CN108162197B - Environment-friendly molding sand Dan Songliao system for concrete production - Google Patents
Environment-friendly molding sand Dan Songliao system for concrete production Download PDFInfo
- Publication number
- CN108162197B CN108162197B CN201810230152.9A CN201810230152A CN108162197B CN 108162197 B CN108162197 B CN 108162197B CN 201810230152 A CN201810230152 A CN 201810230152A CN 108162197 B CN108162197 B CN 108162197B
- Authority
- CN
- China
- Prior art keywords
- conveyor
- bin
- sand
- conveying
- pipe gallery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000003110 molding sand Substances 0.000 title description 3
- 239000004576 sand Substances 0.000 claims abstract description 89
- 238000003860 storage Methods 0.000 claims abstract description 85
- 239000004575 stone Substances 0.000 claims abstract description 78
- 238000012546 transfer Methods 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 49
- 238000007599 discharging Methods 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims description 67
- 239000007921 spray Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000004568 cement Substances 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000002156 mixing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses an environment-friendly sand and stone feeding system for concrete production, which comprises a classified material receiving and unloading unit, a classified material conveying and warehouse returning unit, a storage bin and a concrete mixer feeding unit; the storage bin comprises a sand bin and a stone bin; the classifying, receiving and unloading unit comprises an unloading transfer bin; the classifying, conveying and warehousing unit comprises a first conveying pipe gallery; the concrete mixer feeding unit comprises a second conveying pipe gallery for conveying sand and/or stone falling from the storage bin into the concrete mixer; the first conveying pipe gallery and the second conveying pipe gallery comprise a conveyor and a closed pipe gallery used for shielding a working surface of the conveyor, and two ends of the pipe gallery are correspondingly connected with a discharging transfer bin and a storage bin or are correspondingly connected with a storage bin and a concrete mixer. The device is used for realizing dust-free conveying in the concrete production process so as to adapt to the requirement of environmental protection.
Description
Technical Field
The invention relates to the technical field of feeding devices for concrete production, in particular to an environment-friendly sand stone feeding system for concrete production.
Background
The raw materials required for preparing concrete include: water, cement, sand, stone, additives, etc.; the cement is powder, and the characteristics of easy consolidation due to moisture are achieved in a sealed storage mode, and the feeding process is achieved by utilizing a conveying mode of combining a spiral lifter and a pipeline, and the process meets the existing environmental protection requirement. Heretofore, the feeding process of sand and stone in the concrete preparation process is not very concerned in the industry, and because dust pollution is accompanied in the feeding process of sand and stone, especially the entering unloading and open stacking storage of sand and stone, an environment-friendly sand and stone batching system should be provided to balance between environment protection and production under the circumstance that the environment protection standard is improved.
Chinese patent document CN105965699a, published in 2016, 9 and 28, describes a set of concrete production equipment comprising: DCS central control system and remote monitoring system, DCS central control system carry out concrete production through control signal control aggregate production line, cement powdered ore production line, cement kiln treatment mud equipment, raw material treatment domestic waste equipment, concrete mixing plant equipment, remote monitoring system carry out concrete production through electric connection control aggregate production line, cement powdered ore production line, cement kiln treatment mud equipment, raw material treatment domestic waste equipment, concrete mixing plant equipment. The technical scheme is based on an ideal state, a set of concrete production equipment is established based on the whole process of concrete production such as household garbage energy supply, ore acquisition, raw material production, raw material transportation, concrete stirring and the like, but the technical scheme is well known that the ore distribution is divided into regions, the household garbage is distributed in a surface area, and a conveyor belt cannot be infinitely long, and exceeds the limit of space; moreover, the concrete prepared is time-limited, the amount of concrete is limited, and the technical scheme exceeds the time limit.
Chinese patent document CN104626362a, which is disclosed in 5 months and 20 days 2015, describes a large-sized concrete cement and aggregate mixing conveyor, which consists of auxiliary transmission rollers, a cement aggregate bin, a sand aggregate bin, a stone aggregate bin, a frame, transmission rollers, a transmission belt, a motor and speed change system, a machine body foundation, a flow weighing control flashboard, a flow weighing controller and a V-shaped conveyor belt; the lower part of the frame is provided with a machine body foundation, the upper part of the frame is respectively provided with a cement aggregate bin, a sand aggregate bin and a stone aggregate bin, and the lower parts of the cement aggregate bin, the sand aggregate bin and the stone aggregate bin are respectively provided with a flow weighing control flashboard with a flow weighing controller. In the technical scheme, a conveyor belt is adopted to collect and transport the raw materials above the conveyor belt, namely the cement storage bin, the sand aggregate bin and the pebble aggregate bin, to the concrete stirring equipment, and the feeding mode of cement in the technical scheme can not meet the current requirements.
The Chinese patent document CN201214278Y published on 4 months and 1 days in 2009 describes a mortar pre-stirring type continuous cement concrete stirring station, which comprises a plurality of continuous stone batching machines with weighing sensors, a plurality of continuous sand batching machines with weighing sensors, a mortar pre-stirring machine, a cement continuous batching machine, a powder continuous batching machine, a transfer hopper, a lifting conveyor belt and a secondary stirrer, wherein the lower part of the continuous stone batching machine is provided with the stone batching belt which is continuously and uniformly conveyed onto the horizontal conveyor belt at a certain speed and an accurate dosage according to proportioning requirements, the lower part of the continuous sand batching machine is provided with the sand batching belt, the horizontal conveyor belt is paved below an outlet of the pre-stirring machine, the pre-stirring machine is arranged below a discharge end of the sand batching belt, a plurality of cement storage bins are arranged above the cement continuous batching machine, a plurality of powder storage bins are arranged above the cement continuous batching machine, the lower part of the cement continuous batching machine and the continuous batching machine is provided with the lifting conveyor belt which is used for conveying cement and powder into the pre-stirring machine at a certain speed, the accurate dosage is continuously and uniformly conveyed into the horizontal conveyor belt, the lower part of the pre-stirring machine is also provided with the horizontal conveyor belt which is arranged below the discharge end of the pre-stirring machine, and the horizontal conveyor belt is also provided with the small conveyor belt which is arranged above the discharge end of the pre-stirring machine. However, researches show that the technical scheme does not consider the existing environmental protection requirement and cannot adapt to the production requirement.
