CN111993599B - Full-automatic multi-channel slurry preparation and delivery system and process - Google Patents

Abstract

The application relates to the technical field of sending grout of geology prevention of seepage processing, specifically discloses a full-automatic multichannel system of sending thick liquid, by the main control unit, with main control unit communication connection and raw materials conveying mechanism, magma preparation mechanism and the magma conveying mechanism that communicate in proper order constitute, simultaneously, still provide one kind and send thick liquid system. The system and the process provided by the invention can realize automation in ash conveying, primary pulp preparation and conveying, avoid manual intervention and improve the pulp preparation and conveying efficiency of the system.

Description

Full-automatic multi-channel slurry preparation and delivery system and process

Technical Field

The invention relates to the field of water conservancy and hydropower foundation treatment instrument systems, in particular to the field of infrastructure grouting slurry conveying systems and processes, and particularly relates to a full-automatic multi-channel slurry preparation and conveying system and process.

Background

In the foundation treatment construction type of modern water conservancy and hydropower, foundation grouting engineering occupies a large proportion. The grouting engineering construction process can be roughly divided into two procedures of drilling and grouting, and particularly comprises the following main procedures: preparation of slurry, slurry storage, slurry transportation, secondary slurry preparation, slurry injection into the stratum and quality control in the processes.

With the higher requirements of the market on the foundation treatment construction quality and the control precision, the existing related equipment can not meet the modern construction requirements. Most of the existing slurry conveying equipment is simple and crude, has no sensor for detecting slurry density and flow, and the operation mode depends on manual operation, so that the construction requirements can not be met, and the existing slurry conveying equipment has the following defects:

A. the existing slurry conveying equipment has no slurry quality detection means, and the quality (slurry density) of the slurry cannot be ensured. B. The existing pulp feeding equipment has no measuring means of pulp amount, can not realize distribution according to needs, is easy to cause more or less feeding, can overflow when more feeding is carried out, and causes pulp amount waste and environmental pollution; the less feeding can not meet the requirement of the grouting machine set for using the grout. C. The existing slurry feeding equipment has no automatic pipeline flushing function, and the pipeline is easily blocked due to the attachment and drying of the slurry.

The existing pulp feeding equipment has no automatic cooperation function with the previous procedure and the subsequent procedure, and is easy to cause work nest or wrong operation only by means of manual communication. Due to the control of cost and geographical environmental factors of a construction site, a slurry feeding process is that one slurry feeding pump is usually responsible for slurry feeding of a plurality of slurry distribution machine sets, when one machine set sends a slurry feeding request through an interphone, an operator starts to manually feed slurry to the corresponding machine set after receiving a signal, and the machine sets are switched back and forth, sometimes the slurry is mistakenly fed, and the slurry is wasted. This control is essentially a semi-mechanized level of operation. And the communication in one time delays the slurry conveying time, consumes a large amount of manpower and physical strength and cannot efficiently finish the slurry conveying.

At present, companies on the market have already proposed the idea of automatic slurry feeding, but no specific description and related equipment is provided for how to realize the automatic slurry feeding from the integration and modularization perspective by integrating various existing sensors.

In summary, under the condition of analyzing the defects of the existing equipment, an automatic slurry conveying system is researched, and the purpose is to solve the slurry conveying problem, realize full automation of the slurry conveying system, improve the slurry conveying quality and promote the automation degree of basic processing construction equipment.

Disclosure of Invention

The automatic slurry feeding device aims at solving the problems of low slurry feeding precision and low efficiency caused by low automation degree in the slurry feeding process in the prior art. To the deficiency that prior art exists, the application provides a full-automatic multichannel system of sending thick liquid and send thick liquid technology, can be pertinence solve above-mentioned existing technical problem, reach following technological effect:

1. the system can realize automatic operation from ash conveying, primary pulp preparation and conveying, avoids manual intervention, and improves system pulp conveying efficiency.

2. The density of the slurry sent by the slurry sending system is detected firstly and then received, so that the density of the slurry sent by the system is ensured to meet the requirement of preset slurry parameters, and the problem of construction quality caused by the fact that unqualified raw slurry sent by a slurry making system participates in a grouting process is fundamentally avoided.

3. The one-to-many accurate slurry feeding is realized by adopting the slurry feeding valve group, and the system is coordinated and controlled, so that the manual butt joint, intervention and feedback in the traditional slurry feeding process are avoided, and the slurry feeding efficiency is improved.

4. Set up and wash the unit, the system can automated inspection water tank water level carry out the moisturizing, washes, has avoided the thick liquid to remain the pipeline jam problem that leads to, simultaneously, has also ensured the reliability of follow-up thick liquid density of sending thick liquid.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

a full-automatic multi-channel pulp making and feeding system comprises a main control unit, a raw material conveying mechanism, a raw pulp preparation mechanism and a raw pulp conveying mechanism which are communicated with the main control unit in sequence,

the raw material conveying mechanism comprises a cement bin, the bottom of the cement bin is arranged in a converging manner from top to bottom, a discharge bin used for being communicated with a third screw conveyor is arranged at the bottom of the cement bin, and a discharge hole is formed in the free end of the third screw conveyor; the raw material conveying mechanism is used for automatically conveying the ash material to the raw stock preparation mechanism for preparing the raw stock.

The primary pulp preparation mechanism comprises a feeding port communicated with the discharging port, a pulp making barrel, a primary pulp barrel and a second pump for conveying primary pulp, wherein the pulp making barrel, the primary pulp barrel and the second pump are sequentially communicated with the feeding port; the primary pulp preparation mechanism is used for pulping ash and water according to a preset proportion of the main control unit, is an upstream mechanism of the primary pulp conveying mechanism, and is also the only mechanism for obtaining qualified primary pulp.

