CN112248226A - Paste filling material spiral continuous stirring device and paste material preparation method - Google Patents
Paste filling material spiral continuous stirring device and paste material preparation method Download PDFInfo
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- CN112248226A CN112248226A CN202011007759.4A CN202011007759A CN112248226A CN 112248226 A CN112248226 A CN 112248226A CN 202011007759 A CN202011007759 A CN 202011007759A CN 112248226 A CN112248226 A CN 112248226A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
- B28C7/163—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure using a pump
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
Abstract
A spiral continuous stirring device for paste filling materials and a paste material preparation method are provided, the device at least comprises a barrel, a support, a stirring device, a conveying device and a pumping device, the barrel is erected on the upper portion of the support, the barrel is of a U-shaped structure and is used for containing paste materials and used as a carrier for stirring, cutting and conveying the paste materials, a mixer is connected above the front end of the barrel, a discharge opening for discharging is formed below the tail end of the barrel, the stirring device is arranged on the barrel to stir, cut and convey the paste materials, the conveying device is arranged on one side of the barrel to convey the materials to be stirred to the mixer above the barrel, and the pumping device is arranged below the discharge opening to pump the materials into a filling drill hole; therefore, the invention can effectively solve the problems of small sand carrying amount of the slurry, low conveying efficiency, uneven mixing of the slurry and sand and unstable material performance, and improves the performance of the filling material while improving the sand carrying amount and the conveying efficiency.
Description
Technical Field
The invention relates to the technical field of underground engineering filling, reinforcement and water retention, such as mine goaf foundation filling treatment, separation zone grouting filling, mine water interception curtain and the like, in particular to a spiral continuous stirring device for a paste filling material and a paste material preparation method.
Background
Coal is used as the main energy source in China, a coal mining subsidence area of about 200 million hectares is formed in the mining process while the national energy supply is guaranteed, and the coal mining subsidence area is increased at the speed of about 7 million hectares per year. On the scale of existing coal mining, coal mining subsidence areas up to 280 million hectares are expected to occur by 2030. The coal mining subsidence area in China has a wide distribution range, and the problems of surface subsidence, ground cracks, building (structure) damage, ecological environment deterioration and the like frequently occur in the coal mining subsidence area. Grouting filling is an important method for goaf treatment, grouting materials directly influence the quality of engineering and treatment cost, and at present, goaf treatment is mostly filled with cement paste, loess cement paste, cement fly ash mortar, mortar or concrete in coal mining subsidence area field treatment.
In the prior art, in order to reduce the engineering cost, a process of carrying sand by the slurry is often adopted to fill the goaf, and the prior art has the problems of small sand carrying amount of the slurry, low conveying efficiency, uneven mixing of the slurry and the sand and unstable material performance, and seriously affects the construction period, the construction cost and the engineering quality.
In view of the above-mentioned drawbacks, the present inventors have made extensive studies and design to overcome the above-mentioned drawbacks by designing a screw type continuous stirring device for a paste filling material and a paste material manufacturing method, which are based on the experience and result of the related industries for many years.
Disclosure of Invention
The invention aims to provide a paste filling material spiral continuous stirring device and a paste material preparation method, which can effectively solve the problems of small sand carrying amount of slurry, low conveying efficiency, non-uniform mixing of slurry and sand and unstable material performance, and improve the performance of the filling material while improving the sand carrying amount and the conveying efficiency.
In order to achieve the purpose, the invention discloses a paste material continuous stirring and conveying device, which at least comprises a cylinder body, a bracket, a stirring device, a conveying device and a pumping device, and is characterized in that:
the barrel is erected at the upper part of the bracket, the barrel is of a U-shaped structure and is used for containing paste materials and is used as a carrier for stirring, cutting and conveying the paste materials, a mixer is connected above the front end of the barrel, a discharge opening for discharging materials is arranged below the tail end of the barrel, the stirring device is arranged on the cylinder body to stir, cut and convey the paste material, the conveying device is arranged on one side of the cylinder body to convey the material to be stirred to the mixer above the cylinder body, one side of the mixer is provided with a slurry conveying hole for conveying slurry, the slurry enters the mixer through the slurry conveying hole and is mixed with fine aggregate to prepare paste material, the pumping device is arranged below the discharge opening, so that paste materials with qualified quality after being stirred can enter the pumping device below the discharge opening from the discharge opening at the tail end of the barrel body to be pumped into the filling drill holes to enter the goaf or the separation zone space.
Wherein: the pumping device comprises a pumping machine, a hopper and a conveying pipe, wherein the hopper is positioned below the discharge opening and used for receiving paste materials which are uniformly stirred, the hopper is arranged on one side of the pumping machine, and the conveying pipe is positioned at the lower end of the pumping machine and used for connecting a pumping opening of the pumping machine with the orifice pipe.