Disclosure of Invention
The invention aims to solve the problems of low production efficiency and serious dust pollution caused by open-air unloading, open-air stacking and transporting of sand in the existing concrete production process.
In order to solve the technical problems, the invention adopts the following technical scheme:
an environmental protection grit feeding system for concrete production is designed, includes: the device comprises a classified material receiving and unloading unit, a classified conveying and warehouse returning unit, a storage warehouse and a concrete mixer feeding unit; the storage bin comprises a sand bin and a stone bin; the classifying, receiving and unloading unit comprises an unloading transfer bin for receiving sand or stones unloaded by the transport vehicle; the classified conveying and warehouse returning unit comprises a first conveying pipe gallery for classifying and returning sand materials or stones in the unloading transfer warehouse into corresponding sand warehouses or stone warehouses; the concrete mixer feeding unit comprises a second conveying pipe gallery for conveying sand and/or stone falling from the storage bin into the concrete mixer; the first conveying pipe gallery and the second conveying pipe gallery comprise a conveyor and a closed pipe gallery used for shielding a working surface of the conveyor, and two ends of the pipe gallery are correspondingly connected with a discharging transfer bin and a storage bin or are correspondingly connected with a storage bin and a concrete mixer.
Preferably, the feed inlets of the storage bins are arranged on the same straight line and are parallel to the direction of the straight line, guide rails are arranged on two sides of the feed inlets, and powered rail cars are arranged on the guide rails; the conveyor of the first conveying pipe gallery comprises a sorting and warehouse-returning conveyor capable of reversing the conveying direction, the sorting and warehouse-returning conveyor is arranged on a powered rail car, and the powered rail car is used for driving the sorting and warehouse-returning conveyor to move along the guide rail so that one end part of the sorting and warehouse-returning conveyor corresponds to a target storage bin for sand or stones conveyed by the sorting and warehouse-returning conveyor. Preferably, a first opening is formed in the upper inclined conveying section of the conveyor and the lower gallery wall of the pipe gallery, the conveyor is a belt conveyor, a left inert wheel and a right inert wheel are arranged at the first opening of the belt conveyor, and a belt of the conveyor is exposed out of the first opening and hung with a tensioning adjusting device moving along a guide rail after being supported and turned by the left inert wheel and the right inert wheel. The tensioning adjustment device moving along the guide rail can provide a suitable tensioning force.
Further, a dust collecting port is further arranged on the lower gallery wall and above the first opening, and a funnel-shaped dust collecting pipe is arranged at the dust collecting port.
Further, a dust collecting pipe is arranged at the first opening, the higher one of the two inert wheels is a hollow wheel, and a strip-shaped hole/groove is arranged on the wheel surface of the hollow wheel. The dust collecting pipe is arranged at the tensioning adjusting device and can shield the belt exposed at the tensioning adjusting device.
Preferably, the unloading transfer bin is a sinking bin, and the sinking bin is provided with an unloading window and a bottom discharge hole for unloading of the transport vehicle.
Further, the bottom discharge hole is a bottom opening of the bottom of the first funnel, a grid plate is arranged at the bottom opening, and the grid plate is lapped or fixed on the surrounding fixed objects of the bottom of the funnel. The effect of grid plate is filtering debris, does not influence leaking down of material when forming the support again, avoids the material that stores in the closed warehouse to be by the bearing of first hopper bottom, avoids dumping the material at the second hopper bottom to strike the second hopper bottom.
Further, a strip-shaped dust shielding curtain is arranged on the discharging window.
Furthermore, a spraying device arranged along the door frame is also arranged on the -shaped door frame of the discharging window.
Preferably, the feed inlets of the storage bins are arranged on the same straight line, and the discharge outlets of the storage bins are also arranged on the same straight line; the first conveying pipe gallery comprises a first conveyor, a tower, a second conveyor and a sorting and returning conveyor, the first conveyor is led out from the side face of the discharging transfer bin, the sorting and returning conveyor is arranged above the discharge port along the connecting line direction of the feed port, and the second conveyor receives the materials conveyed by the first conveyor at the tower and conveys the materials to the sorting and returning conveyor; the included angle between the vertical plane where the axis of the first conveyor is located and the vertical plane where the connecting line of the feeding port is located is 0-45 degrees. The second conveyor is adopted as a transfer conveyor for adjusting the conveying direction of the conveyor, so that the environment-friendly sand and stone feeding system is compact in structure, and the unavailable space influenced by equipment is reduced.
Further, the included angle between the vertical surface where the axis of the first conveyor is located and the vertical surface where the connecting line of the feeding port is located is 0-10 degrees, and the connecting line of the discharging transfer bin, the first conveying pipe gallery, the storage bin, the second conveying pipe gallery and the concrete mixer in sequence forms a shape. At this time, this environment-friendly grit feeding system structure is compactest.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) The classified material receiving and unloading unit and the classified conveying and warehouse returning unit are matched to directly discharge the entering sand materials or stones into the unloading transfer warehouse and convey the entering sand materials or stones to the corresponding storage warehouse through the totally-enclosed first conveying pipe gallery, so that dust pollution caused by open-air storage and secondary material transfer caused by falling of the entering sand materials and stones can be avoided;
(2) Adopt to link up transfer storehouse and storage silo and link up the piping lane of storage silo and concrete mixer and seal the conveyer, can avoid stone, sand to carry the raise dust pollution in-process, more environmental protection.
Drawings
Fig. 1 is a two-view structural diagram of an environment-friendly type sand feeding system for concrete production.