The raw stock conveying mechanism comprises a stock inlet unit communicated with the raw stock port, a stock storage unit used for temporarily storing the raw stock conveyed by the stock inlet unit, a stock conveying unit used for conveying the raw stock in the stock storage unit to the stock distribution station, and a flushing unit used for flushing residual raw stock in the stock conveying pipe;

the pulp inlet unit comprises a pulp inlet pipe for communicating with the pulping system, a densimeter for detecting the density of the primary pulp, a three-way valve for respectively communicating the densimeter with the pulp storage barrel, and a pulp discharge pipe for discharging unqualified primary pulp; the slurry feeding unit comprises a slurry feeding pipe communicated with the bottom of the slurry storage barrel, a slurry feeding valve, a flow meter, a slurry feeding pump and a slurry feeding valve group, wherein the slurry feeding valve, the flow meter and the slurry feeding pump are sequentially arranged on the slurry feeding pipe in a slurry feeding direction in an airtight manner, and the slurry feeding valve group is used for being communicated with the slurry distribution station through a pipeline; the flushing unit comprises a first water tank and a flushing pipe, wherein the first water tank and the flushing pipe are used for storing water, one end of the flushing pipe is communicated with the first water tank, the other end of the flushing pipe is provided with a first branch pipe and a second branch pipe which are communicated with each other, the first branch pipe is provided with a flushing valve, the free end of the flushing valve is communicated with a slurry feeding pipe between the slurry feeding valve and the flowmeter, and the free end of the second branch pipe is provided with a water replenishing valve.

Preferably, the raw material conveying mechanism further comprises a first screw conveyor and a second screw conveyor which are coaxially arranged along the length direction of the cement bin and are respectively driven by a second driver and a first driver; the dust remover also comprises a divider arranged in the cement bin and used for shielding the first screw conveyor and the second screw conveyor at intervals, and a circulating dust remover arranged on the outer side wall of the cement bin; and the arch breaker is arranged on the lower side wall of the cement bin and positioned between two adjacent dividers, and the arch breaker obtains high-pressure gas and discharges high-speed airflow through communicating a supercharger.

Preferably, the primary pulp preparation mechanism further comprises a second water tank communicated with the pulping barrel through a clean water pipe provided with a valve; the bottom of the pulping barrel at the inlet is communicated with a first pump for circularly pulping, and the outlet of the first pump is communicated with the side wall of the pulping barrel through a pulp return pipe with a densimeter; the outlet of the first pump is also communicated with the raw pulp barrel through a raw pulp pipe with a raw pulp valve, and the raw pulp barrel is provided with a raw pulp stirrer; a plurality of weighing sensors for supporting the pulping barrel are arranged below the pulping barrel.

As an optimized design scheme for the virgin pulp conveying mechanism, the virgin pulp storage unit further comprises a stirring device which is arranged on the pulp storage barrel and used for keeping the homogeneity of the virgin pulp, wherein the stirring device comprises a driver, a speed reducer and a stirrer, the driver is in driving connection with the stirring device, and the stirrer penetrates through the top of the pulp storage barrel and extends to the bottom of the pulp storage barrel; the agitator has and stores up the interior bottom of thick liquid bucket and the contact of inside wall and is used for scraping off the doctor-bar mechanism that adheres to the magma.

Furthermore, install on the storage thick liquid bucket with main control unit communication connection and be used for detecting the supersound level sensor of the interior magma liquid level of storage thick liquid bucket.

Preferably, an upper water level sensor and a lower water level sensor which are respectively used for detecting the maximum value and the minimum value of the water level are arranged in the first water tank; the first water tank is arranged at the top of the system frame, and a mounting hole for accommodating the end head of the water inlet end of the flushing pipe is formed in the position, close to the bottom, of a longitudinal supporting upright column contained in the system frame; the system frame comprises longitudinal supporting columns and horizontal cross beams which are transversely and longitudinally arranged, and a box skin or a box side wall which can be opened and closed is arranged between any adjacent or oppositely arranged longitudinal supporting column and horizontal cross beam.

Preferably, the box side wall is arranged between two adjacent longitudinal support columns, the box side wall is composed of two horizontally hinged side wall units, and two ends of the hinged opposite side of the side wall unit close to one side of the top of the system frame are hinged with the two adjacent longitudinal support columns; two ends of the hinged opposite side of the side wall unit close to one side of the bottom of the system frame are in sliding clamping connection with the two adjacent longitudinal supporting upright columns; and a bolt mechanism for fixing the side wall of the box in a closed or opened state is also arranged on any side wall unit.

Preferably, the raw pulp conveying mechanism further comprises an air compressor, and the three-way valve, the pulp feeding valve group, the flushing valve and the water replenishing valve are all pneumatic control valves driven by the air compressor; the slurry feeding valve group comprises a plurality of pneumatic control valves which are communicated with the slurry distribution station in parallel.

The invention also provides a pulp conveying process which is realized by adopting the multi-channel pulp conveying system and specifically comprises the following steps:

s100, storing and conveying ash: the main control unit acquires whether the ash reserve in the cement bin reaches a preset lower limit: if the lower limit is reached, performing step S110, and if the lower limit is not reached, performing step S200;

step S110, the raw material conveying mechanism sends an ash adding request to the main control unit, sends an alarm and adds ash to the cement bin until the ash storage exceeds a system preset lower limit and is lower than a system preset upper limit, and the alarm is stopped and ready;

s200, preparing and storing primary pulp, wherein a main control unit sends an opening instruction to a valve on a clean water pipe, so that clean water in a second water tank enters a pulping barrel until the weight of the pulping barrel is increased to reach a preset clean water weight value of a system, and the pulping barrel stops;

step S210, the main control unit sends an ash conveying instruction to a third screw conveyor, and the third screw conveyor conveys ash at the bottom of the cement bin into a pulping barrel until the weight of the ash reaches a preset ash weight value of the system;

