CN209799976U - Integrated equipment for tunnel slag discharge, sand stone processing and concrete processing and conveying - Google Patents

Abstract

the utility model discloses a tunnel slag discharging, sand and stone processing and concrete processing and conveying integrated equipment, which comprises a mobile crushing device, wherein a discharge port of the mobile crushing device is sequentially connected with a material pre-sorting system, an aggregate processing system and a concrete processing system through a telescopic conveyor belt group, and the discharge port of the concrete processing system is connected with a concrete belt conveying system; after the materials in the tunnel blasting area B are primarily crushed by the movable crushing equipment, the materials are conveyed into a pre-sorting system and an aggregate processing system to be made into fine aggregates and fine sand with different gradation, and finally conveyed into a concrete processing system to be made into concrete, and the concrete is conveyed into a tunnel construction area through a lining trolley by a concrete belt conveying system to be sent into the tunnel construction area for concrete construction. The utility model discloses rational utilization and distribution manpower, material resources realize the automatic construction in tunnel, and the flexibility is high, and the security performance is good, has improved the construction efficiency and the quality in tunnel greatly.

Description

Integrated equipment for tunnel slag discharge, sand stone processing and concrete processing and conveying

Technical Field

The utility model discloses an integration equipment is carried in tunnel slagging tap, grit processing and concrete processing belongs to tunnel construction, tunnel hole sediment transportation, tunnel concrete transportation, the scalable belt of long distance, the grit aggregate is selected separately and grit aggregate processing technology field.

Background

the tunnel construction belongs to the difficult problem of the world level.

the current common tunnel construction methods comprise TBM, shield tunneling machine, mining method and other process methods; the TMB is mainly used for hard rock tunnel excavation, and the shield machine is used for soil tunnel excavation; both the two methods have the defects of high manufacturing cost, difficult maintenance, capability of only advancing the equipment but not retreating, limitation of rock in the implementation of the method and the like. The mine processing method is relatively simple, and the existing mature processes such as the Norwegian method, the Xinao method and the like exist on the tunnel face to the construction; the transportation of materials usually adopts a rail battery car transportation mode; the advantages are simple and flexible, but the disadvantages are very obvious; the construction personnel are large in quantity and perform cross operation, so that the safety production problem is very obvious, the ventilation cost is high, the transportation energy consumption is high, and the construction influence is more obvious especially in alpine and plateau areas; meanwhile, the construction of the concrete and the transportation of the hole slag are synchronously carried out in the tunneling process of the tunnel, the tunnel construction is usually short in construction period, the concrete is maintained for 28 days without time and the like, rolling must be started when vehicles for two or three days are used, and the normal maintenance of the concrete cannot be guaranteed due to repeated rolling of road transport vehicles, so that inverted arch crushing is caused, and permanent damage and defects are left in the tunnel; it is difficult to ensure the quality of the project.

disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a tunnel is discharged slag, grit processing and concrete processing and is carried integration equipment, can overcome the not enough of prior art.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

a kind of tunnel slag tapping, sand stone processing and concrete process and transport the integrated apparatus, it is used for the tunnel construction, there is lining trolley in the tunnel, tunnel one side has hole dreg conveying system which runs through tunnel concrete construction area and lining trolley, it includes moving the crushing apparatus, its discharge port is connected with material pre-sorting system, aggregate processing system and concrete processing system sequentially through the extendible conveyor belt group; and a discharge port of the concrete processing system is connected with the concrete belt conveying system.

A belt storage area C for placing the telescopic conveyor belt group is arranged on one side of the tunnel portal.

