to the A assembly line, the slurry in the A assembly line is used for processing paper-plastic products, the unused slurry after the processing of the A assembly line can be collected into the A slurry return tank, the A slurry return pump conveys the slurry in the A slurry return tank back to the A slurry feeding tank through an A slurry return valve and an A one-way valve, the slurry is mixed, stirred and waits for use with the slurry in the A slurry feeding tank, the A one-way valve can prevent the slurry in the A slurry feeding tank from reversely flowing and pouring, meanwhile, the A slurry feeding pump is also communicated with the B assembly line, the slurry in the A slurry feeding tank can be conveyed to the B assembly line through a slurry feeding pipeline through the A slurry feeding pump in slack seasons, and the slurry feeding to the B assembly line is realized, and the circuit breaker is communicated with the A slurry return valve, so that unused slurry in the B assembly line can be drained to the A slurry return valve from the circuit breaker and recycled to the A slurry feeding groove when the A assembly line and the B assembly line are integrally supplied with slurry.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, under independent confession thick liquid system, the A assembly line can send the dressing trough to provide the required thick liquids of A production line through A, and guarantee the production of A production line, and the A check valve can prevent that the thick liquids in the A send the dressing trough from pouring into in the A production line in daily production simultaneously, lead to equipment damage and production loss, and after the transformation of confession thick liquid system, can provide thick liquids for the B assembly line through supplying thick liquid pipeline in the A send the dressing trough, and remaining thick liquids can reach A through the variable-way ware and return to the A and send the dressing trough in the B assembly line, reach the integrative confession thick liquids of A assembly line and B assembly line.
In one embodiment, the B flow line comprises a B slurry feeding tank, a B slurry feeding pump, a B one-way valve, a B production line, a B slurry return tank, a B slurry return pump, the converter and a B slurry return valve; the slurry feeding tank B is communicated with the slurry feeding tank B, the slurry feeding pump B is communicated with the one-way valve B, the one-way valve B is communicated with the production line B, the production line B is communicated with the slurry returning tank B, the slurry returning tank B is communicated with the slurry returning pump B, the slurry returning pump B is communicated with the transformer, the transformer is communicated with the slurry returning valve B, the slurry returning valve B is communicated with the slurry feeding tank B, the slurry returning valve A is communicated with the slurry returning pump B through the transformer, and the slurry feeding pump A is communicated with the production line B through the slurry feeding pipeline.
The working principle of the technical scheme is as follows: in order to realize the integrated slurry supply of the A production line and the B production line, a B one-way valve is additionally arranged between a B slurry supply pump and the B production line, so that the condition that when the A production line and the B production line supply slurry integrally, the slurry entering from a slurry supply pipeline is reversely fed into a B slurry supply tank, and meanwhile, a B slurry return pump is communicated with a B slurry return valve through a converter can be avoided, so that the change of a passage of the B slurry return pump between the A slurry return valve and the B slurry return valve can be realized through the converter, when the B production line supplies slurry independently, the slurry in the B slurry supply tank is pumped out by the B slurry supply pump and is conveyed into the B production line after flowing through the B one-way valve, the residual slurry after the B production line is recycled into the B slurry return tank, and is taken to the converter through the B slurry return pump, when the slurry is supplied independently, the converter communicates the B slurry return pump with the B slurry return valve, so that the slurry can flow back into the B slurry supply tank through the B slurry return valve, and the independent pulp supply of the assembly line B is realized.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, set up B check valve between B back flow valve and B send the dressing trough, can supply thick liquid after A assembly line and B assembly line are integrative, prevent from supplying the thick liquids that the thick liquids pipeline got into to B send the dressing trough in backward flow, the circuit breaker that sets up between B back flow pump and B back flow valve simultaneously can supply thick liquid and integrative when supplying thick liquid independently, when B assembly line is independent supplies thick liquid, the circuit breaker communicates between B back flow pump and B back flow valve, when A assembly line and B assembly line are integrative supplies thick liquid, the circuit breaker can communicate between B back flow pump and the A back flow valve, can supply the arbitrary switching of pipeline when thick liquid system switches through the circuit breaker.
