CN109366742B - Concrete production system and production method thereof - Google Patents
Concrete production system and production method thereof Download PDFInfo
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- CN109366742B CN109366742B CN201811119804.8A CN201811119804A CN109366742B CN 109366742 B CN109366742 B CN 109366742B CN 201811119804 A CN201811119804 A CN 201811119804A CN 109366742 B CN109366742 B CN 109366742B
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- gravel
- sand
- cement
- concrete
- mud
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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
- B28C9/00—General arrangement or layout of plant
- B28C9/02—General arrangement or layout of plant for producing mixtures of clay or cement with other materials
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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
- B28C5/16—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 vertical or steeply inclined 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
- 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
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
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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
- B28C7/067—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of stationary hoppers, chambers or bins from which the material is fed gravitationally, e.g. having agitating means therein
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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
- B28C7/10—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of rotary members, e.g. inclinable screws
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a concrete production system and a production method thereof, and the concrete production system comprises a sand feeding device, a cement feeding device, a gravel feeding device, a sand-mud mixing device, a gravel screening spiral guide chute, a sand-mud-gravel mixing device and a concrete mixer, wherein the sand feeding device can supply raw material sand required by concrete to the sand-mud mixing device, the cement feeding device can supply raw material cement required by the concrete to the sand-mud mixing device, the sand-mud mixing device can mix the supplied sand and the supplied cement, the gravel feeding device can supply the raw material gravel required by the concrete to the sand-mud-gravel mixing device after the raw material gravel is screened by the gravel screening spiral guide chute, and the sand-mud-gravel mixing device can mix the mixed sand and cement with gravel again and then mix the mixture by the concrete mixer to form the concrete. The invention ensures the mixing uniformity of all raw materials required by the concrete and improves the quality grade of the concrete.
Description
Technical Field
The invention belongs to the technical field of concrete production, and particularly relates to a concrete production system and a production method thereof.
Background
Concrete is one of the most important civil engineering materials of the present generation. The concrete has the characteristics of rich raw materials, low price and simple production process, so that the consumption of the concrete is increased more and more. Meanwhile, the concrete also has the characteristics of high compressive strength, good durability, wide strength grade range and the like. These characteristics make it very widely used, not only in various civil engineering, that is shipbuilding, machinery industry, ocean development, geothermal engineering, etc., but also concrete is an important material.
The quality grade of the concrete is very important, and the quality of the concrete can be greatly improved by selecting qualified concrete production equipment and production technology. The most common equipment in the concrete production process is a concrete mixer, and when concrete is mixed, required raw materials are generally conveyed into the concrete mixer together for mixing and stirring, so that the produced concrete is not uniformly mixed, the concrete mixing time is prolonged, and the quality grade of the produced concrete is low. The invention mainly aims at concrete consisting of sand, cement and gravel, and improves the quality grade of the concrete through special equipment and a production method for producing the concrete.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the concrete production system and the production method thereof, which ensure the mixing uniformity of all raw materials required by the concrete and improve the quality grade of the concrete.
The technical scheme is as follows: in order to achieve the aim, the concrete production system comprises a sand feeding device, a cement feeding device, a gravel feeding device, a sand and mud mixing device, a gravel screening spiral guide chute, a sand, mud and gravel mixing device and a concrete mixer; the sand feeding device and the cement feeding device are symmetrically arranged about the sand-mud mixing device, the sand feeding device can supply raw material sand required by concrete to the sand-mud mixing device, the cement feeding device can supply raw material cement required by concrete to the sand-mud mixing device, and the sand-mud mixing device can mix the supplied sand with the supplied cement; the gravel and sand mixing device is arranged right below the gravel and sand mixing device, the gravel and sand mixing device can discharge sand and cement mixed in the gravel and sand mixing device, the gravel feeding device can supply raw material gravel required by concrete to the gravel and sand mixing device after being screened by the gravel screening spiral guide chute, and the gravel and sand mixing device can mix the mixed sand and cement with gravel; the concrete mixer is arranged under the sand and mud mixing device, and the concrete mixer can mix sand, cement and gravel which are mixed after being added with water to form concrete.
Furthermore, the sand and mud mixing device comprises a circular receiving groove, an elastic supporting assembly, an annular frame, a receiving cover, a material guide pipe, a first driving motor and a vibrating motor; the annular material receiving groove is arranged on an annular frame through elastic support of an elastic support assembly, annular teeth are arranged on the annular frame in a surrounding mode, a driving end of the first motor is connected with a gear in a driving mode, and the gear is in transmission connection with the annular teeth; the receiving cover is connected and arranged at the bottom edge of the annular receiving groove, the upper half part of the receiving cover is cylindrical, the lower half part of the receiving cover is gradually contracted, and the guide pipe is communicated with a contraction port of the receiving cover; a plurality of material leaking holes are uniformly distributed at the bottom of the circular material receiving groove in a penetrating manner, and the inner part of the circular material receiving groove is communicated with the inner part of the cover of the material receiving cover through the material leaking holes; the vibration motor is fixedly arranged on a fixed plate arranged at the inner ring of the circular receiving groove.