The mobile crushing equipment comprises a mobile crusher and a mobile feeding device connected with the mobile crusher, and is used for primarily crushing the material in the tunnel blasting area B to prepare coarse crushed aggregate;

the material pre-sorting system is a vibration screening device and is used for desliming and dehydrating materials and separating materials with unqualified chemical components;

the aggregate processing system is a five-double full dry method crushing production system for high-quality sandstone aggregates, and is used for manufacturing fine aggregates and fine sands with different grading, and accurately adjusting the finished product proportion of the fine aggregates and the fine sands;

the concrete processing system is a concrete mixing plant and is used for preparing high-performance concrete required by tunnel construction from fine aggregate sandstone;

The concrete belt conveying system comprises a conveying pump and a conveying pipeline connected with the conveying pump, and is used for directly conveying concrete to a pouring place along the conveying pipeline to construct the tunnel inverted arch construction area A.

the feeding hole of the movable feeding device is connected with a feeding machine, and the feeding machine is a loader or an excavator.

The mobile crushing equipment is arranged beside the tunnel blasting area B, and a movable blasting isolation device is arranged between the mobile crushing equipment and the tunnel blasting area B.

Finished product bins with different grades are arranged at the discharge port of the aggregate processing system.

The concrete belt conveying system is arranged on the other side of the tunnel opposite to the hole slag conveying system.

Compared with the prior art, the utility model discloses a tunnel slag tapping, grit processing and concrete processing transport integration equipment, it includes the mobile crushing equipment, its discharge gate through scalable conveyer belt group in proper order with material pre-sorting system, aggregate processing system and concrete processing system connection, the discharge gate and the concrete belt conveyor system connection of concrete processing system; the method comprises the steps of primarily crushing materials in a tunnel blasting area B through mobile crushing equipment to obtain coarse crushed aggregates, conveying the coarse crushed aggregates into a material pre-sorting system through a telescopic conveyor belt group for screening, conveying the qualified coarse crushed aggregates into an aggregate processing system to prepare fine aggregates and fine sands with different grading, mixing the fine aggregates and fine sands with different grading according to a required proportion to prepare finished sandstone aggregates with different fineness moduli, storing the finished sandstone aggregates and the finished sandstone aggregates into corresponding finished product bins, conveying the finished sandstone aggregates and the finished sandstone into a concrete processing system to prepare concrete, and conveying the concrete into a concrete construction site and a lining trolley through a concrete belt conveying system to construct a tunnel inverted arch construction area A.

The movable crushing equipment can advance and retreat along with tunneling and is flexibly transported.

The telescopic conveyor belt group and the concrete belt conveying system are adopted to replace the traditional vehicle transportation, the operation is stable, the vehicle meeting problem of the traditional vehicle transportation is solved, the number of operators is reduced, and the production is safe; permanent damage to the inverted arch concrete caused by vehicle crossing of the transport vehicle is avoided, and the concrete can automatically level; the energy consumption and the emission of transport vehicles are reduced, and the investment of air exhaust equipment for tunnel construction is reduced; the belt is driven by electric power, so that the belt is more energy-saving and economical than fuel oil; the electricity consumption is about 0.2 kW/ton km.

The material pre-sorting system can be used for desliming and dehydrating materials, separating mud-containing materials, methylene blue high-content materials and chemical component unqualified materials, sorting qualified materials, and entering the aggregate processing system to ensure the stable quality of gravel aggregates and concrete.

The high-quality sandstone aggregate is crushed and manufactured by adopting a five-double full dry method crushing production line, fine sandstone aggregate can be produced according to the proportion required by a concrete formula, no waste is caused when the finished material is supplied, the manufacturing process of multi-stage desliming, double-impact sand manufacturing and multi-stage powder selection is adopted, the processing capacity is strong, the requirement on raw materials is low, the mining cost of a mine is effectively reduced, and the waste recycling is realized; the automatic sand making machine has the advantages that the automatic production can be realized, the flexibility is high, the crushing ratio is large, the sand making efficiency and the sand making quality are effectively improved, the energy consumption is low, and the manufacturing cost is low; and the fine sand with different stone powder contents can be produced to meet the preparation requirements of various concrete strength on low cost, the quality of the fine sand is effectively improved, and the stability and the safety of the concrete are further improved.