Fig. 2 is a block diagram of a discharge transfer building of an environment-friendly type mortar feeding system for concrete production.
Fig. 3 is a two-view structural diagram of a storage building of an environment-friendly type sand feeding system for concrete production.
Fig. 4 is a schematic diagram of a concrete mixing plant of an environmentally friendly mortar feeding system for concrete production.
Fig. 5 is an enlarged view of a portion of a tower of an environmentally friendly mortar feeding system for concrete production.
Fig. 6 is a block diagram of a first conveyor pipe lane of an environmentally friendly type of masonry feed system for concrete production.
Fig. 7 is a block diagram of a second transfer piping lane of the environment-friendly type sand feeding system for concrete production.
Fig. 8 is a schematic cross-sectional structure of a belt conveyor.
Fig. 9 is a perspective view of a discharge transfer building.
Fig. 10 is a left side view of fig. 9.
Fig. 11 is a sectional view taken along the BB section line in fig. 10.
In the figure, horizon A, discharge transfer building 1, discharge transfer bin 11, first hopper bottom 111, discharge window 112, discharge transfer bin 12, first hopper bottom 121, discharge window 122, discharge transfer bin 13, first hopper bottom 131, discharge window 132, underground space 14, conveyor 21, first conveyor 211, horizontal conveying section 2111, upward-tilting conveying section 2112, inert wheel 2113, second conveyor 212, sorting bin conveyor 213, rail wheel 2131, rail 2132, piping lane 22, storage building 3, storage bin 31, second hopper bottom 311, feed inlet 312, air outlet 313, storage bin 32, second hopper bottom 321, feed inlet 322, air outlet 323, the storage bin 33, the second hopper bottom 331, the feed inlet 332, the air outlet 333, the storage bin 34, the second hopper bottom 341, the feed inlet 342, the air outlet 343, the underground space 35, the upper space 36, the conveyor 41, the fourth conveyor 411, the fifth conveyor 412, the sixth conveyor 413, the seventh conveyor 414, the piping lane 42, the concrete mixing plant 5, the space 51, the concrete mixer 52, the tower 6, the tower space 61, the left inert wheel 71, the right inert wheel 72, the tension adjusting device 73, the lower inert wheel 731, the weight box 732, the guide rail 74, the dust collecting pipe 75, the left inert wheel 81, the right inert wheel 82, the tension adjusting device 83, the lower inert wheel 831, the weight box 832, the guide rail 84, the dust collecting pipe 85.
Detailed Description
The following examples are given to illustrate the invention in detail, but are not intended to limit the scope of the invention in any way.
Example 1:
an environmentally friendly sand Dan Songliao system for concrete production, see fig. 1-11, comprising: the device comprises a classified material receiving and unloading unit, a classified material conveying and returning unit, a storage bin 31, a storage bin 32, a storage bin 33, a storage bin 34 and a concrete mixer feeding unit; the storage bin comprises a sand bin and a stone bin; the classified material receiving and unloading unit comprises a material unloading transfer bin for receiving sand materials or stones unloaded by the transport vehicle, and the classified material conveying and warehousing unit comprises a material unloading transfer bin for classifying the sand materials or stones in the material unloading transfer bin into corresponding sand bins or stone bins; the concrete mixer feeding unit comprises a second conveying pipe gallery for conveying sand and/or stone falling from the storage bin into the concrete mixer; the first conveying pipe gallery comprises a conveyor 21 and a pipe gallery used for shielding the working surface of the conveyor 21, and two ends of the pipe gallery are correspondingly connected with the unloading transfer bin and the storage bin; the second conveying pipe rack comprises a conveyor 41 and a pipe rack for shielding the working surface of the conveyor 41, and two ends of the pipe rack are correspondingly connected with the storage bin and the concrete mixer. In this embodiment, the conveyor is a belt conveyor.
The classifying, collecting and unloading unit is used for receiving and centralizing sand materials or stones discharged by the transport vehicle, and immediately or later transferring the sand materials or stones to the classifying, conveying and warehousing unit, wherein the classifying, conveying and warehousing unit is used for warehousing the sand materials or stones into corresponding storage bins, the classifying, collecting and unloading unit is matched with the classifying, conveying and warehousing unit, so that the classifying and warehousing process of the sand materials or stones after being conveyed to a factory is realized, and the pollution of dust to the environment is inhibited as much as possible in the whole process. In this embodiment, the function of the classified material receiving and unloading unit is realized by adopting the unloading transfer bin 11, the unloading transfer bin 12 and the unloading transfer bin 13, wherein the unloading transfer bin 11 is used as a sand material transfer bin, and the unloading transfer bins 12 and 13 are used as stone material transfer bins. The function of classifying, conveying and warehouse returning units is realized by adopting the totally-enclosed first output pipe gallery.