step S220, circularly pulping by using a pulping barrel, and executing the step S300 if a densimeter arranged at the outlet of a first pump detects that the density of primary pulp meets a preset value of the system; if the density is not in accordance with the preset value of the system, continuing pulping, and respectively executing the step S221 or the step S222 according to the lower density or the higher density;

step S221, adding the ash once at intervals of 3 minutes by taking 1% of the weight of the ash conveyed in the step S200 as a unit;

step S222, adding clean water once at intervals of 3 minutes by taking 1% of the weight of the clean water conveyed in the step S210 as a unit;

step S230, the main control unit sends an opening instruction to the raw pulp valve, the first pump machine conveys the raw pulp to the raw pulp barrel for storage, and the step S200 is stopped when the storage of the raw pulp barrel reaches an upper limit;

s300, conveying primary pulp, wherein the liquid level of the pulp storage barrel reaches the lower limit and sends a pulp conveying request to the main control unit;

step S310, the primary pulp in the primary pulp barrel is conveyed to the pulp storage barrel by the second pump machine for temporary storage until the primary pulp in the pulp storage barrel reaches the upper limit;

step S320, after the main control unit receives a slurry feeding request sent by any slurry distribution station, sending a slurry feeding instruction to a slurry feeding pump, and opening a valve of a slurry feeding valve group corresponding to the slurry distribution station for slurry feeding;

s400, flushing the pipeline, and when the active unit receives a slurry feeding finishing instruction, terminating the steps S100-S300, starting the flushing unit to flush the slurry feeding pipeline, and finishing automatic slurry feeding.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a perspective view of a raw material conveying mechanism.

Fig. 2 is another perspective view of the structure of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a front view of the syrup preparation mechanism.

Fig. 5 is an isometric view of fig. 4.

Fig. 6 is a perspective view of the raw pulp feed mechanism.

Fig. 7 is a perspective view of the other view angle of fig. 6.

Fig. 8 is an internal structural view of the hidden top case of fig. 6.

Fig. 9 is an enlarged view of the structure of region a in fig. 8.

Fig. 10 is a plan view of the cartridge side wall of the syrup conveying mechanism in an open state.

FIG. 11 is a block diagram of a pulping-slurry delivery process according to the present application.

FIG. 12 is a pulping process flow diagram according to the present application.

FIG. 13 is a flow chart of the present application for delivering slurry.

In the figure: 1-a system framework; 2-a control room; 3-tank side walls; 4-slurry inlet pipe; 5-a densimeter; 6-three-way valve; 7-slurry discarding pipe; 8-pulp storage barrel; 9-a stirring device; 10-ultrasonic level sensor; 11-slurry feeding valve; 12-a flow meter; 13-a slurry pump; 14-slurry feeding valve group; 15-a first water tank; 16-a flush valve; 17-a water replenishing valve; 18-mounting holes; 19-an air compressor; 20-upper water level sensor; 21-a lower water level sensor;

22-a feeding port; 23-a pulping barrel; 24-a first pump; 25-a virgin pulp valve; 26-virgin pulp pipe; 27-a slurry return pipe; 28-stock vat; 29-virgin stock agitator; 30-a second water tank; 31-a second pump; 32-stock mouth; 33-a clean water pipe;

34-a cement bin; 35-a first driver; 36-a first screw conveyor; 37-a second driver; 38-a second screw conveyor; 39-discharging bin; 40-a third screw conveyor; 41-a discharge hole; 42-a supercharger; 43-arch breaker; 44-circulating dust settling device; 45-a divider.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that:

in the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the full-automatic multi-channel pulp making and feeding system shown in the attached figures 1-10 of the specification consists of a main control unit, a raw material conveying mechanism, a raw pulp preparation mechanism and a raw pulp conveying mechanism which are communicated with the main control unit in sequence,

the raw material conveying mechanism comprises a cement bin 34, the bottom of the cement bin 34 is arranged in a converging manner from top to bottom, a discharging bin 39 used for being communicated with a third screw conveyor 40 is arranged at the bottom, and a discharging hole 41 is formed in the free end of the third screw conveyor 40; the raw material conveying mechanism is used for automatically conveying the ash material to the raw stock preparation mechanism for preparing the raw stock.

The primary pulp preparation mechanism comprises a feeding port 22 communicated with the discharging port 41, a pulping barrel 23, a primary pulp barrel 28 and a second pump 31 for conveying primary pulp, wherein the pulping barrel 23, the primary pulp barrel 28 and the second pump 31 are sequentially communicated with the feeding port 22, and the second pump 31 is communicated with the primary pulp conveying mechanism through a primary pulp port 32; the primary pulp preparation mechanism is used for pulping ash and water according to a preset proportion of the main control unit, is an upstream mechanism of the primary pulp conveying mechanism, and is also the only mechanism for obtaining qualified primary pulp.

The raw pulp conveying mechanism comprises a pulp inlet unit communicated with the raw pulp port 32, a pulp storage unit for temporarily storing the raw pulp conveyed by the pulp inlet unit, and comprises a pulp storage barrel 8 communicated with the pulp inlet unit; the pulp storage barrel 8 is used for temporarily storing the primary pulp. The pulp storage barrel 8 is provided with an ultrasonic liquid level sensor 10 which is in communication connection with the main control unit and is used for detecting the level of the primary pulp in the pulp storage barrel 8. The working principle is as follows: the ultrasonic liquid level sensor 10 has two working modes, one is to alarm according to the liquid level preset range, namely when the actual primary pulp liquid level detected by the ultrasonic liquid level sensor 10 is lower than the lowest primary pulp liquid level preset by the system, a pulp feeding application is sent to the pulping system through the main control unit; when the actual raw stock liquid level detected by the ultrasonic liquid level sensor 10 is higher than the preset highest raw stock liquid level of the system, sending a request for stopping stock feeding to the pulping system through the main control unit; make and store up thick liquid bucket 8 and all guarantee that the magma liquid level of keeping in is in normal condition all the time at operating condition constantly, the condition of unusual confession that is absolutely can not appear.