The feeding port of the movable crushing equipment is also provided with feeding machinery, the movable crushing equipment is arranged beside the tunnel blasting area B, and a movable blasting isolation device is arranged between the movable crushing equipment and the tunnel blasting area B, so that labor and quantity of constructors are effectively reduced, production efficiency is high, and safety performance is good.

The utility model discloses an in the tunnel job site carry on the tunnel excavation material handle recycle, the automatic preparation concrete, adopt scalable conveyer belt group and concrete belt conveyor system to carry out the material operation, rational utilization, distribution manpower and material resources can save the use of a large amount of labours and material resources, realize the automatic construction in tunnel, the flexibility is high, and the security performance is good, has improved the construction efficiency and the construction quality in tunnel greatly.

Drawings

Fig. 1 is a schematic view of the working process of the present invention.

FIG. 2 is a schematic cross-sectional view taken along line I-I of FIG. 1.

Fig. 3 is a schematic flow chart (embodiment one) of the aggregate processing system in fig. 1.

fig. 4 is a schematic flow chart of the aggregate processing system in fig. 1 (example two).

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention:

As shown in fig. 1 and 2, a tunnel slag discharge, sand processing and concrete processing and conveying integrated device for tunnel construction, which is provided with a lining trolley 200 in a tunnel, and a hole slag conveying system 110 which penetrates through a tunnel concrete construction area and the lining trolley 200 is provided at one side of the tunnel, and comprises: the discharge port of the mobile crushing equipment 100 is sequentially connected with the material pre-sorting system 300, the aggregate processing system 400 and the concrete processing system 600 through the telescopic conveyor belt group 800; the discharge port of the concrete processing system 600 is connected with the concrete belt conveying system 700.

Be equipped with band storage district C in tunnel portal one side, scalable conveyer belt group 800 is placed in band storage district C, conveniently accomodates, manages.

The mobile crushing equipment 100 is a mobile crusher 1001 and a mobile feeding device 1002 connected with the mobile crusher and is used for primarily crushing materials in a tunnel blasting area to prepare coarse crushed aggregates; the movable feeding device 1002 is used for reducing the movable broken feeding height, and feeding is facilitated.

The material pre-sorting system 300 is a vibrating screening device, and specifically comprises a desliming screen and a dewatering screen which are used for preliminary desliming and dewatering of coarse crushed aggregates and screening of various materials containing unqualified chemical components.

the aggregate processing system 400 is a five-double full dry method crushing production system for high-quality sandstone aggregates, and is used for manufacturing fine aggregates and fine sands with different grades according to the proportion required by a concrete formula and accurately adjusting the mixing proportion of the fine aggregates and the fine sands; and finished product bins 500 of different grades are arranged at the discharge outlet of the aggregate processing system 400.

The concrete processing system 600 is a concrete mixing plant for humidifying finished sand aggregate with different fineness modulus to make concrete.

The concrete belt conveying system 700 comprises a conveying pump and a conveying pipeline connected with the conveying pump, and can directly convey concrete to a pouring place along the conveying pipeline by using the pressure of the conveying pump to construct a tunnel inverted arch construction area A; the concrete belt conveying system 700 is arranged on one side of the tunnel, the hole slag conveying system 1100 is arranged on the other side of the tunnel inverted arch construction area A, concrete is poured in the middle area of the tunnel inverted arch construction area A, cross operation can be achieved, damage of vehicles to the concrete is reduced, sufficient time is provided for curing, and engineering construction progress is improved.

The feed inlet of the mobile crushing apparatus 100 is connected with a loading machine 900, and specifically, the loading machine 900 may be a loader or an excavator, which solves the problem of loading and reduces the number of constructors and the construction labor.

the mobile crushing equipment 100 is arranged beside the tunnel blasting area B, so that the loading is convenient; and a movable blasting isolation device 1000 is arranged between the movable crushing device 100 and the tunnel blasting area B, so that the safety of the device and constructors is ensured.