Furthermore, the elastic support assembly comprises a plurality of transverse support springs uniformly distributed around the annular material receiving groove and a plurality of vertical support springs uniformly distributed around the annular material receiving groove, and the transverse support springs and the vertical support springs are alternately arranged; the annular frame comprises a horizontal annular plate surrounding the annular receiving groove and a vertical annular plate surrounding the annular receiving groove, and the vertical section of the annular frame is L-shaped; one end of the transverse supporting spring is fixedly connected with the side surface of the outer ring of the annular material receiving groove, and the other end of the transverse supporting spring is fixedly connected with the inner side surface of the vertical annular plate; the edge of the outer ring of the circular ring-shaped material receiving groove extends outwards horizontally to form a flanging plate, one end of the vertical supporting spring is fixedly connected with the lower plate surface of the flanging plate, and the other end of the vertical supporting spring is fixedly connected with the upper plate surface of the horizontal ring-shaped plate.
Further, the sand feeding device comprises a sand bin, a sand screw conveyor and a sand hopper, wherein the sand screw conveyor can convey sand in the sand bin to the sand hopper; the cement feeding device comprises a cement bin, a cement spiral conveyor and a cement hopper, wherein the cement spiral conveyor can convey cement in the cement bin to the cement hopper; the gravel feeding device comprises a gravel bin, a gravel spiral conveyor and a gravel hopper, wherein the gravel spiral conveyor can convey gravel in the gravel bin to the gravel hopper; the discharge end of the sand hopper and the discharge end of the cement hopper are respectively arranged corresponding to the notch of the circular receiving groove.
Furthermore, the sand, mud and gravel mixing device comprises an upper mixing box and a lower mixing box which are integrally formed, the upper mixing box is cylindrical, the lower mixing box is in an inverted cone shape, and a detachable sealing cover is arranged at a lower box opening of the lower mixing box; the sand, mud and gravel mixing device further comprises a stirring mechanism, wherein the stirring mechanism comprises a second driving motor, a shaft rod in driving connection with the second driving motor and a conical helical blade spirally arranged on the shaft rod; the second driving motor is positioned in the upper mixing box, a conical cover covers the upper mixing box, the tip end of the conical cover is over against a lower end discharging pipe opening of the material guide pipe, and the lower end discharging pipe opening of the material guide pipe extends into the upper mixing box; the conical helical blade is positioned in the lower mixing box, and the outline of the conical helical blade is matched with the shape of the lower mixing box.
Further, under the state that the second driving motor drives the shaft lever to rotate positively and drives the conical helical blade to rotate, the conical helical blade continuously conveys and stirs sand, cement and gravel in the lower mixing box upwards; and under the state that the second driving motor drives the shaft lever to rotate reversely and drives the conical helical blade to rotate, the conical helical blade conveys sand, cement and gravel downwards in the lower mixing box and discharges the sand, the cement and the gravel from a lower box opening of the lower mixing box.
Furthermore, the gravel screening spiral guide chute is spirally arranged around the guide pipe, and a plurality of screening holes are uniformly distributed at the bottom of the gravel screening spiral guide chute in a penetrating manner; the upper end of the feeding input of the gravel screening spiral guide chute is arranged corresponding to the discharge end of the gravel hopper, the lower end of the discharge output of the gravel screening spiral guide chute is connected with an unqualified gravel guide chute, and the material output end of the unqualified gravel guide chute extends to a range which exceeds the projection of the upper box opening of the upper mixing box in the vertical direction.
Furthermore, the gravel screening spiral guide chute is positioned right above an upper box opening of the upper mixing box, and the projection of the gravel screening spiral guide chute in the vertical downward direction forms a non-overlapping circular ring falling into the range enclosed by the upper box opening of the mixing box; the edge of the conical cover is spaced from the inner wall of the upper mixing box, and the projection of the gravel screening spiral guide chute in the vertical downward direction is within the spacing.