Referring to fig. 2, the discharge transfer building 1 is provided with an upper and a lower space. The ground space is a discharge transfer bin 11, a discharge transfer bin 12 and a discharge transfer bin 13, and the discharge transfer bin is used for receiving a transport vehicle loaded with sand or stones for discharge transfer tasks. The outlets of the underground space 14 engage the pipe rack 22 to shield the working surface of the conveyor 21 in the pipe rack, thereby reducing dust emissions. In fig. 2, the partition plates of the discharge relay bin 11, the discharge relay bin 12, the discharge relay bin 13 and the underground space 14 are lower than the horizontal line a, and a first hopper bottom 111, a first hopper bottom 121 or a first hopper bottom 131 for communicating the discharge relay bin with the underground space 14 are respectively installed on the partition plates in each of the discharge relay bin 11, the discharge relay bin 12 or the discharge relay bin 13; one end of the conveyor 21 extends into the underground space 14 and is disposed directly below the bottom openings of the first hopper bottom 111, the first hopper bottom 121, and the first hopper bottom 131, and sand or stone falling from the inside of the first hopper bottom 111, the first hopper bottom 121, or the first hopper bottom 131 can fall onto the conveying surface of the conveyor 21. The front faces of the discharging transfer bins 11, 12 and 13 are respectively provided with a discharging window 112, 122 and 132, the transport vehicle loaded with sand can directly discharge the sand into the sand transfer bins through the discharging window 112, the transport vehicle loaded with stones can directly discharge stones into the stones transfer bins through the discharging window 122 and 132, when the transport vehicle starts to discharge, the first funnel bottom 111, the first funnel bottom 121 or the first funnel bottom 131 corresponding to the discharging transfer bins 11, 12 or 13 is in an open state, the conveyor 21 is in an operating state, and the conveying terminal of the conveyor 21 corresponds to the corresponding sand bin or stone bin to enable the discharged sand or stones to be classified into the storage bins corresponding to the discharge transfer bins. In fig. 2, the discharge window 112, 122 and 132 are provided with a height of 50cm from the ground plane a; the height can play a role in avoiding overflow of sand or stones. The slope angles of the first hopper bottom 111, the second hopper bottom 311 and the second hopper bottom 321 corresponding to the sand materials are 40-60 degrees, the optimal angles are 40 degrees and 41 degrees, the slope angles are slightly larger than the friction angle of the sand, and the top opening and the height of the hopper bottoms can be balanced. The slope angles of the first hopper bottom 121, the first hopper bottom 131, the second hopper bottom 331 and the second hopper bottom 341 corresponding to the stone bin are 35-45 degrees, and are optimally 35 degrees and 36 degrees, and are slightly larger than the friction angle of stones, so that the top opening and the height of the hopper bottoms can be balanced.
In this embodiment, strip-shaped dust curtains (not shown) are hung on the discharging windows 112, 122 and 132, and the strip-shaped dust curtains are usually formed by a plurality of slats which are arranged at the discharging windows and hang down, in which the left and right sides of the slats are preferably stacked with the slats on the adjacent sides. The strip-shaped dust curtain may also be a door curtain formed by arranged strips of wires arranged in a sufficient density. One end of the strip-shaped dust shielding curtain is a free end, and the free end does not affect the unloading operation of the transport vehicle, but can prevent dust in the unloading operation from escaping from the unloading transfer bin 11, the unloading transfer bin 12 or the unloading transfer bin 13 to a certain extent. A spray device (not shown) is also provided along the door frame in the shape of of the discharge window 112, 122, 132, and includes a main water pipe and a plurality of atomizer heads mounted on the main water pipe at a certain interval. The head end of the main water pipe is provided with a stop valve, the tail end of the main water pipe is closed, the main water pipe is connected with a water source (such as tap water) with pressure, when the main water pipe is used for discharging, the stop valve is opened, water in the water source with pressure is sprayed out from the atomizing nozzle through the main water pipe, and atomized water drops and dust can be further subjected to dust fall treatment after meeting; and when the spraying device sprays on the sand material, the water content of the sand material can be adjusted. The spraying device can be provided with a plurality of sets according to the requirement so as to be convenient for only starting the spraying device corresponding to the unloading bin of the transport vehicle, and can also be provided with only one set.
Referring to fig. 3, the storage building 3 is provided with upper, middle and lower three-layer spaces. Wherein the lower space is an underground space 35; the middle-layer space is formed by arranging 4 silo-type storage bins 31, 32, 33 and 34 in a row, wherein the storage bins 31 and 32 are used as sand bins, and the storage bins 33 and 34 are used as stone bins; the upper space 36 is provided on the top surfaces of the storage bins 31, 32, 33 and 34. The entrance of the upper space 36 engages the other end of the pipe lane 22 to shield the working surface of the conveyor 21 in the pipe lane; the outlets of the underground space 35 engage the pipe rack 42 to shield the working surface of the conveyor 41 in the pipe rack, thereby reducing dust emissions. In fig. 3, the storage bin is formed by spirally winding a steel plate, and is respectively communicated with the underground space 36 through a second funnel bottom 311, a second funnel bottom 321, a second funnel bottom 331 and a second funnel bottom 341 which are arranged on the bottom surface of the storage bin; a start end of the conveyor 41 is arranged in the underground space 36, and a conveying working surface of the conveyor 41 is arranged right below the second funnel bottom 311, the second funnel bottom 321, the second funnel bottom 331 and the second funnel bottom 341 to receive sand and/or stone falling from bottom openings of the second funnel bottom 311, the second funnel bottom 321, the second funnel bottom 331 and the second funnel bottom 341; the upper space 36 is provided with a terminal end of the conveyor 21, and the conveying terminal end of the conveyor 21 corresponds to a feed port 312, a feed port 322, a feed port 332 and a feed port 342 on the top of the storage bin 31, the storage bin 32, the storage bin 33 and the storage bin 34. In this embodiment, the top of the storage bin 31, the storage bin 32, the storage bin 33, and the storage bin 34 is further provided with an air outlet 313, an air outlet 323, an air outlet 333, and an air outlet 343, and the air outlet 313, the air outlet 323, the air outlet 333, and the air outlet 343 all include: the air outlet pipe is communicated with the space in the corresponding storage bin, the rain shielding cap is arranged at the top of the air outlet pipe, and the dust filtering air permeable material (not shown) is used for shielding a gap between the air outlet pipe and the rain shielding cap, wherein the dust filtering air permeable material can be non-woven fabrics or other cloth.
Referring to fig. 4, the concrete mixing plant 5 is a space 51 supported by the support column, and a concrete mixer 52 is provided in the space 51. Wherein the other end of the pipe lane 42 engages with the entrance of the space 51 to shield the working surface of the conveyor 41 in the pipe lane, thereby achieving the purpose of reducing dust emission. In fig. 4, the terminal end of the conveyor 42 is positioned above the feed opening of the concrete mixer 52 to enable sand and/or stone conveyed on the conveyor 42 to enter the concrete mixer 52.