Based on the process of the tunnel slag tapping, sand and stone processing and concrete processing and conveying integrated equipment, the process specifically comprises the following steps:

s1, conveying the materials in the tunnel blasting area B into the mobile crushing equipment 100 for primary crushing into coarse crushed aggregates so as to be conveniently conveyed to the outside of the tunnel through the telescopic conveyor belt group 800 for aggregate processing;

the materials in the tunnel blasting area B are obtained from tunnel excavation through a mine mining blasting technology; and crushed into coarse crushed aggregates with the particle size of below 150mm by moving the crushing equipment 100;

the material in the tunnel blast zone B is carried into the mobile crushing plant 100 by the loading machinery 900.

s2, transporting the coarse crushed aggregates in the step s1 to the material pre-sorting system 300 outside the tunnel through the telescopic conveyor belt group 800 for pre-screening;

Specifically, the coarsely crushed aggregate contains mud, has high water content, and contains some unqualified materials adsorbing high chemical components such as methylene blue, the material pre-sorting system 300 can screen the unqualified materials out, so that the unqualified materials are conveyed into the waste storage bin 1200, and the qualified materials are conveyed into the aggregate processing system 400, so that the quality of the subsequent finished product sandstone aggregate is improved.

The retractable conveyor belt assembly 800 can deliver coarse aggregate to the material pre-sorting system 300 outside the tunnel from the side of the tunnel and through the lining trolley, without the need for vehicle transportation through the middle of the tunnel, preventing the vehicle from crushing the concrete.

s3, conveying the screened qualified materials into an aggregate processing system 400 through a material pre-sorting system 300, and preparing finished product sandstone aggregates with different grades according to the concrete demand proportion;

The aggregate processing system 400 is a five-double full dry method crushing production system for high-quality sandstone aggregates, and adopts a manufacturing process of multi-stage desliming, double-impact crushing, double-vertical shaft impact crushing and shaping sand making, multi-stage powder selection and multi-stage circulation to make fine aggregates and fine sands with different grading, and then a finished product sandstone aggregate with different fineness modulus is prepared by a finished product sand fineness modulus regulating and controlling device and is stored in a corresponding finished product bin 500;

The finished sand fineness modulus regulating and controlling device can regulate the mixing ratio of the fine aggregate and the fine sand, accurately regulate and control the fineness modulus of the finished sand aggregate, and further improve the quality stability of concrete.

s4, conveying the finished sand aggregate in the finished product bin 500 into the concrete processing system 600 to prepare concrete, and conveying the concrete into a concrete construction site and the lining trolley 200 through the concrete belt conveying system 700 to construct the tunnel inverted arch construction area A.

the applicant of the above five-double full dry crushing production system for high-quality sand aggregate and the processing method thereof has already disclosed in the application document with the patent number of 2019101516208, which is described in detail as follows:

as shown in fig. 3 and 4, a five-double full dry crushing production line of high-quality sandstone aggregate,

Comprises a material pretreatment system and a fine aggregate processing system.

The material pretreatment system is used for primary desliming, crushing and shaping of raw materials; the fine aggregate coarse and fine processing system is used for manufacturing fine aggregate sand aggregates and comprises a double-speed double-frequency crushing sand making device 7, a finished product screening, proportion adjusting circulating system, a primary powder concentrator 9 and a multi-stage powder concentrator; the device also comprises an operation belt conveyor used for connecting material ports of each device;

the dust removing points of the equipment are connected with a dust collecting system 15 through a dust removing pipeline;

The devices are all connected with a PLC control system for controlling mutual cooperation of the devices.