In one embodiment, a pulp supply one-way valve is arranged on the pulp supply pipeline, the pulp supply one-way valve is positioned between the pulp supply valve and the B production line, a flow detector is arranged in the A one-way valve, and the converter, the B pulp return valve, the B pulp feeding tank, the B pulp feeding pump and the pulp supply valve are all electrically connected with the flow detector.
The working principle of the technical scheme is as follows: because the slurry supply pipeline communicates the slurry supply pump A with the production line B, in order to prevent the slurry in the production line B from flowing backwards to the production line A when the independent slurry supply system and the integrated slurry supply system are switched, a slurry supply one-way valve is arranged between the slurry supply valve and the production line B, and a flow detector is arranged inside the one-way valve A and used for monitoring the flow change of the slurry flowing back in the production line A and realizing the automatic switching of the integrated slurry supply of the production line A and the production line B through the flow detector.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, when supplying thick liquid system to switch as an organic whole from independently supplying thick liquid system, no matter be manual switching or automatic switch-over, can prevent when switching that the thick liquids of B assembly line from supplying thick liquid pipeline to flow backward to the A assembly line in, the flow detector that simultaneously sets up in A check valve can be used for monitoring the flow change of the thick liquids of backward flow in the A assembly line to confirm the consumption of thick liquids in the A production line, when the consumption of thick liquids is less than the numerical value of settlement alright with independently supplying thick liquid system automatic switch as an organic whole and supplying thick liquid system.
In one embodiment, the slurry supply system implementing step includes
S1: in a busy season, the assembly line A and the assembly line B adopt independent slurry supply systems, slurry supply valves are closed, a slurry return pump B is communicated with a slurry return valve B by a converter, and the assembly line A and the assembly line B supply slurry independently;
s2: in a slack season, the slurry supply system is switched manually or automatically, so that the A assembly line and the B assembly line realize integrated slurry supply.
The working principle of the technical scheme is as follows: the pulp supply system can perform personalized switching of the pulp supply system according to the use number and the pulp utilization rate of the machines on the A assembly line and the B assembly line, firstly, the A assembly line and the B assembly line need to be started up for production at the same time in a busy season to ensure sufficient yield, the pulp supply system needs to be set as an independent pulp supply system, the pulp supply valve is closed at the moment, the pulp of the A assembly line cannot be shunted into the B assembly line from the pulp supply pipeline, the B pulp return pump is communicated with the B pulp return valve by the aid of the converter, the B assembly line can supply pulp independently, the pulp supply system can be switched in a manual or automatic mode due to the reduction of the number of required machines in a slack season, after the pulp in the A assembly line is switched to the integrated pulp supply system, the pulp in the A assembly line can be simultaneously supplied to the A assembly line and the B assembly line to meet production requirements, and the B pulp return pump is communicated with the A pulp return valve by the converter to ensure circulation of the pulp, at the moment, the production of the B production line cannot be influenced after the B slurry feeding groove is closed.
The beneficial effects of the above technical scheme are that: the switching of the pulp supply system is realized through the pulp supply valve and the pulp converter according to the production requirement in actual production, when the pulp supply valve is closed and the pulp return pump B is communicated with the pulp return valve B through the pulp converter, the pulp supply system is an independent pulp supply system of the assembly line A and the assembly line B, and the assembly line A and the assembly line B can independently operate to ensure production in the independent pulp supply system; when the slurry supply valve is opened and the B slurry return pump and the A slurry return valve are communicated by the converter, the slurry supply system is an integrated slurry supply system of the A assembly line and the B assembly line, the B slurry feeding grooves and other slurry supply equipment of the B assembly line can be shut down at the moment, the number of machines of the B assembly line is increased or decreased according to production needs, slurry supplied by the A slurry feeding grooves can meet the operation supply of the machines of the B assembly line, the integrated slurry supply system is switched in slack seasons, and waste of time, manpower and material resources caused by repeated opening, shutting down, debugging, cleaning and grinding of the B slurry feeding grooves due to increase and decrease of the number of machines of the assembly line can be avoided.