And the pulp sending unit is used for sending the primary pulp in the pulp storage unit to the pulp distribution station, and comprises a pulp sending pipe communicated with the bottom of the pulp storage barrel 8, a pulp sending valve 11, a flow meter 12, a pulp sending pump 13 and a pulp sending valve group 14, wherein the pulp sending valve group is sequentially arranged on the pulp sending pipe in an airtight mode along the pulp sending direction, and the pulp sending valve group is used for being communicated with the pulp distribution station through a pipeline.

The flushing unit is used for flushing the residual primary pulp in the pulp conveying pipe; the pulp inlet unit comprises a pulp inlet pipe 4 used for being communicated with the pulping system, a densimeter 5 used for detecting the density of the primary pulp, a three-way valve 6 used for being respectively communicated with the densimeter 5 and a pulp storage barrel 8, and a pulp discharge pipe 7 used for discharging unqualified primary pulp; the slurry feeding unit comprises a slurry feeding pipe communicated with the bottom of the slurry storage barrel 8, a slurry feeding valve 11, a flow meter 12, a slurry feeding pump 13 and a slurry feeding valve group 14, wherein the slurry feeding valve 11, the flow meter 12 and the slurry feeding pump 13 are arranged on the slurry feeding pipe in an airtight mode along the slurry feeding direction in sequence, and the slurry feeding valve group is used for being communicated with the slurry distribution station through a pipeline; the flushing unit is including first water tank 15 and the flushing pipe that is used for the retaining, flushing pipe one end and 15 intercommunications of first water tank, the other end are provided with the first branch pipe and the second branch pipe of mutual intercommunication, install flush valve 16 and free end on the first branch pipe with send the thick liquid pipe intercommunication of sending between thick liquid valve 11 and the flowmeter 12, be provided with moisturizing valve 17 on the second branch pipe free end.

The working process and the working principle are briefly described as follows:

before explaining the working principle of the system, the background of the system and the functions and complete flow of the upstream and downstream systems will be briefly described. Foundation grouting engineering is very common in water conservancy and hydropower foundation treatment, and its main process links include in proper order: preparation of grout → storage of grout → transportation of grout → secondary preparation of grout → grouting into the formation. Wherein the content of the first and second substances,

preparation of slurry: the preparation of the slurry is finished by a pulping station or a pulping system, and the high-concentration slurry is prepared by mixing the solid-line powder of cement and the like with specific marks, commonly called as ash, and water according to a specific ratio, commonly called as primary slurry.

Storage and transport of the slurry: in the prior art, slurry is conveyed by a slurry conveying pipeline through coordination and manual operation by workers of upstream and downstream nodes needing to convey slurry; the technical scheme provided by the embodiment is the process for replacing the existing manual slurry conveying process.

Secondary slurry preparation and slurry filling: the slurry preparation and grouting are generally completed by equipment of a slurry preparation station and a grouting station, in the prior art, the mainstream adopts manual operation for grouting, and the control of grouting pressure and flow still depends on the experience and judgment of operators; the slurry preparation is mainly characterized in that the secondary slurry preparation density is controlled by controlling the mixing ratio of the primary slurry and the water by means of equipment. The embodiment does not relate to secondary slurry preparation and slurry filling content at the moment, and belongs to an upstream process of secondary slurry preparation.

After understanding the flow of the basic grouting project, how the full-automatic multi-channel slurry preparation and delivery system provided in this embodiment realizes accurate automatic slurry delivery will be described in detail below.

Firstly, the system for making and feeding pulp is started, whether the self-checking is normal or not is detected, and whether the original pulp liquid level in the pulp storage barrel 8 reaches the lower limit or not is detected by the ultrasonic liquid level sensor 10:

if the lower limit is reached, the main control unit sends an application signal or an instruction requesting to send pulp to the primary pulp preparation mechanism through the wireless signal transceiver module, and the primary pulp preparation mechanism feeds back a signal whether to send pulp or not according to an operation mechanism inside the primary pulp preparation mechanism and the actual pulp making condition after receiving the signal or the instruction.

Firstly, if the raw pulp preparation mechanism does not have the pulp feeding condition, after the raw pulp conveying mechanism receives a feedback signal of not feeding pulp, the action of requesting the pulp feeding application is continued until the pulp feeding application is achieved. The judgment of the primary pulp preparation mechanism on whether to send pulp is artificially programmed and set according to the internal program of the main control unit; such as whether the stock of stock meets the seamless joint between the re-pulping and stock as the condition of whether to send pulp or not.

Secondly, if the virgin stock preparation mechanism possesses the condition of sending thick liquid this moment, then send out virgin stock, at first get into the thick liquid unit of advancing of virgin stock conveying mechanism, whether the virgin stock thick liquid density that advances that is sent by the unit detection of thick liquid is qualified:

if not, directly discarding the slurry, and returning to the slurry sending request sending process;

if the raw pulp is qualified, storing the raw pulp in a pulp storage barrel 8 of a pulp storage unit; and when the ultrasonic liquid level sensor 10 detects that the liquid level of the slurry reaches the preset upper limit, feeding back a signal to the main control unit through the wireless signal transceiver module, and sending a signal or an instruction for stopping slurry feeding to the primary slurry preparation mechanism by the main control unit, so that the primary slurry preparation mechanism stops slurry feeding.

At the moment, the main control unit judges whether a slurry feeding request from the slurry mixing station is received through the wireless signal transceiving module, if so, slurry is fed to the corresponding slurry mixing station sending the request; if not, whether the primary pulp conveying mechanism has a pulp conveying pipeline to reach the pulp conveying time or the pulp conveying frequency preset by the system and needing to be washed is detected. The slurry feeding time and the slurry feeding times are independently checked, and a flushing program can be triggered when one of the slurry feeding time and the slurry feeding times is met.