The material pretreatment system comprises a bar feeder 2, an impact crushing device 3, a first screening device 5 and a desliming screen 4, wherein the impact crushing device 3 can be set as a coarse crushing impact crusher 301 and a middle crushing impact crusher 302, so that two-stage process crushing can be realized, the first screening device 5 can be set as a first multilayer vibrating screen 501 and a second multilayer vibrating screen 502, a feed inlet of the bar feeder 2 is connected with a raw material bin 1, a coarse material outlet is connected with a feed inlet of the coarse crushing impact crusher 301, a discharge outlet of the coarse crushing impact crusher 301 is connected with the first multilayer vibrating screen 501, and ultra-particle-diameter material outlets at the side parts of the first multilayer vibrating screen 501 and the second multilayer vibrating screen 502 are circularly connected to a feed inlet of the middle crushing impact crusher 302 through an operating belt; the small-particle-size material outlet is connected with a transfer bin 6 through an operation belt, and a discharge port of the transfer bin 6 is connected with a fine-quality coarse and fine aggregate processing system; a mud outlet at the bottom of the first multi-layer vibrating screen 501 is connected with the waste bin 20; a fine material outlet at the bottom of the bar feeder 2 is connected with a desliming screen 4, a large particle material outlet at the side part of the desliming screen 4 is connected to a medium crushing and impact breaking 302 inlet through an operating belt, and the mud material at the bottom outlet is conveyed into a waste bin 20;

The fine aggregate coarse and fine processing system comprises a double-speed double-frequency crushing sand making device 7, the double-speed double-frequency crushing sand making device 7 can be a constant-speed vertical shaft crusher 701 and a high-frequency vertical shaft crusher 702, a feed inlet of the constant-speed vertical shaft crusher 701 is connected with a transfer bin 6, a discharge outlet of the double-speed double-frequency crushing sand making device 7 is connected with a primary powder concentrator 9, a discharge outlet of the primary powder concentrator 9 is connected with a finished product screening and proportion adjusting circulating system, and the primary powder concentrator 9 is used for pre-selecting powder for a mixture made by the double-speed double-frequency crushing sand making device 7 and preventing the mixture entering the finished product screening and proportion adjusting circulating system from blocking a screen; the finished product screening and proportion adjusting circulating system is used for screening the super-grain-size materials, the fine crushed stones, the fine rice stones and the fine sand, adjusting the discharging proportion of the finished product sandstone aggregate and realizing the adjustment of the fineness modulus of the finished product sandstone aggregate; the ultra-particle-diameter material discharge port of the finished product screening and proportion adjusting circulating system is circularly connected to a 701 feed port of a constant-speed vertical shaft, the fine crushed stone and fine rice stone discharge ports are connected to corresponding storage bins, meanwhile, the fine crushed stone is circularly connected to the 701 feed port of the constant-speed vertical shaft, the fine rice stone is circularly connected to a 702 feed port of a high-frequency vertical shaft, multi-stage powder separation equipment is arranged below the fine sand discharge port, and fine sand with different stone powder contents can be manufactured by adopting the multi-stage powder separation equipment.

A material buffer bin 12 is arranged above a feeding hole of the double-speed double-frequency crushing sand making equipment 7 and used for buffering materials, and the continuity and stability of sand making are guaranteed.

The finished sand fineness modulus regulating and controlling device is a material distributing device 11, the material distributing device 11 comprises a plurality of material distributors which are correspondingly connected with the discharge ports of the second screening device one by one, and the material distributors are electro-hydraulic material distributors or three-way regulating devices arranged on the discharge shuttle grooves of the second screening device;