In one embodiment, the step of supplying slurry in the A pipeline of step S1 includes
Sa 1: the slurry is continuously stirred in the slurry feeding groove A by the stirring pump to prevent solidification;
sa 2: the slurry is pumped out of the slurry feeding groove A by the slurry feeding pump A and is conveyed to the production line A, and the residual slurry in the production line A flows back to the slurry returning groove A;
sa 3: and the slurry in the slurry return groove A can be pumped out by the slurry return pump A, and the pumped slurry flows through the slurry return valve A and the check valve A and then flows back to the slurry feeding groove A, so that the slurry supply circulation is completed.
The working principle of the technical scheme is as follows: when the A assembly line supplies slurry independently, the slurry can be continuously stirred by the stirring pump in the A slurry feeding groove to prevent the slurry from being solidified or nodulated, then the slurry is pumped out from the A slurry feeding groove by the A slurry feeding pump and is conveyed to the A assembly line for production, the residual slurry in the A assembly line can be collected in the A slurry returning groove, then the residual slurry is pumped out from the A slurry returning groove by the A slurry returning pump and is conveyed back to the A slurry feeding groove to complete the slurry supply circulation of the A assembly line, the slurry can flow through the A slurry returning valve and the A check valve when the A slurry returning pump conveys the slurry to the A slurry feeding groove, the A slurry returning valve can be closed when equipment is maintained, and the A check valve can prevent the slurry in the A slurry feeding groove from reversely flowing when the residual slurry is conveyed back to the A slurry feeding groove.
The beneficial effects of the above technical scheme are that: when the A assembly line supplies the thick liquid alone, supply the thick liquid valve of supplying on the thick liquid pipeline to close, prevent that the thick liquids of A confession dressing trough from carrying in the B assembly line, the thick liquids of A confession dressing trough supply can guarantee the operation of whole A production line simultaneously to it can make things convenient for the A assembly line to stop the thick liquids supply and carry out routine maintenance to be provided with A back thick liquid valve between A fan-back pump and A confession dressing trough, and the thick liquids that A check valve can prevent in the A confession dressing trough are backward poured against the current simultaneously.
In one embodiment, the step of B-line pulp supply in step S1 includes
Sb 1: the slurry is continuously stirred by a stirring pump in a slurry feeding groove B to prevent solidification;
sb 2: the slurry is pumped out of the slurry feeding groove B by the slurry feeding pump B, the slurry flows through the one-way valve B and is conveyed to the production line B, and the residual slurry in the production line B flows back to the slurry returning groove B;
sb 3: slurry in the slurry return groove B can be pumped out by a slurry return pump B, and the pumped slurry reaches a circuit breaker to carry out access selection;
sb 4: at the moment, the converter connects the B slurry return pump and the B slurry return valve, so that the slurry flows through the B slurry return valve from the converter and then flows back to the B slurry feeding tank, and the slurry supply circulation is completed.
The working principle of the technical scheme is as follows: the slurry is continuously stirred by the stirring pump in the slurry feeding tank B to prevent solidification and nodulation, meanwhile, the slurry is pumped out of the slurry feeding tank B by the slurry feeding pump B, the slurry is conveyed to the production line B after flowing through the one-way valve B, the residual slurry in the B production line flows back to the B slurry return tank, the slurry in the B slurry return tank is pumped out by the B slurry return pump, the pumped slurry is conveyed along a path selected by the diverter when reaching the diverter, because the diverter connects the B slurry return pump and the B slurry return valve, therefore, the slurry flows through the slurry return valve B from the converter and then flows back to the slurry feeding tank B to complete the slurry supply circulation, meanwhile, the one-way valve B is arranged in front of the production line B, so that the situation that slurry conveyed in a slurry supply pipeline reversely flows into the slurry conveying groove B after the slurry supply system is switched from the independent slurry supply system to the integrated slurry supply system can be prevented.