Meanwhile, the main control unit receives a grouting ending instruction sent by the wireless signal transceiver module at any time, and when the grouting ending instruction is received, the main control unit automatically starts the flushing and slurry storage barrel 8 and the corresponding slurry conveying pipeline and ends a complete slurry conveying program; and if the grouting ending instruction is not received after the flow is completed, returning to the initial state. It is worth mentioning that: the grouting ending instruction in this section refers to an ending instruction of the whole grouting construction, that is, the ending of the whole grouting, slurry feeding, slurry mixing and grouting process described above, which naturally includes the ending of the grouting process.

In the above flow, the work flow related to each work unit is specifically as follows:

the ash in the cement bin 34 is sent to the pulping barrel 23 through the discharge port 41 by the third screw conveyor 40, and after the pulp is pulped and qualified by the pulping barrel 23, the primary pulp is sent to the pulp inlet unit for receiving the primary pulp by the second pump 31, firstly, the primary pulp from the primary pulp preparation mechanism passes through the pulp inlet pipe 4, passes through the densimeter 5, and then the densimeter 5 reads the real-time density of the primary pulp and sends the density to the main control unit in real time. At the moment, if the actual density read by the densimeter 5 belongs to the density range preset by the main control unit, the three-way valve 6 is opened to communicate the densimeter 5 with the pulp storage barrel 8; on the contrary, if the actual density read by the densimeter 5 does not belong to the density range preset by the main control unit, which indicates that the raw pulp density does not meet the pulp feeding requirement, the three-way valve 6 is opened to communicate the densimeter 5 with the pulp discharge pipe 7, so that the partial raw pulp which does not meet the requirement cannot enter the raw pulp conveying mechanism. Compared with the existing manual cooperative operation, the method has the advantages that the unqualified slurry is removed, the unqualified slurry caused by the pulping process of the primary pulp preparation mechanism or the pollution of a pipeline between the primary pulp preparation mechanism and the slurry feeding station is avoided from participating in the grouting process, and the subsequent slurry preparation and grouting process jamming or unnecessary pollution caused by the quality problem of the primary pulp is avoided. Because the manual cooperative operation is adopted between the existing primary pulp preparation mechanism and the pulp feeding station, when the pulp feeding station sends a pulp feeding requirement to the primary pulp preparation mechanism, the primary pulp preparation mechanism can feed the designated amount of pulp to the pulp feeding station until the staff in the pulp feeding station feeds back sufficient information, and then the operation is stopped. In the actual situation of manual operation, the density of the primary pulp slurry configured by the default primary pulp preparation mechanism is qualified, and a double-pass mechanism and the function of rejecting unqualified slurry are not provided.

When slurry is required to be fed, the slurry feeding valve 11 is in an open state, the raw slurry in the slurry storage barrel 8 sequentially passes through the slurry feeding valve 11, the flowmeter 12 and the slurry feeding pump 13 through the slurry feeding pipe, and finally the raw slurry is fed to a downstream raw slurry preparation mechanism under the driving action of the slurry feeding pump 13 through the slurry feeding valve group 14; flowmeter 12 is used for measuring the magma volume through flowmeter 12, realizes sending the accurate control of magma volume, simultaneously, combines to send thick liquid real-time data and the magma preparation mechanism connect thick liquid real-time data can also judge and send the problem that the thick liquid pipeline exists the leakage.

The flushing unit is the functional unit originally invented by the application, the arrangement of the pipeline is compact and effective, the space configuration of the whole primary pulp conveying mechanism can be optimized, and the compactness and the use continuity of the pipeline are realized simultaneously. The working principle is as follows: when the slurry feeding time or the slurry feeding frequency reaches the flushing time or frequency preset by the system, the main control unit sends a signal to the flushing valve 16, the flushing valve 16 is opened, the valve corresponding to the slurry feeding pipeline to be cleaned in the slurry feeding group 14 is opened, and other valves are closed; clear water from the water tank 15 enters a slurry feeding pipeline for washing, the flow and the time of washing are executed according to the preset flow of the main control unit, the flow control mode is realized by adjusting the rotating speed of the slurry feeding pump 13, and after the washing time reaches the preset time, the main control unit sends a stop instruction to the slurry feeding pump 13 and closes the slurry feeding pump 13 and the washing valve 16.

As a preferable mode of this embodiment, the flushing unit may be communicated with the virgin stock preparation mechanism and the virgin stock conveying mechanism through a pipeline, and flushing is performed alternatively or simultaneously by opening and closing a valve in the pipeline, so that the structure is more compact; of course, as one skilled in the art will readily understand, two sets of flushing units respectively arranged to flush the virgin stock preparation mechanism and the virgin stock conveying mechanism respectively can achieve the same technical effect.

Example 2:

the present embodiment further optimizes the structure of the raw material conveying mechanism shown in fig. 1-3 of the specification, and specifically, the raw material conveying mechanism further includes a first screw conveyor 36 and a second screw conveyor 38 coaxially disposed along the length direction of the cement bin 34 and driven by a second driver 37 and a first driver 35, respectively; the function is to continuously convey the ash located in the cement silo 34 from both ends to the middle, so that all the ash can reach the discharge silo 39 and finally be conveyed by the third screw conveyor 40. The device further comprises a divider 45 which is arranged in the cement bin 34 and used for shielding the first screw conveyor 36 and the second screw conveyor 38 at intervals, the divider 45 is arranged to divide ash materials which are integrally pressed on the first screw conveyor 36 and the second screw conveyor 38 at intervals so as to reduce conveying pressure, and therefore under the same working condition, the second driver 37 and the first driver 35 with smaller rated output power can be matched, the energy consumption of the whole mechanism can be effectively reduced, emission and energy consumption are reduced, and the environmental protection performance of the mechanism is improved. And a circulating dust settling device 44 arranged on the outer side wall of the cement bin 34; and the arch breaker 43 is arranged on the lower side wall of the cement bin 34 and positioned between two adjacent dividers 45, and the arch breaker 43 obtains high-pressure gas discharge high-speed airflow through the communication supercharger 42. The arch breaking device 43 in the embodiment adopts air blasting to break the arch, and the circulating dust falling device 44 is combined to enable the ash material after the arch breaking to rapidly fall back, so that the situation that the conveying efficiency of raw materials is reduced because the ash material cannot be effectively conveyed due to internal dust raising is avoided.