Referring to fig. 3, the second screening device may be an elliptical vibratory screen 10 arranged in multiple layers; the material distribution equipment 11 comprises a plurality of electro-hydraulic material distributors which are connected with the discharge ports of the elliptical vibrating screen 10 in a one-to-one correspondence manner; the elliptical vibrating screen 10 is provided with more than 4 layers, and sequentially comprises an ultra-grain-diameter material layer with the grain diameter larger than 30mm, a fine gravel layer with the grain diameter of 15-30mm, a fine millstone layer with the grain diameter of 5-15mm and a fine sand layer with the grain diameter of 5-3mm from top to bottom, corresponding outlets for the ultra-grain-diameter material, the fine gravel, the fine millstone and the fine sand are arranged at the side part of the elliptical vibrating screen 10, and an outlet for the fine sand with the grain diameter smaller than 3mm is arranged at the bottom; the electro-hydraulic distributor comprises a first distributor 1101, a second separator 1102 and a third distributor 1103 which are correspondingly connected with outlets of fine crushed stones, fine rice stones and fine sands of the elliptical vibrating screen 10, one discharge port of the first distributor 1101 is connected with a corresponding fine crushed stone bin 16, and the other discharge port of the first distributor is connected to a constant-speed vertical shaft crushing feed port 701 through a material buffer bin 12; one discharge port of the second separator 1102 is connected with the corresponding fine rice and stone bin 17, and the other discharge port and the third distributor 1103 are connected with the feed port of the high-frequency vertical shaft crusher 702; a multi-stage powder selecting device is arranged below a fine sand outlet of the elliptical vibrating screen 10, specifically, a fourth distributor 13 is arranged below the fine sand outlet of the elliptical vibrating screen 10, one discharge port of the fourth distributor 13 is connected with a corresponding low stone powder fine sand bin 19 through a second-stage powder selecting machine 14, and the other discharge port is connected with a high stone powder fine sand bin 18;

referring to fig. 4, the second screening device may also be an adjusting sieve 21, a three-way adjusting device is arranged on each discharging shuttle groove of the adjusting sieve 21, a discharging port of the three-way adjusting device and a material distributing belt 22 are arranged, the adjusting sieve 21 is arranged in multiple layers, a super-grain-size material layer, a fine gravel layer, a fine sand layer and a fine sand outlet are arranged at the bottom from top to bottom in sequence, the three-way adjusting device can adjust the discharging ratio thereof, and the material distributing belts 22 corresponding to one another are arranged below each discharging port of the adjusting sieve 21, and convey the super-grain-size material into a normal-speed vertical shaft crusher 701, the fine gravel or the normal-speed vertical shaft crusher 701, or the fine gravel bin 16 corresponding thereto; fine rice stones are conveyed into the high-frequency vertical shaft crusher 702 or into the corresponding fine rice stone bin 17; the refined sand is conveyed into a material distributor 13 No. four, one discharge port of the material distributor 13 No. four is connected with a corresponding low stone powder refined sand bin 19 through a secondary powder concentrator 14, and the other discharge port is connected with a high stone powder refined sand bin 18.

or the finished product screening and proportion adjusting circulating system comprises second screening equipment and a finished product sand fineness modulus adjusting and controlling device connected with the second screening equipment; and a fineness modulus detection control device is arranged at a discharge port of the finished sand fineness modulus regulating and controlling device.

And the second screening equipment screens and classifies the fine sand-stone aggregate mixture into super-grain-size materials, fine crushed stones, fine rice stones, fine sand and fine sand, the super-grain-size materials, the fine rice stones, the fine sand and the fine sand are respectively metered by the metering belt weighers, the weight proportion is preset on a computer, and the conveying speed of the metering belt weighers is automatically adjusted and adjusted by a system according to the preset proportion, so that the relative proportion of the materials with different specifications can be kept unchanged under different yields, and the finished sand-stone aggregates with different fineness moduli are obtained. Specifically, the finished sand fineness modulus regulating and controlling device (application number: 201810147376.3) is a plurality of metering belt scales which are correspondingly connected with discharge ports of the second screening device one by one, the corresponding metering belt scales convey super-grain-size materials into a constant-speed vertical shaft crusher 701, fine gravel into the constant-speed vertical shaft crusher 701, fine rice stones into a high-frequency vertical shaft crusher 702, or the fine gravel, the fine rice stones and the fine sand are mixed by the corresponding metering belt scales to prepare finished sand aggregate with different fineness moduli and convey the finished sand aggregate into corresponding storage bins; or the refined sand is conveyed into the distributor 13, one discharge port of the distributor 13 is connected with the corresponding low stone powder refined sand bin 19 through the secondary powder concentrator 14, and the other discharge port is connected with the high stone powder refined sand bin 18.