Wherein: the conveying device comprises a conveying belt, a receiving hopper, a supporting frame and a transmission roller shaft, wherein the supporting frame is positioned at the bottom and supports the transmission roller shaft and the conveying belt, the upper part of the transmission roller shaft and the upper part of the transmission roller shaft are obliquely arranged, the conveying belt is wrapped on the outer side of the transmission roller shaft, one end of the conveying belt is connected with the receiving hopper, and the other end of the conveying belt is connected to the mixer.
Wherein: the stirring device comprises a stirring shaft, spiral blades and straight blades, wherein two ends of the stirring shaft are supported on the barrel, and the spiral blades and the straight blades are arranged on the stirring shaft at intervals.
Wherein: helical blade sets up for a set of for heliciform and two, and every helical blade of group sets up for the front and back of two interval 180 degrees, straight blade is same two and is a set of, and two same interval 180 degrees in every group straight blade set up before and after, thereby and straight blade and helical blade interval 90 degrees set up form helical blade and straight blade within a definite time cloth mixing stirring, the form of carrying with the stirring, improvement mix activation effect and improvement preparation conveying efficiency.
Wherein: the barrel is provided with a driving motor for driving the stirring shaft to rotate, and an output shaft of the driving motor is connected to the stirring shaft through a speed reducing mechanism to realize driving rotation.
Wherein: the rear portion in the barrel is equipped with a division board to the lotion material, the division board contains the plate body, the plate body is the U template that corresponds to barrel U type structure, and its lower extreme and the bottom of barrel have a space, and both sides support and lean on in the inboard of barrel to the space can supply qualified lotion material to pass through, the plate body is equipped with the through-hole that supplies the (mixing) shaft to run through, the through-hole is equipped with the hollow bearing that supplies the (mixing) shaft rotation.
Also discloses a paste material preparation method of the above paste material spiral continuous stirring device, which is characterized by comprising the following steps:
step 1: assembling a paste material spiral continuous stirring device, and then placing the assembled paste material spiral continuous stirring device in a goaf treatment area, a separation treatment site or a water interception curtain construction position;
step 2: crushing the materials of the building solid material, the coal gangue and the gravel into fine aggregate with the thickness of 0-10 mm by using crushing equipment, and preparing a paste material;
and step 3: transferring the sand or the fine aggregate to a conveying device, and conveying the sand or the fine aggregate to a mixer through the conveying device;
and 4, step 4: preparing slurry in a pulping station, conveying the slurry to a mixer through a slurry conveying pipe, entering the mixer through a slurry conveying hole, mixing with fine aggregate to prepare a paste material preliminarily, and enabling the paste material formed preliminarily to fall into a cylinder body of a stirring device;
and 5: the falling paste materials are further stirred, cut and conveyed through a stirring device, so that the materials are fully sheared, stirred and mixed;
step 6: the paste materials which are uniformly stirred and meet the technical requirements enter a discharge opening of the cylinder;
and 7: the paste material output from the discharge opening enters a pumping device below the discharge opening, and the paste material is conveyed to a goaf or a separation zone space by a pumping machine.
As can be seen from the above, the paste filling material screw type continuous stirring device and the paste material preparation method of the present invention have the following effects:
1. the device has simple structure, convenient operation, practicality and reliability, and the mixing amount of fine aggregates such as sand or crushed building solid materials, coal gangue, gravel and the like can reach 85 percent;
2. the function of preparing the paste material by the cooperation of the slurry and the broken materials such as sand or building solid materials, coal gangue, gravel and the like is realized, the cutting, stirring and conveying efficiency of the paste material is improved, the activation effect of the mixed paste material is increased, and the preparation efficiency and the material performance of the paste material are improved.
3. Paste materials prepared from the slurry and broken materials such as building solid materials, coal gangue, gravel and the like are used for goaf treatment, separation layer treatment or water interception curtain engineering, so that the harmless utilization of solid waste materials is realized, the performance of the paste materials is ensured, and the material cost is greatly reduced.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
Fig. 1 shows a schematic view of the overall structure of a helical continuous stirring device for paste materials of the present invention.
Fig. 2 shows a schematic plan view of a helical continuous stirring device for paste materials of the present invention.
FIG. 3 shows a schematic view of the stirring structure of the present invention.
Fig. 4 shows a schematic view of the structure of the partition plate of the section a-a' in fig. 1.
Reference numerals:
1. the device comprises a cylinder body, 2, a support, 3, a stirring shaft, 4, a partition plate, 5, a bearing, 6, a mixer, 7, a pulp conveying hole, 8, a discharge opening, 9, a transmission motor, 10, a support column, 11, a conveying belt, 12, a receiving hopper, 13, a pumping machine, 14, a conveying pipe, 15, a hopper, 16, straight blades, 17, spiral blades, 18 and a conveying roller shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. In which like parts are designated by like reference numerals.
Referring to fig. 1 to 4, the paste material continuous stirring and conveying apparatus of the present invention is shown.
The paste material continuous stirring and conveying device at least comprises a barrel body 1, a support 2, a stirring device, a conveying device and a pumping device, wherein the barrel body 1 is erected at the upper part of the support 2, and the barrel body 1 is of a U-shaped structure and is used for containing preliminarily mixed paste materials and is a carrier for stirring, cutting and conveying the paste materials. The mixer is characterized in that a mixer 6 is connected to the upper portion of the front end of the barrel 1, a discharge opening 8 for discharging is formed in the lower portion of the tail end of the barrel 1, the stirring device is arranged on the barrel 1 to stir, cut and convey paste materials, the conveying device is arranged on one side of the barrel 1 and conveys the materials to be stirred to the mixer above the barrel 1, and the pumping device is arranged below the discharge opening 8, so that paste materials with qualified quality after stirring can enter the pumping device below the discharge opening 8 from the discharge opening 8 in the tail end of the barrel 1, and are pumped into a filling drill hole to enter a goaf or a space of an abscission zone through the pumping device to fill the paste materials.
The pumping device comprises a pumping machine 13, a hopper 15 and a conveying pipe 14, wherein the hopper 15 is located below the discharge opening 8 and used for receiving paste materials which are uniformly stirred, the hopper 15 is arranged on one side of the pumping machine 13 and used for conveying the paste materials which are uniformly stirred into the pumping machine 13, the conveying pipe 14 is located at the lower end of the pumping machine 13 and used for connecting a pumping opening of the pumping machine 13 with an orifice pipe, and the paste materials are conveyed to a goaf or a separation zone space through the conveying pipe 14 and the orifice pipe under the action of the pumping machine 13.
The conveying device comprises a conveying belt 11, a receiving hopper 12, a supporting frame 10 and a transmission roller shaft 18, wherein the supporting frame 10 is positioned at the bottom and supports the transmission roller shaft 18 and the conveying belt 11, the upper part of the transmission roller shaft 18 is obliquely arranged, the conveying belt 11 is wrapped outside the transmission roller shaft 18, one end of the conveying belt 11 is connected with the receiving hopper 12, the other end of the conveying belt 11 is connected to the mixer 6, sand or crushed fine aggregates such as building solid materials, coal gangue and gravel are conveyed to the receiving hopper 12, the transmission roller shaft 18 drives the conveying belt 11 to transmit, and the conveying belt 11 conveys the sand or crushed fine aggregates such as the building solid materials, the coal gangue and the gravel to the mixer 6.
The mixer 6 arranged at the front end of the barrel 1 can mix sand or broken building solid materials, coal gangue, gravel and other fine aggregates with the slurry, the fine aggregates and the slurry are mixed to form a primary paste material and enter the barrel 1, one side of the mixer 6 is provided with a slurry conveying hole 7 for conveying the slurry, and the slurry enters the mixer 6 through the slurry conveying hole 7 to be mixed with the sand or broken building solid materials, coal gangue, gravel and other fine aggregates to prepare the paste material.
The stirring device comprises a stirring shaft 3, spiral blades 17 and straight blades 16, the stirring shaft 3 can be two or more, two ends of the stirring shaft 3 can be supported in the cylinder 1 through bearings, as shown in fig. 3, for better stirring, the spiral blades 17 and the straight blades 16 are arranged on the stirring shaft 3 at intervals, the spiral blades 17 are spiral and are arranged in a group of two blades, the two blades of each group of the spiral blades 17 are arranged in the front and back direction at an interval of 180 degrees, the same two blades of the straight blades 16 are also arranged in a group of two blades in each group of the straight blades 16 are arranged in the front and back direction at an interval of 180 degrees, and the straight blades 16 and the spiral blades 17 can be arranged at an interval of 90 degrees, so that the stirring and conveying form of mixing the specially arranged spiral blades 17 and the straight blades 16 shown in fig. 3 is formed, when the stirring shaft 3 rotates, paste materials are quickly pushed forwards through the spiral blades, The conveying efficiency of the paste materials is improved, and the straight blades 16 arranged among the spiral blades 17 at intervals cut and stir the paste materials quickly, so that the materials are fully sheared, stirred and mixed, on one hand, the high-concentration paste materials are uniformly stirred, the activation effect of the mixed materials is improved, and on the other hand, the preparation and conveying efficiency of the paste materials is greatly improved.