Example 3:

as shown in fig. 4-5, the raw pulp preparing mechanism further includes a second water tank 30 communicated with the pulp making barrel 23 through a clean water pipe 33 provided with a valve; the bottom of the pulping barrel 23 is communicated with a first pump 24 for circularly pulping, and the outlet of the first pump 24 is communicated with the side wall of the pulping barrel 23 through a pulp return pipe 27 with a densimeter 5; the outlet of the first pump 24 is also communicated with the raw pulp barrel 28 through a raw pulp pipe 26 with a raw pulp valve 25, and a raw pulp stirrer 29 is arranged on the raw pulp barrel 28; a plurality of weighing sensors for supporting the pulping barrel 23 are arranged below the pulping barrel 23. The densimeter 5 is arranged on the outlet pipeline of the first pump 24, so that the real-time density of the slurry can be effectively detected, and the problem that the acquired data is easy to distort due to the fact that the densimeter or the concentration meter is arranged in the slurry making barrel 23 in the prior art is solved; the weighing sensor is used for feeding back the increment of ash and water in real time, so that the preset data and proportion of the system can be completely executed; meanwhile, the addition amount of the ash or clear water can be monitored in real time when the subsequent density is larger or smaller, so that the aims of accurately controlling the density of the primary pulp and continuously adjusting and correcting are fulfilled.

Example 4:

as an optimized design scheme for the virgin pulp conveying mechanism, the virgin pulp storage unit further comprises a stirring device arranged on the pulp storage barrel 8 and used for keeping the homogeneity of the virgin pulp, wherein the stirring device comprises a driver in driving connection, a speed reducer and a stirrer penetrating through the top of the pulp storage barrel 8 and extending to the bottom of the pulp storage barrel 8; the agitator has and stores up the interior bottom of thick liquid bucket 8 and the contact of inside wall is used for scraping off the doctor-bar mechanism that adheres to the magma. The driver is preferably a motor to facilitate the stirring speed adjustment. The effect of agitating unit lies in keeping the homogeneous state of magma, avoids leading to the magma to subside the separation because of the working hour overlength, leads to sending thick liquid inequality or local solidification jam.

In this embodiment, an upper water level sensor 20 and a lower water level sensor 21 for detecting the maximum value and the minimum value of the water level respectively are arranged in the first water tank 15; the first water tank 15 is arranged at the top of the system frame 1, and a mounting hole for accommodating the end head of the water inlet end of the flushing pipe is formed in the position, close to the bottom, of a longitudinal supporting upright column contained in the system frame 1; the system frame 1 comprises longitudinal supporting columns and horizontal cross beams which are transversely and longitudinally arranged, and a box skin or an openable and closable box side wall 3 is arranged between any adjacent or oppositely arranged longitudinal supporting column and horizontal cross beam.

The working principle is as follows: when the lower water level sensor 21 detects that the water level in the water tank 15 reaches the minimum value, the main control unit sends an instruction to the water replenishing valve 17, so that the water replenishing valve 17 is opened, and clean water enters the water tank 15 through the water replenishing valve 17 to be replenished. When the water level continuously rises until the upper water level sensor 20 detects that the water level reaches the maximum water level, a closing instruction is sent to the water replenishing valve 17 through the main control unit, and the normal water level in the water tank 15 is ensured to be always kept through circulation.

In this embodiment, the box side wall 3 is arranged between two adjacent longitudinal support columns, the box side wall 3 is composed of two horizontally hinged side wall units, and two ends of the hinged opposite side of the side wall unit close to one side of the top of the system frame 1 are hinged with the two adjacent longitudinal support columns; two ends of the hinged opposite side of the side wall unit close to one side of the bottom of the system frame 1 are in sliding clamping connection with two adjacent longitudinal supporting upright columns; any side wall unit is also provided with a bolt mechanism for fixing the side wall 3 of the box in a closed or open state.

In order to improve the practicability of the embodiment, reduce the fault rate and the dependency on electric power and increase the adaptability of the system to severe field environment, the primary pulp conveying mechanism further comprises an air compressor 19, and the three-way valve 6, the pulp conveying valve 11, the pulp conveying valve group 14, the flushing valve 16 and the water replenishing valve 17 are all pneumatic control valves driven by the air compressor 19; the slurry feeding valve group 14 comprises a plurality of pneumatic control valves which are communicated with the slurry distribution station in parallel, so that automatic multi-channel slurry feeding is realized.

Example 5:

the invention also provides a slurry feeding process, which is shown in the attached drawings 1-13 of the specification and specifically comprises the following steps:

s100, storing and conveying ash: the main control unit acquires whether the ash reserve in the cement bin 34 reaches a preset lower limit: if the lower limit is reached, performing step S110, and if the lower limit is not reached, performing step S200;

step S110, the raw material conveying mechanism sends an ash adding request to the main control unit, sends an alarm and adds ash to the cement bin 34 until the ash storage exceeds a system preset lower limit and is lower than a system preset upper limit, and the alarm is stopped and ready;

s200, preparing and storing primary pulp, wherein the main control unit sends an opening instruction to a valve on the clear water pipe 33, so that clear water in the second water tank 30 enters the pulping barrel 23 until the weight of the pulping barrel 23 reaches a preset clear water weight value of the system;

step S210, the main control unit sends an ash conveying instruction to the third screw conveyor 40, and the third screw conveyor 40 conveys ash at the bottom of the cement bin 34 into the pulping barrel 23 until the ash weight reaches a preset ash weight value of the system;

step S220, circularly pulping by the pulping barrel 23, and executing the step S300 if the density of the primary pulp detected by the densimeter 5 arranged at the outlet of the first pump 24 meets the preset value of the system; if the density is not in accordance with the preset value of the system, continuing pulping, and respectively executing the step S221 or the step S222 according to the lower density or the higher density; in the circulating pulping process in the step, the pulping stirring can be started before the clear water injection reaches the weight of the preset clear water of the system, namely, the ash conveyed in the step S210 is injected in the pulping stirring, and the stirring pulping mode can effectively prevent the ash from being bonded and attached after meeting water, and avoid the problem of uneven pulping.