The fineness modulus detection control device (application number: 201810867604.4) is used for detecting and monitoring the fineness modulus of the finished sand aggregate at the discharge port of the fineness modulus regulating and controlling device in real time, the detection data is stored in the PLC control system, the fineness modulus regulating and controlling device is regulated and controlled through the PLC control system, the stability of the fineness modulus regulating and controlling device is guaranteed, the flexibility is high, the fineness modulus of the finished sand aggregate is monitored and controlled in real time, the regulation and control precision is high, the stability of the fineness modulus of the finished sand aggregate is guaranteed, and the quality stability of the product is improved.

The finished product screening and proportion adjusting circulating system comprises second screening equipment and material distributing equipment 11 connected with the second screening equipment;

the fourth distributor 13 is an electro-hydraulic distributor, which realizes accurate adjustment of the material distribution ratio.

The production line-based five-double full dry method crushing production method for the high-quality sandstone aggregate specifically comprises the following steps:

s1, pretreating materials, namely, carrying out desliming and crushing on the materials for multiple times through a desliming device and a counterattack crushing device 3, specifically, conveying mine incoming materials to a bar feeder 2 to carry out primary desliming, carrying out secondary desliming on small-particle-size materials from a discharge port at the bottom of the bar feeder 2 through a desliming screen 4, feeding the ultra-particle-size materials into a coarse crushing counterattack crusher 301 of the counterattack crushing device and a first multilayer vibrating screen 501 from a discharge port at the side part of the bar feeder 2 to carry out secondary desliming, simultaneously screening the ultra-particle-size materials by the first multilayer vibrating screen 501, feeding the screened ultra-particle-size materials into a medium crushing counterattack crusher 302 for circular crushing, and screening the small-particle-size materials into a transfer bin 6;

the material pretreatment adopts a closed cycle design, specifically, the material after the secondary desliming is screened by a first screening device 5, the material with small particle size is stored in a transfer bin 6, and the material with large particle size returns to the medium crushing and back-beating crushing 302 for cyclic crushing;

s2, preparing sand, namely conveying the pretreated materials in the transfer bin 6 into a double-speed double-frequency crushing sand preparing device 7 to prepare a mixture of fine sand, fine broken stone and fine rice stone;

Specifically, the pretreated materials in the transfer bin 6 are sent into a constant-speed vertical shaft crusher 701 to be crushed, so as to prepare a mixture of fine sand, fine gravel and fine rice-stone, and the mixture of fine sand, fine gravel and fine rice-stone is subjected to mixture pre-selection powder through a primary powder concentrator;

s3, screening the mixture by adopting a finished product screening and proportion adjusting circulating system, and adjusting the discharging proportion of the finished product sandstone aggregate so that the material with the super particle size enters the high-speed high-frequency vertical shaft crusher 702 again for crushing; sieving the small-particle-size materials respectively to prepare fine sand, fine broken stone and fine rice stone;

Specifically, the mixture is screened by a second screening device to obtain fine sand, fine gravel and fine rice stones, the mixture is divided in proportion by a dividing device 11, the material with the super particle size is conveyed into a normal-speed vertical shaft crusher 701, and the fine gravel is conveyed into a fine gravel bin 16; the fine rice stones are conveyed into a fine rice stone bin 17, or the redundant fine crushed stones and the fine rice stones enter the double-speed double-frequency crushing sand making equipment 7 again for circular crushing;