A production method of a concrete production system comprises the following specific steps:
the method comprises the following steps: starting a first driving motor and a vibrating motor, wherein the first driving motor drives the annular material receiving groove to rotate through tooth transmission, and the vibrating motor drives the whole annular material receiving groove to vibrate;
step two: the sand in the sand bin is conveyed to the sand hopper through the sand spiral conveyor, the cement in the cement bin is conveyed to the cement hopper through the cement spiral conveyor, the sand in the sand hopper and the cement in the cement hopper gradually fall into the annular receiving groove, and the sand and the cement falling into the annular receiving groove are stacked mutually due to the fact that the annular receiving groove is in a rotating state, so that lamination mixing is achieved; then, sand and cement fall into the material receiving cover from the material leaking hole, because the lower half part of the material receiving cover is gradually contracted, the sand and the cement collide with the inner wall of the material receiving cover in a contracted state, the sand and the cement are mixed again in the collision process, then the sand and the cement are gathered together and fall into the material guide pipe, the sand and the cement discharged from the material guide pipe are shunted by the conical cover, and then fall into the lower mixing box;
step three: gravel in the gravel material bin can be conveyed to the gravel hopper through the gravel spiral conveyor, the gravel in the gravel hopper gradually falls into the gravel screening spiral guide chute, the gravel rolls along the gravel screening spiral guide chute under the pushing of the self gravity and the impact of subsequent gravel, the gravel meeting the screening conditions of the screening holes falls into the lower mixing box, the gravel not meeting the screening conditions of the screening holes is unqualified gravel, and the unqualified gravel is led out through the unqualified gravel guide chute;
step four: a second driving motor is started, the second driving motor drives the shaft lever to rotate forwards and drives the conical helical blade to rotate, and the rotating conical helical blade continuously conveys and stirs sand, cement and gravel in the lower mixing box upwards to realize the mixing of the sand, the cement and the gravel;
step five: opening the sealing cover, simultaneously opening a second driving motor, driving the shaft lever to rotate reversely by the second driving motor and driving the conical helical blade to rotate, and downwards conveying sand, cement and gravel in the lower mixing box by the rotating conical helical blade and discharging the sand, cement and gravel to the concrete mixer from a lower box opening of the lower mixing box;
step six: and adding water into the concrete mixer, and then starting the concrete mixer to fully mix the sand, the cement and the gravel to form the concrete.
Has the advantages that: the concrete production system and the production method thereof have the following beneficial effects:
1) before the concrete is mixed and stirred by using the concrete mixer, the sand and the cement are mixed, and then the sand, the cement and the gravel are mixed, so that the sand, the cement and the gravel conveyed into the concrete mixer are uniformly mixed, the stirring time of the concrete mixer can be greatly shortened, the mixing uniformity of all raw materials of the concrete is ensured, and the quality grade of the concrete is greatly improved;
2) when the sand and cement mixing device is used for mixing sand and cement, the cement and sand are sequentially subjected to laminated mixing and collision mixing, so that the sand and the cement are further mixed more uniformly;
3) when the sand, the cement and the gravel are mixed, the sand and the cement are mixed firstly, then the sand, the cement and the gravel are mixed, the operation sequence is reasonable, the influence on the mixing of the sand and the cement caused by the addition of the gravel is avoided while the uniform mixing of the sand and the cement is ensured, and the uniformity of the mixing of the sand, the cement and the gravel is ensured;
4) the gravel screening spiral guide chute that sets up can carry out abundant screening to the gravel, and the size of the gravel that contains in the assurance concrete is even, improves the quality grade of concrete, and the unqualified gravel guide chute that sets up moreover can in time derive unqualified gravel, avoids it to pile up and drops to mix in qualified gravel.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a sand-mud mixing device;
FIG. 3 is a half sectional view of the sand and mud mixing device;
FIG. 4 is a schematic structural view of sand and cement entering a sand-mud-gravel mixing device from a material guide pipe;
FIG. 5 is a schematic structural view of gravel entering a sand-mud-gravel mixing device after being screened by a gravel screening spiral guide chute; a
FIG. 6 is a schematic structural diagram of a sand, cement and gravel mixing device for mixing sand, cement and gravel;
FIG. 7 is a schematic structural diagram of a sand, cement and gravel mixing device for discharging mixed sand, cement and gravel;
FIG. 8 is a schematic structural view of a gravel screening spiral guide chute and an unqualified gravel guide chute;