In this embodiment, the conveyor 21 is connected by a first conveyor 211, a second conveyor 212 and a sorting and warehousing conveyor 213, the reason why the first conveyor 211 and the second conveyor 212 are connected in a rotating way is that the occupied space of the equipment can be reduced, the function of the tower 6 is to provide a supporting platform for the first conveyor 211 and the second conveyor 212, the tower space 61 is also formed on the tower 6, and the pipe gallery 22 is formed into two sections at the tower 6 and respectively connected with the inlet and the outlet of the tower space 61; the reason why the second conveyor 212 and the sorting and warehousing conveyor 213 are connected in a transferring manner is that the sand or stone falling on the second conveyor 212 is regulated by the sorting and warehousing conveyor 213 to fall into the corresponding sand or stone silo, for this purpose, the sorting and warehousing conveyor 213 is arranged on a powered railcar, tracks distributed on two sides of the feed inlet 312, the feed inlet 322, the feed inlet 332 and the feed inlet 342 are arranged in the upper space 36, and the sorting and warehousing conveyor 213 can reverse the conveying direction, and the driving roller of the conveyor 213 is driven by adopting a forward and reverse rotation motor, a steel wire lifting rope is arranged on one side of the track along the track direction, and a lead pulley for hanging a cable is arranged on the steel wire lifting rope. When the first conveyor 211 conveys stone, the powered railcar moves leftwards along the track to align the left end of the sorting and warehousing conveyor 213 with the feed inlet 332 of the stone silo or the feed inlet 342 of the stone silo, the belt of the sorting and warehousing conveyor 213 rotates anticlockwise, so that stone falling onto the sorting and warehousing conveyor 213 from the conveying terminal of the second conveyor 212 falls from the left end of the sorting and warehousing conveyor 213 and falls into the corresponding stone silo; when the first conveyor 211 conveys sand, the powered railcar moves rightward along the track to align the right end of the sorting and warehousing conveyor 213 with the feed inlet 312 of the sand silo or the feed inlet 322 of the sand silo, and the belt of the sorting and warehousing conveyor 213 rotates clockwise, so that stone falling onto the sorting and warehousing conveyor 213 from the conveying terminal of the second conveyor 212 falls from the right end of the sorting and warehousing conveyor 213 and falls into the corresponding stone silo, and with such an arrangement, space or equipment can be reduced. The first conveyor 211 comprises a horizontal conveying section 2111 and an upward-tilting conveying section 2112, the frame bodies of the horizontal conveying section 2111 and the upward-tilting conveying section 2112 are connected in a hinged mode, and the belt is turned through an inert wheel 2113.
In this embodiment, the conveyor 41 includes a fourth conveyor 411, a fifth conveyor 412, a sixth conveyor 413, and a seventh conveyor 414, the fourth conveyor 411 is configured to receive sand falling from the second hopper bottom 311 or the second hopper bottom 321 of the sand silo, the fifth conveyor 412 is configured to receive stone falling from the second hopper bottom 331 or the second hopper bottom 341 of the stone silo, the sand conveyed by the fourth conveyor 411 and the stone conveyed by the fifth conveyor 412 fall on a conveying surface of the sixth conveyor 413, the sixth conveyor 413 conveys the sand, the stone, or the sand-stone mixture on the conveying surface thereof onto a conveying surface of the seventh conveyor 414, and the seventh conveyor 414 is configured to convey the material on the conveying surface thereof into a feed port of the concrete mixer 52.
In this embodiment, a protective cover (not shown) is attached to the end of the conveyor 21 adjacent to the inside of the conveyor 41. The protective cover is of a structure formed by stretching or rotating a U-shaped cross section, and when one U-shaped member is used, the protective cover can be arranged at the terminal of the belt conveyor to ensure that the movement direction of materials falling from the conveying terminal is regular from parabola to be vertical downwards, and can also be arranged at the starting end of the belt conveyor to prevent the materials falling from the conveying terminal from sliding or bouncing out of the conveying surface of the belt. The shield may also be funnel-shaped, which also accomplishes this function. Adopt the protection casing, make the material still can fall into appointed regional within range under the circumstances of accelerating band conveyer's conveying speed.
In this embodiment, the vertical plane where the axis of the first conveyor 211 is located is approximately parallel to the vertical plane where the connecting line of the storage bin is located, and the included angle between the vertical plane where the connecting line of the storage bin is located and the vertical plane where the axis of the seventh conveyor 414 is located is approximately 7 °, which can be extended to 0-10 °, so that the structure is compact, and the occupation of the space area can be reduced. In other embodiments, the included angle between the vertical plane where the axis of the first conveyor 211 is located and the vertical plane where the connecting line of the storage bin is located may also be any value between 0 ° and 45 °; the angle between the vertical plane where the connecting line of the storage bin is located and the vertical plane where the axis of the seventh conveyor 414 is located may be any value between 0 and 45 °. However, the structure is most compact when the vertical plane in which the axis of the first conveyor 211 is located, the vertical plane in which the connecting line of the storage bins is located, and the vertical plane in which the axis of the seventh conveyor 414 is located are all approximately parallel, and the sequential connecting lines of the discharge transfer building 1, the first conveying pipe lane (including the tower 6), the storage bin 31, the storage bin 32, the storage bin 33, the storage bin 34, the second conveying pipe lane, and the concrete mixing plant 5 form a "" shape. Since the feed inlet height of the silo is higher than that of the concrete mixer, one arrangement is for the discharge window of the discharge transfer building to face the outside of the shape of .
In this embodiment, the walls forming the underground space 14, the pipe lane 22, the wall forming the tower space 61 for the splicing sleeve lane 22, and the wall forming the upper space 36 are all part of the pipe lane of the first conveying pipe lane, which are all used to mask the conveying work surface of the conveyor 21; the walls forming the underground space 35, the pipe lane 42, and the walls forming the space 51 are part of a second conveyor pipe lane, which are all used to conceal the conveying work surface of the conveyor 41. By adopting the connection mode, dust pollution in the sand and stone conveying process can be reduced to the greatest extent, and the environment-friendly requirement is met. In this embodiment, the cross sections of the pipe lane 22 and the pipe lane 42 are rectangular, and the pipe lane with the rectangular cross section is convenient to build and low in cost.