Or after the mixture is screened and graded by the second screening equipment, finished sand aggregate with different fineness modulus is prepared by the finished sand fineness modulus regulating and controlling device, and the redundant finished sand and aggregate enter the double-speed double-frequency crushing sand preparation equipment 7 for circular crushing; the fineness modulus regulating and controlling device of the finished sand is used for monitoring and controlling the fineness modulus detection and control device in real time, so that the stability of the fineness modulus of the aggregate of the finished sand is ensured;

s4, performing secondary powder separation on the fine sand, and preparing the fine sand with different stone powder contents after the fine sand is treated by a multi-stage powder separation device;

specifically, the fine sand is distributed in proportion by a fourth distributor 13, when the fine sand with low stone powder content needs to be manufactured, the fine sand is sequentially sent into a second-stage powder concentrator 14 from one discharge port of the fourth distributor 13 to be subjected to second-stage powder concentration, so that the fine sand with low stone powder content is manufactured, and otherwise, the fine sand is directly stored into a fine sand bin 18 with high stone powder content from the other discharge port of the fourth distributor 13.

Claims (7)

1. The utility model provides a tunnel is mucked, grit processing and concrete processing carries integration equipment, it is used for the tunnel construction, is equipped with lining cutting platform truck (200) in the tunnel, and tunnel one side is equipped with hole sediment conveying system (1100) that run through tunnel concrete construction region and lining cutting platform truck (200), its characterized in that: the device comprises a mobile crushing device (100), wherein a discharge hole of the mobile crushing device is sequentially connected with a material pre-sorting system (300), an aggregate processing system (400) and a concrete processing system (600) through a telescopic conveyor belt group (800); and a discharge port of the concrete processing system (600) is connected with the concrete belt conveying system (700).

2. The integrated equipment for tunnel slag tapping, sand and stone processing and concrete processing and conveying according to claim 1, which is characterized in that: a belt storage area C for placing the telescopic conveyor belt group (800) is arranged on one side of the tunnel opening.

3. the integrated equipment for tunnel slag tapping, sand and stone processing and concrete processing and conveying according to claim 1, which is characterized in that: the mobile crushing equipment (100) comprises a mobile crusher (1001) and a mobile feeding device (1002) connected with the mobile crusher, and is used for primarily crushing materials in the tunnel blasting area B to prepare coarse crushed aggregates;

The material pre-sorting system (300) is a vibration screening device and is used for desliming and dehydrating materials and separating materials with unqualified chemical components;

The aggregate processing system (400) is a five-double full dry method crushing production system for high-quality sandstone aggregates, and is used for manufacturing fine aggregates and fine sands with different grades and accurately adjusting the finished product proportion of the fine aggregates and the fine sands;

the concrete processing system (600) is a concrete mixing station and is used for preparing high-performance concrete required by tunnel construction from fine aggregate sandstone;

the concrete belt conveying system (700) comprises a conveying pump and a conveying pipeline connected with the conveying pump, and is used for conveying concrete to a pouring place by a belt along the side face of the tunnel to construct the tunnel inverted arch construction area A.

4. the integrated equipment for tunnel slag tapping, sand and stone processing and concrete processing and conveying according to claim 3, which is characterized in that: the feeding hole of the movable feeding device (1002) is connected with a feeding machine (900), and the feeding machine (900) is a loader or an excavator.

5. The integrated equipment for tunnel slag tapping, sand and stone processing and concrete processing and conveying according to claim 3, which is characterized in that: the mobile crushing device (100) is arranged beside the tunnel blasting zone B, and a movable blasting partition device (1000) is arranged between the mobile crushing device (100) and the tunnel blasting zone B.

6. The integrated equipment for tunnel slag tapping, sand and stone processing and concrete processing and conveying according to claim 3, which is characterized in that: finished product bins (500) with different grades are arranged at the discharge outlet of the aggregate processing system (400).

7. the integrated equipment for tunnel slag tapping, sand and stone processing and concrete processing and conveying according to claim 3, which is characterized in that: and the concrete belt conveying system (700) is arranged on the other side of the tunnel opposite to the hole slag conveying system.