Step S221, adding the ash once at intervals of 3 minutes by taking 1% of the weight of the ash conveyed in the step S200 as a unit;

step S222, adding clean water once at intervals of 3 minutes by taking 1% of the weight of the clean water conveyed in the step S210 as a unit;

step S230, the main control unit sends an opening instruction to the raw pulp valve 25, the first pump 24 delivers the raw pulp to the raw pulp barrel 28 for storage, and the step S200 is stopped when the storage of the raw pulp barrel 28 reaches an upper limit;

s300, conveying primary pulp, wherein the liquid level of the pulp storage barrel 8 reaches the lower limit and sends a pulp conveying request to the main control unit;

step S310, the second pump 31 conveys the raw pulp in the raw pulp barrel 28 into the pulp storage barrel 8 for temporary storage until the raw pulp in the pulp storage barrel 8 reaches an upper limit;

step S320, after the main control unit receives a slurry feeding request sent by any slurry distribution station, a slurry feeding instruction is sent to the slurry feeding pump 13, and a valve corresponding to the slurry distribution station in the slurry feeding valve group 14 is opened for slurry feeding;

s400, flushing the pipeline, and when the active unit receives a slurry feeding finishing instruction, terminating the steps S100-S300, starting the flushing unit to flush the slurry feeding pipeline, and finishing automatic slurry feeding.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (9)

1. The utility model provides a full-automatic multichannel system of sending thick liquid, by the main control unit, with main control unit communication connection's wireless signal transceiver module and raw materials conveying mechanism, magma preparation mechanism and the magma conveying mechanism that communicate in proper order constitute its characterized in that:

the raw material conveying mechanism comprises a cement bin (34), the bottom of the cement bin (34) is arranged in a converging manner from top to bottom, a discharge bin (39) used for being communicated with a third screw conveyor (40) is arranged at the bottom, and a discharge hole (41) is formed in the free end of the third screw conveyor (40);

the raw pulp preparation mechanism comprises a feeding port (22) communicated with the discharging port (41), a pulp making barrel (23), a raw pulp barrel (28) and a second pump (31) for conveying raw pulp, wherein the pulp making barrel and the raw pulp barrel are sequentially communicated with the feeding port (22), and the second pump (31) is communicated with the raw pulp conveying mechanism through a raw pulp port (32);

the raw pulp conveying mechanism comprises a pulp inlet unit communicated with a raw pulp port (32), a pulp storage unit used for temporarily storing the raw pulp conveyed by the pulp inlet unit, a pulp conveying unit used for conveying the raw pulp in the pulp storage unit to the pulp distribution station, and a flushing unit used for flushing residual raw pulp in the pulp conveying pipe;

the pulp inlet unit comprises a pulp inlet pipe (4) used for being communicated with the pulping system, a densimeter (5) used for detecting the density of the primary pulp, a three-way valve (6) used for being respectively communicated with the densimeter (5) and a pulp storage barrel (8), and a pulp discharge pipe (7) used for discharging unqualified primary pulp; the slurry feeding unit comprises a slurry feeding pipe communicated with the bottom of the slurry storage barrel (8), a slurry feeding valve (11), a flow meter (12), a slurry feeding pump (13) and a slurry feeding valve group (14) which are sequentially arranged on the slurry feeding pipe along the slurry feeding direction in an airtight mode, and the slurry feeding valve group is used for being communicated with the slurry distribution station through a pipeline; the flushing unit comprises a first water tank (15) and a flushing pipe, wherein the first water tank is used for storing water, one end of the flushing pipe is communicated with the first water tank (15), the other end of the flushing pipe is provided with a first branch pipe and a second branch pipe which are communicated with each other, the first branch pipe is provided with a flushing valve (16) and a free end, the first branch pipe is communicated with a slurry conveying pipe between the slurry conveying valve (11) and the flow meter (12), and the free end of the second branch pipe is provided with a water replenishing valve (17).

2. The fully automatic multi-channel slurry making and feeding system according to claim 1, wherein: the raw material conveying mechanism further comprises a first screw conveyor (36) and a second screw conveyor (38) which are coaxially arranged along the length direction of the cement bin (34) and are driven by a second driver (37) and a first driver (35) respectively; the device also comprises a divider (45) arranged in the cement bin (34) and used for shielding the first screw conveyor (36) and the second screw conveyor (38) at intervals, and a circulating dust remover (44) arranged on the outer side wall of the cement bin (34); and the arch breaker (43) is arranged on the lower side wall of the cement bin (34) and positioned between two adjacent dividers (45), and the arch breaker (43) obtains high-pressure gas discharge high-speed airflow through a communication booster (42).