The beneficial effects of the above technical scheme are that: when the B production line supplies pulp independently, the pulp supply valve on the pulp supply pipeline is closed, the path of the B pulp return pump is communicated with the path of the B pulp return valve by the aid of the converter, then the B production line can supply pulp independently, and the B check valve is arranged between the B pulp supply pump and the B production line, so that the situation that when the pulp supply system is switched to the integrated pulp supply system from the independent pulp supply system, the pulp conveyed from the pulp supply pipeline reversely flows into the B pulp supply groove can be prevented.
In one embodiment, the step of switching the pipes of the pulp supply system in step S2 through a manual or automatic mode includes:
s201: closing the slurry feeding pump B, and stopping slurry conveying to the production line B;
s202: b, closing a slurry return valve, and simultaneously closing a stirring pump in the slurry feeding tank B;
s203: the channel between the grout returning pump B and the grout returning valve B is disconnected by the aid of the circuit breaker, and the grout returning pump B is communicated with the grout returning valve A at the same time, so that the grout can flow through the circuit breaker from the grout returning pump B to the grout returning valve A;
and S204, opening the slurry supply valve while the pipeline passage of the converter is changed.
The working principle of the technical scheme is as follows: the switching of the slurry supply system can be divided into two types, one type is manual switching, the other type is automatic switching, the automatic switching can enable a slurry supply pump B, a slurry return valve B and a stirring pump in a slurry supply tank B to be closed simultaneously, the slurry supply valve is opened while the slurry supply valve is closed, the transmission pipelines of the converter are switched, the manual mode needs to be closed sequentially relative to the automatic mode, the slurry supply pump B is firstly closed, the slurry supply pump B stops conveying slurry to a production line B, the slurry return valve B is closed, the stirring pump in the slurry supply tank B is closed simultaneously, then a passage between the slurry return pump B and the slurry return valve B is disconnected and switched to a passage between the slurry return pump B and the slurry return valve A, and the slurry supply valve is opened while the pipeline passage of the converter is changed.
The beneficial effects of the above technical scheme are as follows: the automatic mode can realize synchronous operation of all links, production of the A production line and the B production line can be not suspended, the seamless switching effect is achieved, the pulp supply system can be changed under the condition of no shutdown, the B production line needs to be stopped firstly in the manual mode, and the situation that pulp is continuously supplied in the process of switching the pulp supply system and the pulp overflows in the B production line and the B pulp conveying groove is avoided.
In one embodiment, the step of integrally feeding the slurry in the A pipeline and the B pipeline in the step S2 comprises
Sab 1: the slurry is pumped out of the slurry feeding groove A by the slurry feeding pump A, and the pumped slurry is divided into a path A and a path B;
sab 2: the slurry is conveyed to the production line A in the path A, and the residual slurry in the production line A can flow back to the slurry return groove A;
sab 3: the slurry in the slurry return groove A can be pumped out by the slurry return pump A, and the pumped slurry flows through the slurry return valve A and the check valve A and then flows back to the slurry conveying groove A;
sab 2': the slurry flows through a slurry supply valve and a slurry supply one-way valve on a slurry supply pipeline in the path B and then reaches the production line B, and the residual slurry in the production line B flows back to the slurry return groove B;
sab 3': the slurry in the slurry return groove B can be pumped out by the slurry return pump B, the pumped slurry reaches the circuit breaker for passage selection, and the slurry can flow through the slurry return valve A from the circuit breaker and then flow back to the slurry feeding groove A because the circuit breaker communicates the slurry return pump B with the slurry return valve A.
The working principle of the technical scheme is as follows: after the slurry supply system is switched to the integrated slurry supply system, the stirring pump of the slurry supply tank B and the slurry supply pump B are closed, so that all slurry supply of a production line B is provided by the slurry supply tank A, under the integrated slurry supply system, slurry in the slurry supply tank A is pumped by the slurry supply pump A and then is divided into a path A and a path B for simultaneous slurry supply, the slurry in the path A can be conveyed along a pipeline of a production line A, the slurry in the path B flows through the slurry supply valve and then flows through the slurry supply one-way valve, the slurry supply one-way valve can prevent the slurry of the production line B from being poured into the production line A in a manual mode, then the slurry is produced and consumed in the production line B, and the residual slurry can be collected in the slurry return tank B, is pumped by the slurry return pump B in the slurry return tank B, is conveyed to the slurry converter, reaches the slurry supply valve A through the converter, and finally flows back into the slurry supply tank A to complete supply circulation of the path B.