fig. 9 is a schematic top view of fig. 8.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1, the concrete production system comprises a sand feeding device 1, a cement feeding device 2, a gravel feeding device 3, a sand-mud mixing device 4, a gravel screening spiral guide chute 5, a sand-mud-gravel mixing device 7 and a concrete mixer 9; the sand feeding device 1 and the cement feeding device 2 are symmetrically arranged about a sand-mud mixing device 4, the sand feeding device 1 can feed raw material sand required by concrete to the sand-mud mixing device 4, the cement feeding device 2 can feed raw material cement required by concrete to the sand-mud mixing device 4, and the sand-mud mixing device 4 can mix the fed sand with the fed cement; the sand-mud-gravel mixing device 7 is arranged right below the sand-mud mixing device 4, the sand-mud mixing device 4 can discharge the sand and the cement mixed in the sand-mud-gravel mixing device 7, the gravel feeding device 3 can sieve the raw material gravel required by the concrete through the gravel sieving spiral guide chute 5 and then supply the raw material gravel to the sand-mud-gravel mixing device 7, and the sand-mud-gravel mixing device 7 can mix the sand and the cement which are mixed with the gravel; the concrete mixer 9 is arranged right below the sand and mud mixing device 4, and the concrete mixer 9 can mix the mixed sand, cement and gravel after adding water to form concrete; before the concrete is mixed and stirred by using the concrete mixer 9, the sand and the cement are mixed firstly, and then the sand, the cement and the gravel are mixed, so that the sand, the cement and the gravel conveyed into the concrete mixer 9 are uniformly mixed, the mixing time of the concrete mixer 9 can be greatly shortened, the mixing uniformity of each raw material of the concrete is ensured, and the quality grade of the concrete is greatly improved; moreover, when the sand, the cement and the gravel are mixed, the sand and the cement are mixed firstly, and then the sand, the cement and the gravel are mixed, so that the operation sequence is reasonable, the influence on the mixing of the sand and the cement caused by the addition of the gravel is avoided while the uniform mixing of the sand and the cement is ensured, and the uniformity of the mixing of the sand, the cement and the gravel is ensured; supposing that if the sand, the cement and the stones are mixed simultaneously, the three materials are not mixed thoroughly and uniformly because the blocking effect of the stones is large, so that the mode of firstly mixing the sand and the cement and then adding the gravels to mix the sand, the cement and the gravels is very necessary and reasonable.
As shown in fig. 1, the sand feeding device 1 includes a sand silo 11, a sand screw conveyor 12 and a sand hopper 13, wherein the sand screw conveyor 12 can convey sand in the sand silo 11 to the sand hopper 13; the cement feeding device 2 comprises a cement bin 21, a cement spiral conveyor 22 and a cement hopper 23, wherein the cement spiral conveyor 22 can convey cement in the cement bin 21 to the cement hopper 23; the gravel-feeding device 3 comprises a gravel bin 31, a gravel screw conveyor 32 and a gravel hopper 33, wherein the gravel screw conveyor 32 can convey gravel in the gravel bin 31 to the gravel hopper 33; the discharge end of the sand hopper 13 and the discharge end of the cement hopper 23 are respectively arranged corresponding to the notch of the circular receiving groove 41.
As shown in fig. 2, the sand-mud mixing device 4 comprises a circular ring-shaped receiving groove 41, an elastic supporting component 42, a circular frame 43, a receiving cover 44, a material guiding pipe 45, a first driving motor 46 and a vibrating motor 47; the annular material receiving groove 41 is elastically supported and arranged on an annular frame 43 through an elastic supporting assembly 42, annular teeth 433 are arranged on the annular frame 43 in a surrounding mode, a driving end of the first driving motor 46 is connected with a gear 461 in a driving mode, and the gear 461 is in tooth transmission connection with the annular teeth 433; the receiving cover 44 is connected and arranged at the bottom edge of the circular receiving groove 41, the upper half part of the receiving cover 44 is cylindrical, the lower half part of the receiving cover 44 is gradually contracted, and the material guide pipe 45 is communicated with a contraction port of the receiving cover 44; a plurality of material leaking holes 411 are uniformly distributed at the bottom of the circular material receiving groove 41 in a penetrating manner, and the inner part of the circular material receiving groove 41 is communicated with the inner part of the material receiving cover 44 through the material leaking holes 411; the vibration motor 47 is fixedly arranged on a fixing plate 412 arranged at the inner ring of the circular ring-shaped receiving groove 41; the first driving motor 46 drives the annular material receiving groove 41 to rotate through tooth transmission, so that sand falling into the annular material receiving groove 41 from the sand hopper 13 and cement falling into the annular material receiving groove 41 from the cement hopper 23 are stacked, and lamination mixing is realized; moreover, because the latter half of receiving the material cover 44 is the shrink form gradually, then sand and cement that fall into in receiving the material cover 44 from hourglass material hole 411 can be the inner wall that contracts the form with receiving the material cover 44 and bump, realize the collision and mix, further make sand and cement mixed more even.