3. A fully automatic multi-channel slurry making and feeding system according to claim 2, characterized in that: the primary pulp preparation mechanism also comprises a second water tank (30) which is communicated with the pulping barrel (23) through a clean water pipe (33) provided with a valve; the bottom of the pulping barrel (23) at the inlet is communicated with a first pump (24) for circularly pulping, and the outlet of the first pump (24) is communicated with the side wall of the pulping barrel (23) through a pulp return pipe (27) with a densimeter (5); the outlet of the first pump (24) is also communicated with the raw pulp barrel (28) through a raw pulp pipe (26) with a raw pulp valve (25), and a raw pulp stirrer (29) is arranged on the raw pulp barrel (28); a plurality of weighing sensors for supporting the pulping barrel (23) are arranged below the pulping barrel (23).

4. A fully automatic multi-channel slurry making and feeding system according to claim 3, characterized in that: the pulp storage unit also comprises a stirring device which is arranged on the pulp storage barrel (8) and used for keeping the uniformity of the primary pulp, wherein the stirring device comprises a driver, a speed reducer and a stirrer, the driver and the speed reducer are in driving connection, and the stirrer penetrates through the top of the pulp storage barrel (8) and extends to the bottom of the pulp storage barrel (8); the agitator has and stores up thick liquid bucket (8) bottom and inside wall contact and be used for scraping off the doctor-bar mechanism that adheres to the magma.

5. The fully automatic multi-channel slurry making and feeding system according to claim 4, wherein: and an ultrasonic liquid level sensor (10) which is in communication connection with the main control unit and is used for detecting the level of primary pulp in the pulp storage barrel (8) is installed on the pulp storage barrel (8).

6. The fully automatic multi-channel slurry making and feeding system according to claim 4, wherein: an upper water level sensor (20) and a lower water level sensor (21) which are respectively used for detecting the maximum value and the minimum value of the water level are arranged in the first water tank (15); the first water tank (15) is arranged at the top of the system frame (1), and a mounting hole for accommodating the end head of the water inlet end of the flushing pipe is formed in the position, close to the bottom, of a longitudinal supporting upright column contained in the system frame (1); the system frame (1) comprises longitudinal supporting columns and horizontal beams which are transversely and longitudinally arranged, and a box skin or an openable and closable box side wall (3) is arranged between any adjacent or oppositely arranged longitudinal supporting column and horizontal beam.

7. The fully automatic multi-channel slurry making and feeding system according to claim 6, wherein: the box side wall (3) is arranged between two adjacent longitudinal supporting upright columns, the box side wall (3) is composed of two horizontally hinged side wall units, and two ends of the hinged opposite side of the side wall unit close to one side of the top of the system frame (1) are hinged with the two adjacent longitudinal supporting upright columns; two ends of the hinged opposite side of the side wall unit close to one side of the bottom of the system frame (1) are in sliding clamping connection with the two adjacent longitudinal supporting upright columns; any side wall unit is also provided with a bolt mechanism for fixing the side wall (3) of the box in a closed or open state.

8. The fully automatic multi-channel slurry making and feeding system according to claim 7, wherein: the slurry feeding device is characterized by also comprising an air compressor (19), wherein the three-way valve (6), the slurry feeding valve (11), the slurry feeding valve group (14), the flushing valve (16) and the water replenishing valve (17) are all pneumatic control valves driven by the air compressor (19); the slurry feeding valve group (14) comprises a plurality of pneumatic control valves which are communicated with the slurry distribution station in parallel.

9. A process for making a slurry, comprising: the method is realized by adopting the full-automatic multi-channel pulp preparation and feeding system of claim 8, and specifically comprises the following steps:

s100, storing and conveying ash: the main control unit acquires whether the ash storage amount in the cement bin (34) reaches a preset lower limit: if the lower limit is reached, performing step S110, and if the lower limit is not reached, performing step S200;

step S110, the raw material conveying mechanism sends an ash adding request to the main control unit, sends an alarm and adds ash to the cement bin (34) until the ash storage exceeds a system preset lower limit and is lower than a system preset upper limit, and the alarm is stopped and ready;

s200, preparing and storing primary pulp, wherein the main control unit sends an opening instruction to a valve on a clear water pipe (33) to enable clear water in the second water tank (30) to enter the pulping barrel (23) until the weight of the pulping barrel (23) is increased to reach a system preset clear water weight value;

step S210, the main control unit sends an ash conveying instruction to a third screw conveyor (40), and the third screw conveyor (40) conveys ash positioned at the bottom of the cement bin (34) to a pulping barrel (23) until the ash weight reaches a system preset ash weight value;

step S220, circularly pulping by the pulping barrel (23), and executing the step S300 if the density of the primary pulp detected by the densimeter (5) arranged at the outlet of the first pump (24) meets the preset value of the system; if the density is not in accordance with the preset value of the system, continuing pulping, and respectively executing the step S221 or the step S222 according to the lower density or the higher density;

step S221, adding the ash once at intervals of 3 minutes by taking 1% of the weight of the ash conveyed in the step S200 as a unit;

step S222, adding clean water once at intervals of 3 minutes by taking 1% of the weight of the clean water conveyed in the step S210 as a unit;

step S230, the main control unit sends an opening instruction to the raw pulp valve (25), the first pump (24) conveys the raw pulp to the raw pulp barrel (28) for storage, and the step S200 is stopped when the storage of the raw pulp barrel (28) reaches an upper limit;

step S300, conveying primary pulp, wherein the liquid level of the pulp storage barrel (8) reaches the lower limit and sends a pulp conveying request to the main control unit;

step S310, the second pump machine (31) conveys the raw pulp in the raw pulp barrel (28) into the pulp storage barrel (8) for temporary storage until the raw pulp in the pulp storage barrel (8) reaches the upper limit;

step S320, after the main control unit receives a slurry feeding request sent by any slurry distribution station, a slurry feeding instruction is sent to a slurry feeding pump (13), and a valve corresponding to the slurry distribution station in a slurry feeding valve group (14) is opened for slurry feeding;

and S400, flushing the pipeline, terminating S100-S300 when the active unit receives a slurry feeding finishing instruction, starting a flushing unit to flush the slurry feeding pipeline, and finishing automatic slurry feeding.

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