When the environment-friendly type sand feeding system for concrete production works, after a transport vehicle loaded with sand or stones arrives at a storage area, the sand is directly discharged into a discharge transfer bin 11, the sand falls onto a conveyor 21 below from a first hopper bottom 111, and the conveyor 21 conveys the sand into one of the sand bins; the stones are directly discharged into the discharging transfer bins, and the stones fall onto the conveyor 21 below from the corresponding first funnel bottom 121, first funnel bottom 131, and the conveyor 21 conveys the stones into one of the stone bins. It should be appreciated that different grades of sand or rock should be run in time periods to accommodate the limitation that conveyor 21 sets only one. In the material conveying process, the material discharging transfer bin 11 can reduce dust pollution in the material discharging process; the pipe gallery of the first conveying pipe gallery can reduce dust pollution when feeding materials to the storage bin; the second conveying pipe gallery can reduce dust pollution during feeding to the concrete mixer.
In other embodiments, the form of the piping lane may be varied, but the main form is to form a closed environment between the discharge port of the discharge transfer bin (i.e., the bottom outlet similar to the first hopper bottom in this embodiment) and the feed port of the storage bin, between the discharge port of the storage bin (i.e., the bottom outlet similar to the second hopper bottom in this embodiment) and the feed port of the concrete mixer 52, or a semi-closed environment as needed to reduce dust pollution or other pollution during the feeding of the conveyor, and to meet environmental requirements. The form of the storage bin can also be changed, but the main form is a closed building comprising a feed inlet and a discharge outlet, the air outlet of the closed building can be arranged in the upper space 36, thus a rain cap and a dust filtering ventilation material are not required to be arranged, the wall of the upper space serves as a dust raising and falling buffer space, and the air outlet of the closed building can also be arranged on the side wall of the upper part of the storage bin. The discharging transfer bin can also be changed, but the main form is a closed or semi-closed building comprising a discharging opening and a discharging opening.
Example 2:
as a further improvement of the embodiment 1, the environment-friendly molding sand Dan Songliao system for concrete production is shown in fig. 6, a first opening (not shown) is provided on the lower gallery wall of the pipe gallery 22 below the upward-tilting conveying section 2112, the first conveyor 211 is a belt conveyor, the first conveyor 211 is provided with a left inert wheel 71 and a right inert wheel 72 at the first opening, and the belt of the first conveyor 211 is turned by the left inert wheel 71 and the right inert wheel 72, is exposed to the first opening and is hung with a tension adjusting device 73 moving along the guide rail 74. The tensioning adjustment device moving along the guide rail can provide a suitable tensioning force. In this embodiment, the guide rail 74 is a vertically disposed support bar, while providing some support for the pipe lane. The tension adjusting device 73 includes a weight box 732 and a lower idle wheel 731 pivotally mounted on an upper portion of the weight box 732, and a wheel surface of the lower idle wheel 731 is connected to an inner side surface of the belt. When the first conveyor 211 is operated, sand or stone falls on the working surface of the conveyor belt, it impacts the belt, so that the tension of the belt is in a varying state, and thus the tension adjusting device vibrates up and down along the guide rail 74. On the lower gallery wall of the pipe gallery 22, above the first opening (i.e., above the left inert wheel 71), a dust collecting port is further provided, a flat funnel-shaped dust collecting pipe 75 is installed at the dust collecting port, and the flat funnel-shaped dust collecting pipe 75 is used for adapting to the width of the first conveyor 211 and can avoid oversized dust collecting port.
In order to fully exert the advantages of the dust collecting port, a brush (not shown) can be arranged on the upper right edge of the flat funnel shape of the dust collecting pipe 75, and the brush surface of the brush is attached to the lower surface of the belt. Thus, dust attached to the belt can be brushed down by the brush and then collected and falls down through the dust collecting port, so that dust on the contact surface of the left inert wheel 71 and the belt is reduced, and damage of dust to the surface of the belt due to the action of the left inert wheel 71 and the belt can be reduced.
Referring to fig. 7, a first opening (not shown) is provided in the lower wall of the pipe rack 42 below the seventh conveyor 414, the seventh conveyor 414 is a belt conveyor, the seventh conveyor 414 is provided with a left inert wheel 81 and a right inert wheel 82 at the first opening, and the belt of the seventh conveyor 414 is exposed to the first opening and is hung with a tension adjusting device 83 moving along the guide rail 84 after being supported and turned by the left inert wheel 81 and the right inert wheel 82. The tensioning adjustment device moving along the guide rail can provide a suitable tensioning force. In this embodiment, the guide rail 84 is a vertically disposed support bar, while providing some support for the pipe lane. The tension adjusting device 83 includes a weight box 832 and a lower inert wheel 831 pivotally mounted on an upper portion of the weight box 832, a wheel surface of the lower inert wheel 831 being connected to an inner side surface of the belt. When the seventh conveyor 414 is operated, sand or stone falls on the working surface of the seventh conveyor 414, it impacts the belt, thereby causing the tension of the belt to be in a varying state, and thus the tension adjusting device vibrates up and down along the guide rail 84. On the lower gallery wall of the pipe gallery 42, above the first opening (i.e., above the left inert wheel 81), a dust collecting port is further provided, and a flat funnel-shaped dust collecting pipe 85 is mounted at the dust collecting port, wherein the flat funnel-shaped dust collecting pipe 85 is used for adapting to the width of the seventh conveyor 414, and the dust collecting port can be prevented from being too large.