As shown in fig. 2 and fig. 3, the elastic support assembly 42 includes a plurality of horizontal support springs 421 uniformly distributed around the circular ring-shaped material receiving slot 41 and a plurality of vertical support springs 422 uniformly distributed around the circular ring-shaped material receiving slot 41, and the horizontal support springs 421 and the vertical support springs 422 are alternately arranged; the annular frame 43 comprises a horizontal annular plate 431 surrounding the annular receiving groove 41 and a vertical annular plate 432 surrounding the annular receiving groove 41, and the vertical section of the annular frame 43 is L-shaped; one end of the transverse supporting spring 421 is fixedly connected with the outer ring side surface of the annular receiving groove 41, and the other end of the transverse supporting spring 421 is fixedly connected with the inner side surface of the vertical annular plate 432; the edge of the outer ring of the circular material receiving groove 41 extends outwards horizontally to form a flanging plate 413, one end of the vertical supporting spring 422 is fixedly connected with the lower plate surface of the flanging plate 413, the other end of the vertical supporting spring 422 is fixedly connected with the upper plate surface of the horizontal circular plate 431, and the circular material receiving groove 41 is enabled to vibrate accordingly when the vibration motor 47 is started to vibrate, so that sand and cement are prevented from being blocked in the circular material receiving groove 41; the horizontal supporting springs 421 and the vertical supporting springs 422 are reasonably arranged, so that the vibration uniformity of the circular ring-shaped receiving groove 41 is ensured.
As shown in fig. 4, the gravel-sand mixing device 7 comprises an upper mixing box 71 and a lower mixing box 72 which are integrally formed, wherein the upper mixing box 71 is cylindrical, the lower mixing box 72 is in an inverted conical shape, and a detachable sealing cover 721 is arranged at the lower port of the lower mixing box 72; the gravel and sand mixing device 7 further comprises a stirring mechanism 73, wherein the stirring mechanism 73 comprises a second driving motor 731, a shaft 732 in driving connection with the second driving motor 731, and a conical helical blade 733 spirally arranged on the shaft 732; the second driving motor 731 is positioned in the upper mixing box 71, a conical cover 8 is covered on the upper mixing box, the tip end of the conical cover 8 is over against a lower end discharge pipe opening of the material guiding pipe 45, and the lower end discharge pipe opening of the material guiding pipe 45 extends into the upper mixing box 71; the conical helical blade 733 is located in the lower mixing box 72, and the profile of the conical helical blade 733 is adapted to the shape of the lower mixing box 72.
As shown in fig. 6, when the second driving motor 731 drives the shaft 732 to rotate forward and drives the conical helical blade 733 to rotate, the conical helical blade 733 continuously conveys and stirs sand, cement, and gravel in the lower mixing box 72 upward, and during continuous conveying, the raw materials at the lower part of the lower mixing box 72 are conveyed to the upper part of the lower mixing box 72, and the raw materials at the two sides of the conical helical blade 733 are filled to the hollow position of the middle part, so that the raw materials are mixed and stirred.
As shown in fig. 7, when the second driving motor 731 drives the shaft 732 to rotate in reverse and drives the conical screw 733 to rotate, the conical screw 733 transports sand, cement, and gravel downward from the lower mixing box 72 and discharges the sand, cement, and gravel from the lower outlet of the lower mixing box 72.
As shown in fig. 1 and 8, the gravel screening spiral guide chute 5 is spirally arranged around the guide pipe 45, and a plurality of screening holes 53 are uniformly distributed at the bottom of the gravel screening spiral guide chute 5; the feeding input upper end 51 of the gravel screening spiral guide chute 5 corresponds to the discharge end of the gravel hopper 33, the discharge output lower end 52 of the gravel screening spiral guide chute 5 is connected with an unqualified gravel guide chute 6, the material output end of the unqualified gravel guide chute 6 extends to the enclosing range of the upper box opening of the upper mixing box 71 in the projection in the vertical direction, the gravel screening spiral guide chute 5 can fully screen gravel, the size of gravel contained in concrete is ensured to be uniform, the quality grade of the concrete is improved, the unqualified gravel guide chute 6 can timely guide out the unqualified gravel, and the gravel is prevented from being accumulated, dropped and mixed into qualified gravel.
As shown in fig. 5 and fig. 9, the gravel screening spiral guide chute 5 is positioned right above the upper port of the upper mixing box 71, and the projection of the gravel screening spiral guide chute in the vertical downward direction forms a non-overlapping ring falling into the range enclosed by the upper port of the mixing box 71; the edge of the conical cover 8 is spaced from the inner wall of the upper mixing box 71 by a distance 80, and the projection of the gravel screening spiral guide chute 5 in the vertical downward direction is within the distance 80; the gravel screening spiral guide chute 5 is reasonable in structure and spiral length, qualified gravel cannot repeatedly fall onto the gravel screening spiral guide chute 5, the falling range coverage interval 80 of the qualified gravel falling is guaranteed, and the qualified gravel falling cannot smash the conical cover 8 and cannot fall outside the mixing box 71.
A production method of a concrete production system comprises the following specific steps:
the method comprises the following steps: starting a first driving motor 46 and a vibrating motor 47, wherein the first driving motor 46 drives the annular receiving groove 41 to rotate through tooth transmission, and the vibrating motor 47 drives the whole annular receiving groove 41 to vibrate;
step two: the sand in the sand bin 11 is conveyed to the sand hopper 13 through the sand spiral conveyor 12, the cement in the cement bin 21 is conveyed to the cement hopper 23 through the cement spiral conveyor 22, the sand in the sand hopper 13 and the cement in the cement hopper 23 gradually fall into the annular receiving groove 41, and the sand and the cement falling into the annular receiving groove 41 are stacked mutually due to the fact that the annular receiving groove 41 is in a rotating state, so that lamination mixing is achieved; then, sand and cement fall into the material receiving cover 44 from the material leaking hole 411, because the lower half part of the material receiving cover 44 is gradually contracted, the sand and the cement collide with the inner wall of the material receiving cover 44 in a contracted state, the sand and the cement are mixed again in the collision process, then the sand and the cement are gathered and fall into the material guide pipe 45, the sand and the cement discharged from the material guide pipe 45 are shunted by the conical cover 8, and then fall into the lower mixing box 72;
step three: gravel in the gravel material bin 31 can be conveyed to the gravel hopper 33 through the gravel spiral conveyor 32, gravel in the gravel hopper 33 gradually falls into the gravel screening spiral guide chute 5, the gravel rolls along the gravel screening spiral guide chute 5 under the pushing of the gravity of the gravel and the impact of subsequent gravel, gravel meeting the screening conditions of the screening holes 53 falls into the lower mixing box 72, gravel not meeting the screening conditions of the screening holes 53 is unqualified gravel, and the unqualified gravel is led out through the unqualified gravel guide chute 6;
step four: the second driving motor 731 is started, the second driving motor 731 drives the shaft lever 732 to rotate forward and drives the conical helical blade 733 to rotate, and the rotating conical helical blade 733 continuously conveys and stirs sand, cement and gravel in the lower mixing box 72 upwards to realize mixing of the sand, the cement and the gravel;
step five: the sealing cover 721 is opened, and simultaneously the second driving motor 731 is opened, the second driving motor 731 drives the shaft 732 to rotate reversely and drives the conical helical blade 733 to rotate, and the rotating conical helical blade 733 conveys sand, cement and gravel downwards in the lower mixing box 72 and discharges the sand, cement and gravel to the concrete mixer 9 from the lower box opening of the lower mixing box 72;
step six: water is added into the concrete mixer 9, and then the concrete mixer 9 is started to fully mix the sand, the cement and the gravel to form the concrete.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (7)
1. A concrete production system, characterized by: comprises a sand feeding device (1), a cement feeding device (2), a gravel feeding device (3), a sand-mud mixing device (4), a gravel screening spiral guide chute (5), a sand-mud-gravel mixing device (7) and a concrete mixer (9); the sand feeding device (1) and the cement feeding device (2) are symmetrically arranged relative to the sand-mud mixing device (4), the sand feeding device (1) can supply raw material sand required by concrete to the sand-mud mixing device (4), the cement feeding device (2) can supply raw material cement required by concrete to the sand-mud mixing device (4), and the sand-mud mixing device (4) can mix the supplied sand with the supplied cement; the sand-mud-gravel mixing device (7) is arranged right below the sand-mud mixing device (4), the sand-mud mixing device (4) can discharge the mixed sand and cement to the sand-mud-gravel mixing device (7), the gravel feeding device (3) can screen raw material gravel required by concrete through the gravel screening spiral guide chute (5) and then supply the raw material gravel to the sand-mud-gravel mixing device (7), and the sand-mud-gravel mixing device (7) can mix the mixed sand and cement with gravel; the concrete mixer (9) is arranged right below the sand-mud mixing device (4), and the concrete mixer (9) can mix the mixed sand, cement and gravel after adding water to form concrete;
the sand-mud mixing device (4) comprises a circular receiving groove (41), an elastic supporting component (42), an annular frame (43), a receiving cover (44), a material guide pipe (45), a first driving motor (46) and a vibrating motor (47); the circular material receiving groove (41) is arranged on an annular frame (43) in an elastic supporting mode through an elastic supporting assembly (42), annular teeth (433) are arranged on the annular frame (43) in a surrounding mode, a driving end of the first driving motor (46) is connected with a gear (461) in a driving mode, and the gear (461) is in tooth transmission connection with the annular teeth (433); the receiving cover (44) is connected and arranged at the bottom edge of the circular receiving groove (41), the upper half part of the receiving cover (44) is cylindrical, the lower half part of the receiving cover (44) is gradually contracted, and the guide pipe (45) is communicated with a contraction port of the receiving cover (44); a plurality of material leaking holes (411) are uniformly distributed at the bottom of the circular material receiving groove (41) in a penetrating manner, and the inside of the circular material receiving groove (41) is communicated with the inside of the material receiving cover (44) through the material leaking holes (411); the vibration motor (47) is fixedly arranged on a fixing plate (412) arranged at the inner ring of the circular ring-shaped material receiving groove (41);
the elastic supporting assembly (42) comprises a plurality of transverse supporting springs (421) uniformly distributed around the circular ring-shaped material receiving groove (41) and a plurality of vertical supporting springs (422) uniformly distributed around the circular ring-shaped material receiving groove (41), and the transverse supporting springs (421) and the vertical supporting springs (422) are alternately arranged; the annular frame (43) comprises a horizontal annular plate (431) surrounding the annular receiving groove (41) and a vertical annular plate (432) surrounding the annular receiving groove (41), and the vertical section of the annular frame (43) is L-shaped; one end of the transverse supporting spring (421) is fixedly connected with the side surface of the outer ring of the annular receiving groove (41), and the other end of the transverse supporting spring (421) is fixedly connected with the inner side surface of the vertical annular plate (432); the outer lane edge level that the ring shape connects silo (41) is outwards extended to have flanging plate (413), the one end of vertical support spring (422) and the lower face fixed connection of flanging plate (413), the other end of vertical support spring (422) and the last face fixed connection of horizontal annular plate (431).
2. A concrete production system according to claim 1, wherein: the sand feeding device (1) comprises a sand bin (11), a sand screw conveyor (12) and a sand hopper (13), wherein the sand screw conveyor (12) can convey sand in the sand bin (11) to the sand hopper (13); the cement feeding device (2) comprises a cement bin (21), a cement spiral conveyor (22) and a cement hopper (23), wherein the cement spiral conveyor (22) can convey cement in the cement bin (21) to the cement hopper (23); the gravel feeding device (3) comprises a gravel bin (31), a gravel spiral conveyor (32) and a gravel hopper (33), wherein the gravel spiral conveyor (32) can convey gravel in the gravel bin (31) to the gravel hopper (33); the discharge end of the sand hopper (13) and the discharge end of the cement hopper (23) are respectively arranged corresponding to the notch of the circular material receiving groove (41).
3. A concrete production system according to claim 2, wherein: the sand-gravel mixing device (7) comprises an upper mixing box (71) and a lower mixing box (72) which are integrally formed, the upper mixing box (71) is cylindrical, the lower mixing box (72) is in an inverted cone shape, and a detachable sealing cover (721) is arranged at the lower box opening of the lower mixing box (72); the sand-gravel mixing device (7) further comprises a stirring mechanism (73), wherein the stirring mechanism (73) comprises a second driving motor (731), a shaft rod (732) in driving connection with the second driving motor (731), and a conical spiral blade (733) spirally arranged on the shaft rod (732); the second driving motor (731) is positioned in the upper mixing box (71), a conical cover (8) is covered on the upper mixing box, the tip end of the conical cover (8) is over against a lower end discharge pipe opening of the material guide pipe (45), and the lower end discharge pipe opening of the material guide pipe (45) extends into the upper mixing box (71); the conical helical blade (733) is positioned in the lower mixing box (72), and the profile of the conical helical blade (733) is matched with the shape of the lower mixing box (72).
4. A concrete production system according to claim 3, wherein: the second driving motor (731) drives the shaft lever (732) to rotate forward and drives the conical helical blade (733) to rotate, and the conical helical blade (733) continuously conveys and stirs sand, cement and gravel in the lower mixing box (72) upwards; the second driving motor (731) drives the shaft lever (732) to rotate reversely and drives the conical helical blade (733) to rotate, and the conical helical blade (733) conveys sand, cement and gravel downwards in the lower mixing box (72) and discharges the sand, cement and gravel from a lower box opening of the lower mixing box (72).
5. A concrete production system according to claim 4, wherein: the gravel screening spiral guide chute (5) is spirally arranged around the guide pipe (45), and a plurality of screening holes (53) are uniformly distributed at the bottom of the gravel screening spiral guide chute (5) in a penetrating manner; the feeding input upper end (51) of the gravel screening spiral guide chute (5) is arranged corresponding to the discharging end of the gravel hopper (33), the discharging output lower end (52) of the gravel screening spiral guide chute (5) is connected with an unqualified gravel guide chute (6), and the feeding output end of the unqualified gravel guide chute (6) extends to a range which exceeds the projection of the upper box opening of the upper mixing box (71) in the vertical direction.