The barrel body 1 is provided with a driving motor 9 for driving the stirring shaft 3 to rotate, and an output shaft of the driving motor 9 can be connected to the stirring shaft 3 through a speed reducing mechanism to realize driving rotation.
Wherein, the rear portion in the barrel is equipped with a division board 4 to the lotion material, and after the lotion material was mixed through blender 6, the lotion material was mixed evenly and was carried to barrel 1 rear end to helical blade 17 and straight blade 16, division board 4 has further blocked the not even material of mixing behind barrel 1, and the not meeting the requirement the lotion material that satisfies the technical requirement passes through division board 4 under the effect of the stirring of division board 4's blockking and blade and the even mixture.
Wherein: the partition plate 4 is composed of a plate body and a hollow bearing 5, referring to fig. 4, the plate body is a U-shaped plate corresponding to a barrel 1U-shaped structure, a gap is formed between the lower end of the plate body and the lower end of the barrel 1, two sides of the plate body abut against the inner side of the barrel 1, so that qualified paste materials can pass through the gap, the plate body is provided with a through hole for the penetration of the stirring shaft 3, the through hole is provided with the hollow bearing 5 for the rotation of the stirring shaft 3, the partition plate 4 does not rotate in the rotation process of the stirring shaft 3 under the action of the hollow bearing 5, and the sealing and separating effects of. Therefore, the paste materials are uniformly mixed and conveyed to the rear end of the barrel body 1 by the helical blades 17 and the straight blades 16, the materials which are not uniformly mixed are further blocked by the partition plate 4 at the rear end 1 of the barrel body, the materials which do not meet the requirements are uniformly mixed under the blocking action of the partition plate 4 and the stirring action of the blades, and the paste materials which meet the design requirements cross the paste material partition plate 4.
Wherein: the mixer 6 is used for mixing broken building solid materials, coal gangue or sand and other fine aggregates with the slurry, a slurry conveying hole 7 for conveying the slurry is reserved on one side of the mixer 6, the slurry enters the mixer 6 through the slurry conveying hole 7 to be mixed with the sand or the broken building solid materials, the coal gangue, gravel and other fine aggregates to prepare the paste material. Sand or crushed building solid, coal gangue, gravel and other fine aggregates are mixed with the slurry to form a primary paste material, the primary paste material enters the barrel body 1, and the primary paste material is further stirred, cut and conveyed through the helical blade 17 and the straight blade 16 of the stirring shaft 3.
The invention also provides a paste material preparation method of the above paste material spiral continuous stirring device, which comprises the following steps:
step 1: the paste material spiral continuous stirring device is assembled and then placed in a goaf treatment area, a separation treatment site or a water interception curtain construction position.
Step 2: the materials such as the building solid materials, the coal gangue, the gravel and the like are crushed into fine aggregates with the thickness of 0-10 mm by crushing equipment, and the fine aggregates are used for preparing paste materials.
And step 3: the sand or the crushed fine aggregate such as the building solid material, the coal gangue, the gravel and the like is transferred to a receiving hopper 12 of a conveying device through an excavator or a forklift, a transmission roller shaft 18 drives a conveying belt 11 to transmit, and the conveying belt 11 conveys the sand or the crushed fine aggregate such as the building solid material, the coal gangue, the gravel and the like to a mixer 6.
And 4, step 4: the pulping station prepares slurries such as cement-coal-powder mortar, loess cement slurry, cement slurry and the like, the slurries are conveyed to the mixer 6 through the slurry conveying pipe, enter the mixer 6 through the slurry conveying hole 7 and are mixed with sand or crushed fine aggregates such as building solid materials, coal gangue, gravel and the like to prepare paste materials preliminarily, and the preliminarily formed paste materials fall into the cylinder 1 of the stirring device.
And 5: the paste material falling into the stirring device is further stirred, cut and conveyed through the spiral blade 17 and the straight blade 11 of the stirring device, the paste material is rapidly pushed forward by the spiral blade 17, the conveying efficiency of the paste material is improved, and the paste material is rapidly cut and stirred by the straight blade 16, so that the materials are fully sheared, stirred and mixed.
Step 6: paste materials which are uniformly stirred by the helical blades 17 and the straight blades 16 and meet technical requirements enter the rear end of the cylinder 1 through the partition plate 4, paste materials which are not uniformly mixed and do not meet the technical requirements are blocked by the partition plate 4, are continuously stirred and mixed by the blades, and enter the discharge opening 8 at the rear end of the cylinder 1 through the partition plate 4 after the paste materials are uniformly mixed and meet the technical requirements.
And 7: the paste material output from the discharge opening 8 of the stirring device enters a hopper 15 of a pumping device 13 below the discharge opening 8, and the pumping device 13 conveys the paste material to a goaf or a separation zone space through a conveying pipe 14 and an orifice pipe.
The invention can realize the full stirring and mixing of fine aggregates such as sand or crushed building solid materials, coal gangue, gravel and the like and cement fly ash slurry, and the crushed materials of sand or solid waste resources such as building solid materials, coal gangue, gravel and the like with the particle size of 0-10 mm and the mixing amount of 30-85% are mixed with the cement fly ash slurry to form paste materials, and the paste materials are pumped to spaces such as goaf cavities, separation zones or water interception curtain groove sections by a pumping device.
Example 1:
step 1: and assembling the conveying device, the stirring device and the pumping device into a set of paste material spiral continuous stirring device, and placing the device on a goaf treatment engineering site.
Step 2: the construction waste solid waste material is crushed into fine aggregate with the average particle size of 5mm by crushing equipment, and the fine aggregate is used for preparing the paste material.
And step 3: the construction waste solid waste material fine aggregate with the average particle size of 5mm is transferred to the receiving hopper 12 through the forklift, the transmission roller shaft 18 drives the conveyer belt 11 to transmit, and the conveyer belt 11 conveys the construction waste solid waste material fine aggregate with the average particle size of 5mm to the mixer 6.
And 4, step 4: preparing cement in a pulping station: the fly ash is 3:7, the water-cement ratio is 1:1, the slurry is conveyed to a mixer 6 through a slurry conveying pipe, the slurry enters the mixer 6 through a slurry conveying hole 7 and is mixed with 80% of construction waste solid waste material fine aggregate with the grain size of 5mm to prepare a paste material preliminarily, and the preliminarily formed paste material falls into a barrel 1 of a stirring device.
And 5: the paste material falling into the stirring device is further stirred, cut and conveyed through the spiral blade 17 and the straight blade 16 of the stirring device, the paste material is rapidly pushed forward by the spiral blade 17, the conveying efficiency of the paste material is improved, and the paste material is rapidly cut and stirred by the straight blade 16, so that the materials are fully sheared, stirred and mixed.
Step 6: paste materials which are uniformly stirred by the helical blades 17 and the straight blades 16 and meet technical requirements enter the rear end of the cylinder 1 through the partition plate 4, paste materials which are not uniformly mixed and do not meet the technical requirements are blocked by the partition plate 4, are continuously stirred and mixed by the blades, and enter the discharge opening 8 at the rear end of the cylinder 1 through the partition plate 4 after the paste materials are uniformly mixed and meet the technical requirements.
And 7: the paste material output from the discharge opening 8 of the stirring device enters a hopper 15 of a pumping device 13 below the discharge opening 8, and the pumping device 13 conveys the paste material to the goaf space through a conveying pipe 14 and an orifice pipe.
The properties of the paste material prepared by the above steps are shown in the following table 1:
TABLE 1
Example 2:
step 1: and assembling the conveying device, the stirring device and the pumping device into a set of paste material spiral continuous stirring device, and placing the device on a goaf treatment engineering site.
Step 2: screening the medium sand as fine aggregate of the paste material for preparing the paste material.
And step 3: the medium sand is transferred to the receiving hopper 12 through a forklift, the transmission roller shaft 18 drives the conveying belt 11 to transmit, and the conveying belt 11 conveys the medium sand to the mixer 6.
And 4, step 4: preparing cement, namely slurry with the ratio of fly ash to water to cement being 3:7 and the ratio of water to cement being 1:1 at a pulping station, conveying the slurry to a mixer 6 through a slurry conveying pipe, entering the mixer 6 through a slurry conveying hole 7 to be mixed with 80% of mixed amount of medium sand to prepare a paste material preliminarily, and enabling the paste material formed preliminarily to fall into a cylinder 1 of a stirring device.
And 5: the paste material falling into the stirring device is further stirred, cut and conveyed through the spiral blade 17 and the straight blade 16 of the stirring device, the paste material is rapidly pushed forward by the spiral blade 17, the conveying efficiency of the paste material is improved, and the paste material is rapidly cut and stirred by the straight blade 16, so that the materials are fully sheared, stirred and mixed.
Step 6: paste materials which are uniformly stirred by the helical blades 17 and the straight blades 16 and meet technical requirements enter the rear end of the cylinder 1 through the partition plate 4, paste materials which are not uniformly mixed and do not meet the technical requirements are blocked by the partition plate 4, are continuously stirred and mixed by the blades, and enter the discharge opening 8 at the rear end of the cylinder 1 through the partition plate 4 after the paste materials are uniformly mixed and meet the technical requirements.
And 7: the paste material output from the discharge opening 8 of the stirring device enters a hopper 15 of a pumping device 13 below the discharge opening 8, and the pumping device 13 conveys the paste material to the goaf space through a conveying pipe 14 and an orifice pipe.
The properties of the paste material prepared through the above steps are shown in the following table 2:
TABLE 2
Example 3:
step 1: and assembling the conveying device, the stirring device and the pumping device into a set of paste material spiral continuous stirring device, and placing the device on a goaf treatment engineering site.
Step 2: coal gangue materials around a coal mine are crushed into fine aggregates with the particle size of 5mm by crushing equipment, and the fine aggregates are used for preparing paste materials.
And step 3: the coal gangue material fine aggregate with the average particle size of 5mm is transferred to the receiving hopper 12 through a forklift, the transmission roller shaft 18 drives the conveyer belt 11 to transmit, and the conveyer belt 11 conveys the coal gangue material fine aggregate with the average particle size of 5mm to the mixer 6.
And 4, step 4: preparing cement in a pulping station: the slurry with the fly ash ratio of 3:7 and the water-cement ratio of 1:1 is conveyed to a mixer 6 through a slurry conveying pipe, enters the mixer 6 through a slurry conveying hole 7, is mixed with 80% of coal gangue material fine aggregate with the grain size of 5mm to prepare a paste material preliminarily, and the preliminarily formed paste material falls into a cylinder 1 of a stirring device.
And 5: the paste material falling into the stirring device is further stirred, cut and conveyed through the spiral blade 17 and the straight blade 16 of the stirring device, the paste material is rapidly pushed forward by the spiral blade 17, the conveying efficiency of the paste material is improved, and the paste material is rapidly cut and stirred by the straight blade 16, so that the materials are fully sheared, stirred and mixed.
Step 6: paste materials which are uniformly stirred by the helical blades 17 and the straight blades 16 and meet technical requirements enter the rear end of the cylinder 1 through the partition plate 4, paste materials which are not uniformly mixed and do not meet the technical requirements are blocked by the partition plate 4, are continuously stirred and mixed by the blades, and enter the discharge opening 8 at the rear end of the cylinder 1 through the partition plate 4 after the paste materials are uniformly mixed and meet the technical requirements.
And 7: the paste material output from the discharge opening 8 of the stirring device enters a hopper 15 of a pumping device 13 below the discharge opening 8, and the pumping device 13 conveys the paste material to the goaf space through a conveying pipe 14 and an orifice pipe.
The properties of the paste material prepared through the above steps are shown in the following table 3:
TABLE 3
Example 4:
step 1: and assembling the conveying device, the stirring device and the pumping device into a set of paste material spiral continuous stirring device, and placing the device on a goaf treatment engineering site.
Step 2: the construction waste solid waste material is crushed into fine aggregate with the average grain diameter of 10mm by crushing equipment, and the fine aggregate is used for preparing the paste material.
And step 3: the construction waste solid waste material fine aggregate with the average particle size of 10mm is transferred to the receiving hopper 12 through a forklift, the transmission roller shaft 18 drives the conveyer belt 11 to transmit, and the conveyer belt 11 conveys the construction waste solid waste material fine aggregate with the average particle size of 10mm to the mixer 6.
And 4, step 4: preparing cement in a pulping station: the slurry with the coal-ash slurry ratio of 2:8 and the water-ash ratio of 1:1 is conveyed to a mixer 6 through a slurry conveying pipe, enters the mixer 6 through a slurry conveying hole 7, is mixed with 80% of construction waste solid waste material fine aggregate with the grain diameter of 10mm to prepare a paste material preliminarily, and the preliminarily formed paste material falls into a cylinder 1 of a stirring device.
And 5: the paste material falling into the stirring device is further stirred, cut and conveyed through the spiral blade 17 and the straight blade 16 of the stirring device, the paste material is rapidly pushed forward by the spiral blade 17, the conveying efficiency of the paste material is improved, and the paste material is rapidly cut and stirred by the straight blade 16, so that the materials are fully sheared, stirred and mixed.
Step 6: paste materials which are uniformly stirred by the helical blades 17 and the straight blades 16 and meet technical requirements enter the rear end of the cylinder 1 through the partition plate 4, paste materials which are not uniformly mixed and do not meet the technical requirements are blocked by the partition plate 4, are continuously stirred and mixed by the blades, and enter the discharge opening 8 at the rear end of the cylinder 1 through the partition plate 4 after the paste materials are uniformly mixed and meet the technical requirements.
And 7: the pasty material output from the discharge opening 8 of the stirring device enters a hopper 15 of a pumping device 13 below the discharge opening 8, and the pumping device 13 conveys the pasty material to a space on a coal mining working surface of a coal mine for separation layer through a conveying pipe 14 and an orifice pipe, so that the influence of coal mining subsidence on a ground building (structure) is relieved.
The properties of the paste material prepared through the above steps are shown in the following table 4:
TABLE 4
Example 5:
step 1: and assembling the conveying device, the stirring device and the pumping device into a set of paste material spiral continuous stirring device, and placing the device on a goaf treatment engineering site.
Step 2: the construction waste solid waste material is crushed into fine aggregate with the average particle size of 5mm by crushing equipment, and the fine aggregate is used for preparing the paste material.
And step 3: the construction waste solid waste material fine aggregate with the average particle size of 5mm is transferred to the receiving hopper 12 through the forklift, the transmission roller shaft 18 drives the conveyer belt 11 to transmit, and the conveyer belt 11 conveys the construction waste solid waste material fine aggregate with the average particle size of 5mm to the mixer 6.
And 4, step 4: preparing cement in a pulping station: the fly ash is 3:7, the water-cement ratio is 1:1, the slurry is conveyed to a mixer 6 through a slurry conveying pipe, the slurry enters the mixer 6 through a slurry conveying hole 7 and is mixed with 30% of construction waste solid waste material fine aggregate with the grain size of 5mm to prepare a paste material preliminarily, and the preliminarily formed paste material falls into a barrel 1 of a stirring device.
And 5: the paste material falling into the stirring device is further stirred, cut and conveyed through the spiral blade 17 and the straight blade 16 of the stirring device, the paste material is rapidly pushed forward by the spiral blade 17, the conveying efficiency of the paste material is improved, and the paste material is rapidly cut and stirred by the straight blade 16, so that the materials are fully sheared, stirred and mixed.
Step 6: paste materials which are uniformly stirred by the helical blades 17 and the straight blades 16 and meet technical requirements enter the rear end of the cylinder 1 through the partition plate 4, paste materials which are not uniformly mixed and do not meet the technical requirements are blocked by the partition plate 4, are continuously stirred and mixed by the blades, and enter the discharge opening 8 at the rear end of the cylinder 1 through the partition plate 4 after the paste materials are uniformly mixed and meet the technical requirements.
And 7: the paste material output from the discharge opening 8 of the stirring device enters a hopper 15 of a pumping device 13 below the discharge opening 8, and the pumping device 13 conveys the paste material to the goaf space through a conveying pipe 14 and an orifice pipe.
The properties of the paste material prepared through the above steps are shown in the following table 5:
TABLE 5
The embodiment clearly shows that the high-concentration paste material prepared by crushing solid waste resources such as building solid materials, coal gangue and the like into proper particle sizes and mixing the crushed solid waste resources with the cement fly ash slurry can be used for projects such as treatment of coal mining subsidence areas, grouting filling of separation zones, water interception curtains and the like, the mixing, preparation and conveying of the cement fly ash slurry and the crushed solid waste resources such as the building solid materials or the coal gangue and the like are realized, the 28d strength of the prepared paste material reaches 3-4 MPa, the material cost is only 50% -80% of that of other materials under the condition of the same performance, the material cost is effectively reduced, the paste material performance is good, the construction efficiency is high, and the material cost can be reduced by more than 20%.
Therefore, the paste material continuous stirring device and the paste material preparation method have the following advantages:
1. the structure is simple, the operation is convenient, the practicability and the reliability are realized, and the mixing amount of fine aggregates such as sand or crushed building solid materials, coal gangue, gravel and the like can reach 85 percent;
2. the function of preparing the paste material by the cooperation of the slurry and the broken materials such as sand or building solid materials, coal gangue, gravel and the like is realized, the cutting, stirring and conveying efficiency of the paste material is improved, the activation effect of the mixed paste material is increased, and the preparation efficiency and the material performance of the paste material are improved.
3. Paste materials prepared from the slurry and broken materials such as building solid materials, coal gangue, gravel and the like are used for goaf treatment, separation zone grouting treatment or water interception curtain engineering, so that the harmless utilization of solid waste materials is realized, the performance of the paste materials is ensured, and the material cost is greatly reduced.
It should be apparent that the foregoing description and illustrations are by way of example only and are not intended to limit the present disclosure, application or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention will include any embodiments falling within the foregoing description and the appended claims.
Claims (8)
1. The utility model provides a lotion material stirs conveyor in succession, includes barrel, support, agitating unit, conveyor and pumping installations at least, its characterized in that:
the barrel is erected at the upper part of the bracket, the barrel is of a U-shaped structure and is used for containing paste materials and is used as a carrier for stirring, cutting and conveying the paste materials, a mixer is connected above the front end of the barrel, a discharge opening for discharging materials is arranged below the tail end of the barrel, the stirring device is arranged on the cylinder body to stir, cut and convey the paste material, the conveying device is arranged on one side of the cylinder body to convey the material to be stirred to the mixer above the cylinder body, one side of the mixer is provided with a slurry conveying hole for conveying slurry, the slurry enters the mixer through the slurry conveying hole and is mixed with fine aggregate to prepare paste material, the pumping device is arranged below the discharge opening, so that paste materials with qualified quality after being stirred can enter the pumping device below the discharge opening from the discharge opening at the tail end of the barrel body to be pumped into the filling drill holes to enter the goaf or the separation zone space.
2. The paste material continuous stirring and conveying apparatus according to claim 1, wherein: the pumping device comprises a pumping machine, a hopper and a conveying pipe, wherein the hopper is positioned below the discharge opening and used for receiving paste materials which are uniformly stirred, the hopper is arranged on one side of the pumping machine, and the conveying pipe is positioned at the lower end of the pumping machine and used for connecting a pumping opening of the pumping machine with the orifice pipe.
3. The paste material continuous stirring and conveying apparatus according to claim 1, wherein: the conveying device comprises a conveying belt, a receiving hopper, a supporting frame and a transmission roller shaft, wherein the supporting frame is positioned at the bottom and supports the transmission roller shaft and the conveying belt, the upper part of the transmission roller shaft and the upper part of the transmission roller shaft are obliquely arranged, the conveying belt is wrapped on the outer side of the transmission roller shaft, one end of the conveying belt is connected with the receiving hopper, and the other end of the conveying belt is connected to the mixer.
4. The paste material continuous stirring and conveying apparatus according to claim 1, wherein: the stirring device comprises a stirring shaft, spiral blades and straight blades, wherein two ends of the stirring shaft are supported on the barrel, and the spiral blades and the straight blades are arranged on the stirring shaft at intervals.
5. The paste material continuous stirring and conveying apparatus according to claim 4, wherein: helical blade sets up for a set of for heliciform and two, and every helical blade of group sets up for the front and back of two interval 180 degrees, straight blade is same two and is a set of, and two same interval 180 degrees in every group straight blade set up before and after, thereby and straight blade and helical blade interval 90 degrees set up form helical blade and straight blade within a definite time cloth mixing stirring, the form of carrying with the stirring, improvement mix activation effect and improvement preparation conveying efficiency.
6. The paste material continuous stirring and conveying apparatus according to claim 4, wherein: the barrel is provided with a driving motor for driving the stirring shaft to rotate, and an output shaft of the driving motor is connected to the stirring shaft through a speed reducing mechanism to realize driving rotation.
7. The paste material continuous stirring and conveying apparatus according to claim 1, wherein: the rear portion in the barrel is equipped with a division board to the lotion material, the division board contains the plate body, the plate body is the U template that corresponds to barrel U type structure, and its lower extreme and the bottom of barrel have a space, and both sides support and lean on in the inboard of barrel to the space can supply qualified lotion material to pass through, the plate body is equipped with the through-hole that supplies the (mixing) shaft to run through, the through-hole is equipped with the hollow bearing that supplies the (mixing) shaft rotation.
8. A paste material producing method of a paste material screw type continuous stirring apparatus according to any one of claims 1 to 7, characterized by comprising the steps of:
step 1: assembling a paste material spiral continuous stirring device, and then placing the assembled paste material spiral continuous stirring device in a goaf treatment area, a separation treatment site or a water interception curtain construction position;
step 2: crushing the materials of the building solid material, the coal gangue and the gravel into fine aggregate with the thickness of 0-10 mm by using crushing equipment, and preparing a paste material;
and step 3: transferring the sand or the fine aggregate to a conveying device, and conveying the sand or the fine aggregate to a mixer through the conveying device;
and 4, step 4: preparing slurry in a pulping station, conveying the slurry to a mixer through a slurry conveying pipe, entering the mixer through a slurry conveying hole, mixing with fine aggregate to prepare a paste material preliminarily, and enabling the paste material formed preliminarily to fall into a cylinder body of a stirring device;
and 5: the falling paste materials are further stirred, cut and conveyed through a stirring device, so that the materials are fully sheared, stirred and mixed;
step 6: the paste materials which are uniformly stirred and meet the technical requirements enter a discharge opening of the cylinder;
and 7: the paste material output from the discharge opening enters a pumping device below the discharge opening, and the paste material is conveyed to a goaf or a separation zone space by a pumping machine.
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| CN202011007759.4A CN112248226A (en) | 2020-09-23 | 2020-09-23 | Paste filling material spiral continuous stirring device and paste material preparation method |
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Application publication date: 20210122 |