In order to fully exert the advantages of the dust collecting port, a brush (not shown) can be arranged on the upper right edge of the flat funnel shape of the dust collecting pipe 85, and the brush surface of the brush is attached to the lower surface of the belt. Like this, the dust that the belt was stained with just can be brushed down by the brush, and then collect through the dust collection mouth and fall, so, the dust on the contact surface of left inert wheel 81 and belt reduces, can reduce the damage to the belt surface because of the effect of left inert wheel 81 and belt down, dust.
It should be appreciated that rails 74 and 84 are not necessarily vertical and may be disposed at an incline. But its supporting effect and counterweight effect are inferior to those of the vertical state.
Example 3:
as a further improvement to example 2, the green sand Dan Songliao system for concrete production in this example does not have a separate dust collection port, but instead reuses the first opening as the dust collection port in example 2. That is, the first opening of the pipe rack 22 is provided with a dust collecting pipe 75, the size of which is determined by the tension adjusting device, and a side opening for the fixing rod to move up and down is provided at the dust collecting pipe corresponding to the weight box 732 and the slide fixing rod on the guide rail 74. The first opening on the pipe gallery 42 is provided with a dust collecting pipe 85, the size of the dust collecting pipe 85 is in order to be sleeved with a tensioning adjusting device, and a side opening which is convenient for the fixing rod to move up and down is arranged at the dust collecting pipe corresponding to the weight box 832 and the sliding block fixing rod on the guide rail 84.
In this embodiment, dust may pass through between the left inert wheel 71 and the belt, and between the left inert wheel 81 and the belt, so that the left inert wheel 71 and the left inert wheel 81 are hollow wheels, and the wheel surfaces of the hollow wheels are provided with strip-shaped holes, or the hollow wheels can be provided with strip-shaped grooves. The dust collecting pipe is arranged at the tensioning adjusting device and can shield the belt exposed at the tensioning adjusting device. Guide rails 74, 84 are preferably disposed vertically.
In this embodiment, the brush may be disposed on the inner wall of the dust collecting tube on one side of the right inert wheel 72 (i.e., the lower one of the left inert wheel 71 and the right inert wheel 72), and the brush surface of the brush is also attached to the surface of the belt. The effect of this arrangement is that the brush does not form a resistance when brushing off dust adhering to the belt, since in this section the belt needs to provide a tensioning force, whereas the resistance of the brush is present as a beneficial effect of the tensioning force.
Example 4:
in this embodiment, cameras for monitoring the running state of the equipment are respectively arranged in the discharging transfer bin 11, the discharging transfer bin 12, the discharging transfer bin 13, the first funnel bottom 111, the first funnel bottom 121, the first funnel bottom 131, the tower space 61, the feed inlet 312, the feed inlet 322, the feed inlet 332, the feed inlet 342, the second funnel bottom 311, the second funnel bottom 321, the second funnel bottom 331, the second funnel bottom 341 and the space 51 of the storage bin. And an explosion-proof lamp and a camera for monitoring the situation in the storage bin are also arranged in the storage bin.
While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments may be changed without departing from the spirit of the invention, and a plurality of specific embodiments are common variation ranges of the present invention, and will not be described in detail herein.
Claims (5)
1. The environment-friendly sand and stone feeding system for concrete production comprises a storage bin and a concrete mixer feeding unit, and is characterized by further comprising a classified material receiving and unloading unit and a classified material conveying and storage unit; the storage bin comprises a sand bin and a stone bin; the classifying, receiving and unloading unit comprises an unloading transfer bin for receiving sand or stones unloaded by the transport vehicle; the classified conveying and warehouse returning unit comprises a first conveying pipe gallery for classifying and returning sand materials or stones in the unloading transfer warehouse into corresponding sand warehouses or stone warehouses; the concrete mixer feeding unit comprises a second conveying pipe gallery for conveying sand and/or stone falling from the storage bin into the concrete mixer; the first conveying pipe gallery and the second conveying pipe gallery comprise a conveyor and a closed pipe gallery for shielding the working surface of the conveyor, and the two ends of the pipe gallery are correspondingly connected with a discharging transfer bin and a storage bin or correspondingly connected with a storage bin and a concrete mixer;
a first opening is formed in the upper inclined conveying section of the conveyor and the lower corridor wall of the pipe corridor, the conveyor is a belt conveyor, two inert wheels are arranged at the first opening of the belt conveyor, a belt of the conveyor is exposed out of the first opening after being supported and turned by the two inert wheels, a tensioning adjusting device moving along a guide rail is hung on the belt of the conveyor, a dust collecting pipe is arranged at the first opening, the higher one of the two inert wheels is a hollow wheel, and a strip-shaped hole/groove is formed in the wheel surface of the belt conveyor;
the feeding holes of the storage bins are arranged on the same straight line and are parallel to the direction of the straight line, guide rails are arranged on two sides of the feeding holes, and powered rail cars are arranged on the guide rails; the conveyor of the first conveying pipe rack comprises a sorting and warehousing conveyor capable of reversing the conveying direction, the sorting and warehousing conveyor is arranged on a powered rail car, and the powered rail car is used for driving the sorting and warehousing conveyor to move along the guide rail so that one end part of the sorting and warehousing conveyor corresponds to a target storage bin of sand or stone conveyed by the sorting and warehousing conveyor;
the feed inlets of the storage bins are arranged on the same straight line, and the discharge outlets of the storage bins are also arranged on the same straight line; the first conveying pipe gallery comprises a first conveyor, a tower, a second conveyor and a sorting and returning conveyor, the first conveyor is led out from the side face of the discharging transfer bin, the sorting and returning conveyor is arranged above the discharge port along the connecting line direction of the feed port, and the second conveyor receives the materials conveyed by the first conveyor at the tower and conveys the materials to the sorting and returning conveyor; the included angle between the vertical plane where the axis of the first conveyor is located and the vertical plane where the connecting line of the feeding port is located is 0-45 degrees; the included angle between the vertical surface where the axis of the first conveyor is located and the vertical surface where the connecting line of the feeding port is located is 0-10 degrees, and the connecting line of the discharging transfer bin, the first conveying pipe gallery, the storage bin, the second conveying pipe gallery and the concrete mixer in sequence forms a shape.