6. A concrete production system according to claim 5, wherein: the gravel screening spiral guide chute (5) is positioned right above an upper box opening of the upper mixing box (71), and the projection of the gravel screening spiral guide chute in the vertical downward direction forms a non-overlapping circular ring falling into the range enclosed by the upper box opening of the upper mixing box (71); the edge of the conical cover (8) is spaced from the inner wall of the upper mixing box (71) by a distance (80), and the projection of the gravel screening spiral guide chute (5) in the vertical downward direction is within the distance (80).
7. A method of producing a concrete production system according to claim 6, wherein: the method comprises the following specific steps:
the method comprises the following steps: starting a first driving motor (46) and a vibrating motor (47), wherein the first driving motor (46) drives a circular ring-shaped material receiving groove (41) to rotate through tooth transmission, and the vibrating motor (47) drives the whole circular ring-shaped material receiving groove (41) to vibrate;
step two: the sand in the sand bin (11) is conveyed to the sand hopper (13) through the sand spiral conveyor (12), cement in the cement bin (21) is conveyed to the cement hopper (23) through the cement spiral conveyor (22), sand in the sand hopper (13) and cement in the cement hopper (23) gradually fall into the circular ring-shaped material receiving groove (41), and the sand falling into the circular ring-shaped material receiving groove (41) is stacked with the cement due to the fact that the circular ring-shaped material receiving groove (41) is in a rotating state, and lamination mixing is achieved; then, sand and cement fall into the material receiving cover (44) from the material leaking hole (411), because the lower half part of the material receiving cover (44) is gradually contracted, the sand and the cement collide with the inner wall of the material receiving cover (44) in a contracted state, the sand and the cement are mixed again in the collision process, then the sand and the cement are gathered and fall into the material guide pipe (45), the sand and the cement discharged from the material guide pipe (45) are shunted by the conical cover (8), and then fall into the lower mixing box (72);
step three: gravel in the gravel bin (31) can be conveyed to a gravel hopper (33) through a gravel spiral conveyor (32), gravel in the gravel hopper (33) gradually falls into a gravel screening spiral guide chute (5), gravel rolls along the gravel screening spiral guide chute (5) under the pushing of self gravity and the impact of subsequent gravel, gravel meeting screening conditions of the screening holes (53) falls into a lower mixing box (72), gravel not meeting the screening conditions of the screening holes (53) is unqualified gravel, and the unqualified gravel is led out through an unqualified gravel guide chute (6);
step four: a second driving motor (731) is started, the second driving motor (731) drives a shaft lever (732) to rotate forward and drives a conical helical blade (733) to rotate, and the rotating conical helical blade (733) continuously conveys and stirs sand, cement and gravel in a lower mixing box (72) upwards to realize mixing of the sand, the cement and the gravel;
step five: opening the sealing cover (721), simultaneously opening the second driving motor (731), wherein the second driving motor (731) drives the shaft lever (732) to rotate reversely and drives the conical helical blade (733) to rotate, and the rotating conical helical blade (733) conveys sand, cement and gravel downwards in the lower mixing box (72) and discharges the sand, cement and gravel to the concrete mixer (9) from a lower box opening of the lower mixing box (72);
step six: adding water into the concrete mixer (9), and then starting the concrete mixer (9) to fully mix the sand, the cement and the gravel to form the concrete.
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| CN109914416A (en) * | 2019-04-04 | 2019-06-21 | 三门核电有限公司 | A kind of concreting technique of suitable marine construction of structures construction |
| CN111495745B (en) * | 2020-04-20 | 2022-10-14 | 重庆化工职业学院 | Saw-dust transportation separating centrifuge based on PLC control |
| CN113601713B (en) * | 2021-08-05 | 2023-07-25 | 涿州市志宏星业建材有限公司 | Concrete production system of screening material |
| CN113733344B (en) * | 2021-08-13 | 2022-10-28 | 浙江长兴市政建设有限公司 | Commercial concrete production system and production method thereof |
| CN114474368B (en) * | 2022-02-25 | 2023-09-05 | 安吉龙港混凝土制品有限公司 | Concrete processing equipment and production process thereof |
| CN115609753B (en) * | 2022-12-19 | 2023-03-10 | 德州润德混凝土有限公司 | Preparation method of self-curing concrete |
| CN116099982B (en) * | 2023-04-10 | 2023-06-23 | 江苏长友特钢机械有限公司 | Large-scale metal part precision casting molding sand treatment equipment |
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Effective date of registration: 20201216 Address after: Xigang village group, Fenglin Village, Xiaohuang Town, Dongxiang District, Fuzhou City, Jiangxi Province Applicant after: Jiangxi Xinyuan Concrete Co.,Ltd. Address before: Daxing village, Hailin line, Baochang Town, Haimen City, Nantong City, Jiangsu Province, 226100 Applicant before: Zhao Yunhong |
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