The beneficial effects of the above technical scheme are as follows: can prevent through supplying thick liquid check valve that the thick liquids of B assembly line from flowing backward to in the A assembly line when manual switching, and can not influence the operation of whole A assembly line after switching as an organic whole confession thick liquid system, because the thick liquids consumption of A production line and B production line reduces when taking off season, so send the thick liquids of dressing trough supply to a to divide partly to be used for supplying the B production line, thereby can make B send equipment such as dressing trough to shut down, prevent that the thick liquids supply is surplus to cause the energy extravagant, can also avoid B to send equipment such as dressing trough to turn on repeatedly to lead to debugging and break-in time overlength and yields low grade problem to appear simultaneously.
In one embodiment, in the automatic mode, the flow detector controls the pipeline switching to satisfy the following formula
First according to
Q＝μA(2P/ρ) 0.5
Wherein Q is the flow rate; mu is a flow coefficient, and is usually between 0.6 and 0.65 related to the shape of the A pulping valve; a is the sectional area of the pipeline; p is the pressure difference before and after passing through the check valve A; rho is the density of the slurry;
measuring the initial flow value Q of the slurry at the one-way valve A when the assembly line A independently supplies the slurry 1 Then calculating the flow value Q of the slurry at any moment when the A assembly line independently supplies the slurry according to the formula of the flow detector i ，
Figure BDA0002935859220000101
Wherein P is i Is the slurry pressure; a. the i Is the cross-sectional area of the slurry flowing through the flow detector; v i The volume of slurry passing through the flow detector at any time; k is the slurry polytropic index, and the elastic modulus of the slurry is negligible;
when the A production line independently supplies the pulp, the flow value of the pulp consumed by the A production line at any moment is
ΔQ i ＝Q-Q i
Therefore, when the A assembly line independently supplies pulp in the automatic mode, if delta Q < delta Q i Then prove thatWhen the A assembly line and the B assembly line independently supply pulp, pulp is conveyed excessively, and the flow detector can automatically switch the A assembly line and the B assembly line from the independent pulp supply system to the A assembly line and B assembly line integrated pulp supply system.
The working principle of the technical scheme is as follows: firstly, the rated pulp supply flow Q of the A one-way valve is calculated according to a formula, and then the pulp supply flow Q of the A one-way valve at any time is measured when the pulp supply system is independent i Q and Q i The difference value is the slurry consumption flow of the A assembly line under the independent slurry supply system and is recorded as delta Q i And then detecting the flow of the check valve A at any time, and when the real-time consumed flow delta Q is far smaller than the delta Q i At this moment, the number of machines in the production line A is reduced, and the slurry supply system can be automatically switched into an integrated slurry supply system in an automatic mode, so that the utilization rate of equipment is increased, and the loss is reduced.
The beneficial effects of the above technical scheme are that: through the design of above-mentioned structure, can judge whether need to change the confession thick liquid system automatically through flow detector for this confession thick liquid system is more individualized more intelligent, has avoided simultaneously supplying thick liquid surplus to cause the energy extravagant, can select whether to transfer back manual mode according to the condition after automatic switch-over, after confirming entering the slack season alright clear up the maintenance with the board to the B assembly line, can only carry out routine maintenance to equipment such as B confession dressing trough earlier when interim order volume reduces.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (6)

1. An individualized slurry supply system for satisfying arbitrary pipe switching, comprising: the assembly line A, the assembly line B and the slurry supply valve; the assembly line B is provided with a circuit breaker, the assembly line A is communicated with the assembly line B through the circuit breaker, a slurry supply pipeline is arranged between the assembly line A and the assembly line B and is communicated with the assembly line A and the assembly line B, and a slurry supply valve is arranged on the slurry supply pipeline;
the assembly line A comprises a slurry feeding groove A, a slurry feeding pump A, a production line A, a slurry returning groove A, a slurry returning pump A, a slurry returning valve A and a one-way valve A; the slurry feeding groove A is communicated with the slurry feeding pump A, the slurry feeding pump A is communicated with the production line A, the production line A is communicated with the slurry return groove A, the slurry return groove A is communicated with the slurry return pump A, the slurry return pump A is communicated with the slurry return valve A, the slurry return valve A is communicated with the check valve A, the check valve A is communicated with the slurry feeding groove A, the slurry feeding pump A is communicated with the production line B through the slurry feeding pipeline, and the slurry return valve A is communicated with the converter;
the assembly line B comprises a slurry feeding tank B, a slurry feeding pump B, a check valve B, a production line B, a slurry return tank B, a slurry return pump B, the circuit breaker and a slurry return valve B; the slurry feeding tank B is communicated with the slurry feeding tank B, the slurry feeding pump B is communicated with the one-way valve B, the one-way valve B is communicated with the production line B, the production line B is communicated with the slurry return tank B, the slurry return tank B is communicated with the slurry return pump B, the slurry return pump B is communicated with the transformer, the transformer is communicated with the slurry return valve B, the slurry return valve B is communicated with the slurry feeding tank B, the slurry return valve A is communicated with the slurry return pump B through the transformer, and the slurry feeding pump A is communicated with the production line B through the slurry supply pipeline;
the slurry supply pipeline is provided with a slurry supply one-way valve, the slurry supply one-way valve is positioned between the slurry supply valve and the B production line, the A one-way valve is internally provided with a flow detector, and the converter, the B slurry return valve, the B slurry feeding groove, the B slurry feeding pump and the slurry supply valve are all electrically connected with the flow detector;
the slurry supply system comprises the implementation steps of
S1: in a busy season, the assembly line A and the assembly line B adopt independent slurry supply systems, slurry supply valves are closed, a slurry return pump B is communicated with a slurry return valve B through a circuit breaker, and the assembly line A and the assembly line B supply slurry independently;
s2: in a slack season, the slurry supply system is switched manually or automatically, so that the A assembly line and the B assembly line realize integrated slurry supply.
2. The system of claim 1, wherein the step of supplying slurry in the pipeline A in the step S1 comprises
Sa 1: the slurry is continuously stirred in the slurry feeding groove A by the stirring pump to prevent solidification;
sa 2: the slurry is pumped out of the slurry feeding groove A by the slurry feeding pump A and is conveyed to the production line A, and the residual slurry in the production line A flows back to the slurry returning groove A;
sa 3: and the slurry in the slurry return groove A can be pumped out by the slurry return pump A, and the pumped slurry flows through the slurry return valve A and the check valve A and then flows back to the slurry feeding groove A, so that the slurry supply circulation is completed.
3. The system of claim 1, wherein the B-line pulp supply step in the step S1 comprises
Sb 1: the slurry is continuously stirred by a stirring pump in a slurry feeding groove B to prevent solidification;
sb 2: the slurry is pumped out of the slurry feeding groove B by the slurry feeding pump B, the slurry flows through the one-way valve B and is conveyed to the production line B, and the residual slurry in the production line B flows back to the slurry returning groove B;
sb 3: slurry in the slurry return groove B can be pumped out by a slurry return pump B, and the pumped slurry reaches a circuit breaker to carry out access selection;
sb 4: at the moment, the converter connects the B slurry return pump and the B slurry return valve, so that the slurry flows through the B slurry return valve from the converter and then flows back to the B slurry feeding tank, and the slurry supply circulation is completed.
4. The system of claim 1, wherein the step of switching the pipes of the slurry supply system in step S2 in manual or automatic mode comprises:
s201: closing the slurry feeding pump B, and stopping slurry conveying to the production line B;
s202: b, closing a slurry return valve, and simultaneously closing a stirring pump in the slurry feeding tank B;
s203: the channel between the grout returning pump B and the grout returning valve B is disconnected by the aid of the circuit breaker, and the grout returning pump B is communicated with the grout returning valve A at the same time, so that the grout can flow through the circuit breaker from the grout returning pump B to the grout returning valve A;
and S204, opening the slurry supply valve while the pipeline passage of the converter is changed.
5. The system of claim 1, wherein the step of supplying slurry to the A line and the B line in the step S2 comprises
Sab 1: the slurry is pumped out of the slurry feeding groove A by the slurry feeding pump A, and the pumped slurry is divided into a path A and a path B;
sab 2: the slurry is conveyed to the production line A in the path A, and the residual slurry in the production line A can flow back to the slurry return groove A;
sab 3: the slurry in the slurry return groove A can be pumped out by the slurry return pump A, and the pumped slurry flows through the slurry return valve A and the check valve A and then flows back to the slurry conveying groove A;
sab 2': the slurry flows through a slurry supply valve and a slurry supply one-way valve on a slurry supply pipeline in the path B and then reaches a production line B, and the residual slurry in the production line B flows back to a slurry return groove B;
sab 3': the slurry in the slurry return groove B can be pumped out by the slurry return pump B, the pumped slurry reaches the circuit breaker for passage selection, and the slurry can flow through the slurry return valve A from the circuit breaker and then flow back to the slurry feeding groove A because the circuit breaker communicates the slurry return pump B with the slurry return valve A.
6. The system of claim 1, wherein in the automatic mode, the flow detector controls the pipeline switching to satisfy the following formula
First according to
Figure 567972DEST_PATH_IMAGE001
Wherein Q is the flow rate; mu is a flow coefficient, and is usually between 0.6 and 0.65 related to the shape of the A pulping valve; a is the sectional area of the pipeline; p is the pressure difference before and after passing through the check valve A;
Figure 794554DEST_PATH_IMAGE002
is the density of the slurry;
measuring the initial flow value of the slurry at the one-way valve A when the assembly line A independently supplies the slurry
Figure 567338DEST_PATH_IMAGE003
Then, the flow value of the slurry at any moment when the assembly line A independently supplies the slurry is calculated according to the formula of the flow detector
Figure 373620DEST_PATH_IMAGE004
，
Figure 49714DEST_PATH_IMAGE005
Wherein
Figure 119301DEST_PATH_IMAGE006
Is the slurry pressure;
Figure 379381DEST_PATH_IMAGE007
is the cross-sectional area of the slurry flowing through the flow detector;
Figure 989354DEST_PATH_IMAGE008
the volume of slurry passing through the flow detector at any time; k is the slurry polytropic index, and the elastic modulus of the slurry is negligible;
when the A production line independently supplies the pulp, the flow value of the pulp consumed by the A production line at any moment is
Figure 18490DEST_PATH_IMAGE009
So when the A assembly line independently supplies pulp in the automatic mode, if
Figure 321296DEST_PATH_IMAGE010
And the flow detector can automatically switch the A assembly line and the B assembly line from the independent slurry supply system to the A assembly line and the B assembly line integrated slurry supply system when the slurry is transported excessively when the A assembly line and the B assembly line independently supply slurry.
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JPS6396400A (en) * 1986-10-08 1988-04-27 Nkk Corp Transportation method for slurry
JP4599733B2 (en) * 2001-03-09 2010-12-15 Ｊｆｅエンジニアリング株式会社 Hydrate slurry production equipment
CN201447644U (en) * 2009-05-06 2010-05-05 关泽殷 Telescopic pipeline device of paper pulp model full-automatic forming machine
CN104019365B (en) * 2014-06-12 2016-06-15 云南大红山管道有限公司 A kind of multi stage pumping station slurry pipeline multi-line induction system and method
CN208928033U (en) * 2018-08-15 2019-06-04 英正辉环保材料张家口有限公司 A kind of paper pulp agitating device
CN110594585A (en) * 2019-08-28 2019-12-20 云南大红山管道有限公司 Material conveying and switching system with double conveying pipelines
CN110848573B (en) * 2019-11-14 2021-06-18 云南大红山管道有限公司 Double-line intercommunicated stirring tank of pipeline conveying pump station and control method thereof
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