2. The environmentally friendly sand Dan Songliao system for concrete production according to claim 1, wherein the unloading transfer bin is a submerged bin provided with a bottom discharge port and an unloading window for unloading of the carrier.
3. The environmentally friendly sand Dan Songliao system for concrete production according to claim 2, wherein said bottom outlet is a bottom opening of a first hopper bottom, and wherein said bottom opening is provided with grid plates that overlap or are fixed to peripheral fixtures of said hopper bottom.
4. The green sand Dan Songliao system for concrete production according to claim 2, wherein the discharge window is provided with a strip-shaped dust curtain.
5. An environmentally friendly sand Dan Songliao system for concrete production according to claim 2, wherein the discharge window has a spray device disposed along the "" shaped door frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230152.9A CN108162197B (en) | 2018-03-20 | 2018-03-20 | Environment-friendly molding sand Dan Songliao system for concrete production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230152.9A CN108162197B (en) | 2018-03-20 | 2018-03-20 | Environment-friendly molding sand Dan Songliao system for concrete production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108162197A CN108162197A (en) | 2018-06-15 |
| CN108162197B true CN108162197B (en) | 2024-01-16 |
Family
ID=62512068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810230152.9A Active CN108162197B (en) | 2018-03-20 | 2018-03-20 | Environment-friendly molding sand Dan Songliao system for concrete production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108162197B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955391A (en) * | 2019-05-05 | 2019-07-02 | 武汉明华鸿昌新型建材有限责任公司 | A kind of concrete preparation system with high tower aggregate bin |
| CN110436101B (en) * | 2019-07-26 | 2021-11-05 | 深圳中物智建科技有限公司 | Building robot figure material distribution system |
| CN112428442B (en) * | 2020-11-18 | 2021-10-19 | 四川兴城港瑞建材有限公司 | Aggregate conveying system of concrete mixing station and arrangement method |
| CN114425820B (en) * | 2021-12-29 | 2024-05-10 | 贵州互惠混凝土机械服务有限公司 | Work efficient four-stage concrete mixing plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465379A (en) * | 2013-08-30 | 2013-12-25 | 三一汽车制造有限公司 | Mortar stirring station and sand supplying system |
| CN103465380A (en) * | 2013-09-04 | 2013-12-25 | 三一汽车制造有限公司 | Mortar stirring station |
| CN103600420A (en) * | 2013-11-29 | 2014-02-26 | 三一汽车制造有限公司 | Automatic feeding system and mixing station |
| CN207983702U (en) * | 2018-03-20 | 2018-10-19 | 河南省第一建筑工程集团有限责任公司 | Environment-friendly type sandstone feed system for concrete production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8734081B2 (en) * | 2009-11-20 | 2014-05-27 | Halliburton Energy Services, Inc. | Methods and systems for material transfer |
-
2018
- 2018-03-20 CN CN201810230152.9A patent/CN108162197B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465379A (en) * | 2013-08-30 | 2013-12-25 | 三一汽车制造有限公司 | Mortar stirring station and sand supplying system |
| CN103465380A (en) * | 2013-09-04 | 2013-12-25 | 三一汽车制造有限公司 | Mortar stirring station |
| CN103600420A (en) * | 2013-11-29 | 2014-02-26 | 三一汽车制造有限公司 | Automatic feeding system and mixing station |
| CN207983702U (en) * | 2018-03-20 | 2018-10-19 | 河南省第一建筑工程集团有限责任公司 | Environment-friendly type sandstone feed system for concrete production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108162197A (en) | 2018-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108162197B (en) | Environment-friendly molding sand Dan Songliao system for concrete production | |
| CN206678185U (en) | With reference to the sunk type concrete mixing plant in stock ground | |
| CN106907006B (en) | Building outline forming machine | |
| CN206825698U (en) | With reference to the T-shaped concrete mixing plant in stock ground | |
| CN206678187U (en) | A kind of sunk type stabilized soil mixing station | |
| CN207983702U (en) | Environment-friendly type sandstone feed system for concrete production | |
| CN206765104U (en) | Sunk type sandstone blending station | |
| CN103640905A (en) | Automatic feeding and discharging method for granular materials in horizontal warehouse | |
| CN206765101U (en) | With reference to the sunk type stabilized soil mixing station in stock ground | |
| CN206765100U (en) | Sunk type concrete mixing plant | |
| CN206678188U (en) | Sunk type stabilized soil mixing station | |
| CN206426276U (en) | Buried concrete mixing plant | |
| CN214357930U (en) | Suspension type spiral flat storehouse cleaning machine and flat bottom storehouse | |
| CN215050059U (en) | Intelligent integrated equipment of drying in air of stand | |
| CN206855784U (en) | A kind of high-efficiency environment friendly underground project dug underground concrete mixing plant | |
| CN206765093U (en) | A kind of environmentally friendly underground project dug underground concrete mixing plant | |
| CN206748757U (en) | A kind of sunk type concrete mixing plant | |
| CN206765095U (en) | With reference to the T-shaped sunk type stabilized soil mixing station in stock ground | |
| CN206765096U (en) | With reference to the oblique hoisting type concrete mixing plant of sinking in stock ground | |
| CN206765103U (en) | A kind of underground project dug underground concrete mixing plant | |
| CN206765094U (en) | A kind of heavy duty detergent concrete mixing plant | |
| CN206796213U (en) | Close-coupled concrete mixing plant | |
| CN214266081U (en) | Immersive ready-mixed commercial concrete production system | |
| CN2878279Y (en) | Suspension type dustproof strap conveyor under storeroom | |
| CN206748755U (en) | It is a kind of efficiently to descend project dug underground concrete mixing plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |