A double-discharging-port concrete receiving and mixing device

Abstract

The utility model relates to a double-discharge-port concrete receiving and mixing device, which includes a mixing bucket, a first tubular screw conveyor, a vertical elevator, a second tubular screw conveyor, and at least two discharging units connected in sequence through pipelines, wherein the at least two discharging units are arranged in sequence along the conveying direction of the second tubular screw conveyor, and the discharging unit includes a metering bin, a third tubular screw conveyor, and a discharging pipe connected in sequence, and there is a multiple difference between the diameters of the discharging pipes of at least two of the discharging units. The utility model solves the problem that concrete is easily separated and dusted when discharging from the existing production line, and the bagging requirements of UHPC of different weights cannot be met, and has the advantages of improving the quality of concrete production, saving production space, and reducing equipment investment.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing equipment, in particular to a double-discharging-port type concrete receiving and mixing device. Background Art

[0002] Ultra-high performance concrete (UHPC) is a new type of high-tech concrete material that has attracted much attention for its ultra-high strength, durability and aesthetic properties. The manufacturing process of UHPC panels is relatively complex and mainly includes the following steps: Raw material selection: The raw materials of UHPC mainly include cement, fine aggregate, coarse aggregate, fiber, admixtures, etc. The selection and proportion of these raw materials directly affect the performance of UHPC; Mixing: Mix the raw materials in a certain proportion to form a uniform slurry; Casting; Post-processing. With the improvement of design theory, the advent of ultra-high efficiency water reducers and the advancement of formulation technology, UHPC materials have the construction performance of ordinary concrete, and can even achieve self-compacting and can be cured at room temperature. They are already in a wide range of applications. Among them, UHPC is particularly suitable for large-span bridges, explosion-proof structures and thin-walled structures, as well as for use in highly abrasive and highly corrosive environments.

[0003] A Chinese patent with the authorization announcement number CN217916104U discloses a dry-mix concrete production line, including a hopper, the bottom end of the hopper is connected to a first tubular conveyor belt, one end of the first tubular conveyor belt is provided with a stirring mechanism, the stirring mechanism includes a stirring box, the top end of the stirring box is bonded with a ring plate, one side of the ring plate is connected to one end of the first tubular conveyor belt, the inner wall of the ring plate is provided with a moving mechanism, the moving mechanism includes a connecting plate, both sides of the connecting plate are fixedly connected to the inner wall of the ring plate, the bottom end of the connecting plate is fixedly connected to a lifting column, the bottom end of the lifting column is fixedly connected to a push plate, one side of the ring plate is fixedly connected to a vertical plate, one side of the vertical plate A hydraulic cylinder is fixedly connected to one side of the mixing box, a fixed block is fixedly connected to one side of the hydraulic cylinder, a plurality of iron columns are fixedly connected to one side of the fixed block, a discharging column is fixedly connected to the bottom end of the mixing box, the inner wall of the discharging column is sleeved with the outer wall of the push plate, one side of the discharging column is movably connected to the outer wall of the iron column, a second tubular conveyor belt is provided at the bottom end of the discharging column, one end of the second tubular conveyor belt is connected to a mixing bucket, a plurality of feeding pipes are provided at the top of the mixing bucket, a metering bin is fixedly connected to the bottom end of the mixing bucket, a control console is provided below the discharging column, a belt conveyor is provided at the bottom end of the metering bin, one end of the belt conveyor is connected to the mixing bin, and a packaging machine is fixedly connected to the bottom end of the mixing bin.

[0004] The above-mentioned prior art solutions have the following defects: on the one hand, during the unloading process of the second tubular conveyor belt and the belt conveyor, since a large amount of steel fibers are added to the UHPC mixture, it is easy to cause the isotropic distribution of the steel fibers and the isotropic segregation of the concrete during the falling process, and some lightweight materials are easily drawn out to form dust, which will cause pollution to the production environment; on the other hand, since UHPC is sold by tons during actual sales, several small bags of UHPC are often required to make up the total weight. For example, when selling 2.2 tons of UHPC, 4 bags of 500kg large bags of UHPC and 4 bags of 50kg small bags of UHPC are required. However, the above-mentioned mixing bin can only discharge materials from a single port, so it is difficult to meet the bagging requirements of UHPC of different weights. Only two production lines can be used to deliver materials separately, which is expensive and occupies a large area, and cannot be arranged when the production site is narrow. Utility Model Content

[0005] The problem to be solved by the utility model is to provide a double-discharge-port concrete dividing and mixing device in view of the above-mentioned deficiencies existing in the prior art, which solves the problem that concrete (UHPC) is easy to separate and generate dust when discharging from the existing production line, and the demand for UHPC bags of different weights cannot be met, and has the advantages of improving the quality of concrete production, saving production space, and reducing equipment investment.

[0006] The above utility model object of the utility model is achieved through the following technical solutions:

[0007] A double-discharge-port concrete distribution and mixing device comprises a mixing bucket, a first tubular screw conveyor, a vertical elevator, a second tubular screw conveyor, and at least two discharge units connected in sequence through pipelines. The at least two discharge units are arranged in sequence along the conveying direction of the second tubular screw conveyor. The discharge unit comprises a metering bin, a third tubular screw conveyor and a discharge pipe connected in sequence. There is a multiple difference between the discharge pipe diameters of at least two of the discharge units.

[0008] By adopting the above technical scheme, the mixing bucket, the first tubular screw conveyor, the vertical elevator, the second tubular screw conveyor, and at least two discharge units are connected in sequence through pipelines to form a divided material mixing device, which can directly avoid the situation where some lightweight materials are easily drawn out and dust is formed when the concrete is transferred between the components; different from the prior art, the utility model selects the second tubular screw conveyor to transport the concrete to the feed end of each metering bin in batches. Since there is a multiple difference between the diameters of the discharge pipes, it can be suitable for the installation of woven bags for large bags and small bags, and complete the bagging of concrete of different specifications, which is beneficial to saving production space and reducing equipment investment; at the same time, the utility model selects the third tubular screw conveyor at the discharge end of the metering bin for re-mixing and transportation, and the mixed concrete is transported to the predetermined woven bag through the discharge pipe, which solves the segregation problem in the original concrete unloading process and is beneficial to improving the quality of concrete production.

[0009] The utility model is further configured as follows: an end of the first tubular screw conveyor close to the mixing bucket is lower than an end close to the vertical elevator.

[0010] By adopting the above technical solution, the situation of concrete segregation and dust can be further avoided.

[0011] The utility model is further configured as follows: an end of the vertical lifter close to the first tubular screw conveyor is lower than an end close to the second tubular screw conveyor.

[0012] By adopting the above technical solution, the situation of concrete segregation and dust can be further avoided.

[0013] The utility model is further configured as follows: the vertical elevator is configured as a bucket elevator.

[0014] By adopting the above technical solution, the situation of concrete segregation and dust can be further avoided.

[0015] The utility model is further configured as follows: the feed end pipe of the vertical hoist is arranged obliquely relative to the horizontal plane and is used to guide concrete into the feed end of the vertical hoist; the discharge end pipe of the vertical hoist is arranged obliquely relative to the horizontal plane and is used to guide concrete to leave the discharge end of the vertical hoist.

[0016] By adopting the above technical solution, the situation of concrete segregation and dust can be further avoided.

[0017] The utility model is further configured as follows: the second tubular screw conveyor is arranged in a horizontal manner along the conveying direction.

[0018] By adopting the above technical solution, the situation of concrete segregation and dust can be further avoided.

[0019] The utility model is further configured as follows: the third tubular screw conveyor is arranged in a horizontal manner along the conveying direction.

[0020] By adopting the above technical solution, the situation of concrete segregation and dust can be further avoided.

[0021] The utility model is further configured as follows: the discharging units are provided with two, and are divided into a large packaging bag discharging unit and a small packaging bag discharging unit, the feeding end of the large packaging bag discharging unit is arranged close to the feeding end of the second tubular screw conveyor, and the small packaging bag discharging unit is arranged away from the feeding end of the second tubular screw conveyor.

[0022] By adopting the above technical solution, the large bag discharging unit and the small bag discharging unit are used for bagging large bags and small bags of concrete respectively, which can save production space and reduce equipment investment.

[0023] The utility model is further configured as follows: the large packaging bag discharging unit also includes a vibration table arranged below the discharging pipe.

[0024] By adopting the above technical solution, the vibration table is used to vibrate the concrete when discharging the large-packaged concrete, so as to improve the uniformity of the concrete.

[0025] The utility model is further configured as follows: the small packaging bag discharging unit also includes a belt conveyor arranged below the discharging pipe.

[0026] By adopting the above technical solution, the belt conveyor is used to transport the small-packaged concrete bags to the seaming machine for packaging, so as to improve production efficiency.

[0027] In summary, the beneficial technical effects of the utility model are: solving the problem that concrete is easily separated and dusted when the existing production line is discharged, and cannot meet the requirements of UHPC bags of different weights, and has the advantages of improving the quality of concrete production, saving production space, and reducing equipment investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a structural schematic diagram of a double-discharge-port concrete material receiving and mixing device.

[0029] Figure 2 It is a schematic diagram of the connection relationship between the vertical elevator, the second tubular screw conveyor, the large packaging bag discharging unit, and the woven bag of the utility model.

[0030] Figure 3It is a schematic diagram of the connection relationship between the vertical lifting machine, the second tubular screw conveyor, the large packaging bag discharging unit, and the small packaging bag discharging unit of the utility model.

[0031] In the figure, 1, mixing bucket; 2, first tubular screw conveyor; 3, vertical elevator; 4, second tubular screw conveyor; 51, large packaging bag discharging unit; 52, small packaging bag discharging unit; 61, metering bin; 62, third tubular screw conveyor; 63, discharging pipe; 64, vibration table; 65, belt conveyor. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and functions achieved by the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0033] Reference Figure 1 , is a double-discharge-port concrete receiving and mixing device disclosed in the utility model, comprising a mixing bucket 1, a first tubular screw conveyor 2, a vertical elevator 3, a second tubular screw conveyor 4, and two discharging units connected in sequence through pipelines. Among them, the vertical elevator 3 is set as a bucket elevator, and the two discharging units are arranged in sequence along the conveying direction of the second tubular screw conveyor 4.

[0034] In order to avoid the segregation of concrete and dust in the receiving section, the end of the first tubular screw conveyor 2 close to the mixing bucket 1 is lower than the end close to the vertical elevator 3, and the end of the vertical elevator 3 close to the first tubular screw conveyor 2 is lower than the end close to the second tubular screw conveyor 4.

[0035] Reference Figure 2 In order to avoid the segregation of concrete and dust in the conveying section, the feed end pipe of the vertical hoist 3 is arranged at an angle relative to the horizontal plane and is used to guide the concrete into the feed end of the vertical hoist 3. The discharge end pipe of the vertical hoist 3 is arranged at an angle relative to the horizontal plane and is used to guide the concrete to leave the discharge end of the vertical hoist 3. The second tubular screw conveyor 4 is arranged horizontally in the conveying direction.

[0036] Reference Figure 3 There are two discharging units, which are divided into a large bag discharging unit 51 and a small bag discharging unit 52. The feeding end of the large bag discharging unit 51 is arranged close to the feeding end of the second tubular screw conveyor 4, and the small bag discharging unit 52 is arranged away from the feeding end of the second tubular screw conveyor 4. The large bag discharging unit 51 and the small bag discharging unit 52 are respectively used for bagging concrete in large bags and small bags, which can save production space and reduce equipment investment.

[0037] Specifically, the large bag discharging unit 51 includes a metering bin 61, a third tubular screw conveyor 62, and a discharging pipe 63 connected in sequence, and a vibration table 64 arranged below the discharging pipe 63. The vibration table 64 is used to vibrate the concrete when discharging the large bag concrete to improve the uniformity of the concrete. The small bag discharging unit 52 includes a metering bin 61, a third tubular screw conveyor 62, and a discharging pipe 63 connected in sequence, and a belt conveyor 65 arranged below the discharging pipe 63.

[0038] To avoid dusting of concrete in the material distribution section, the third tubular screw conveyor 62 is arranged in a horizontal manner in the conveying direction. The belt conveyor 65 is used to convey the small packaged concrete to the edge sewing machine for packaging to improve production efficiency.

[0039] In addition, there is a multiple difference between the diameters of the discharge pipes 63 of the large bag discharging unit 51 and the small bag discharging unit 52, which can be suitable for the installation of woven bags for large bag packaging and small bag packaging, and complete the bag packaging of concrete of different specifications.

[0040] The implementation principle of this embodiment is: by connecting the mixing bucket 1, the first tubular screw conveyor 2, the vertical elevator 3, the second tubular screw conveyor 4, and the two discharging units in sequence through pipelines to form a divided material mixing device, which can directly avoid the situation where some lightweight materials are easily drawn out and dust is formed when the concrete is transferred between the components; different from the prior art, the utility model selects the second tubular screw conveyor 4 to transport the concrete to the feeding end of each metering bin 61 in batches. Since there is a multiple difference between the diameters of the discharge pipe 63, it can be suitable for the installation of woven bags for large bags and small bags, and complete the bagging of concrete of different specifications, which is beneficial to saving production space and reducing equipment investment; at the same time, the utility model selects the third tubular screw conveyor 62 at the discharge end of the metering bin 61 for re-mixing and transportation, and the mixed concrete is transported to the predetermined woven bag through the discharge pipe 63, which solves the segregation problem in the original concrete unloading process and is beneficial to improving the quality of concrete production.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A double-discharge-port concrete mixing device, characterized in that: The invention comprises a mixing bucket (1), a first tubular screw conveyor (2), a vertical elevator (3), a second tubular screw conveyor (4), and at least two discharging units which are sequentially connected via a pipeline. The at least two discharging units are sequentially arranged along the conveying direction of the second tubular screw conveyor (4). The discharging units comprise a metering bin (61), a third tubular screw conveyor (62), and a discharging pipe (63) which are sequentially connected. There is a multiple difference between the diameters of the discharging pipes (63) of at least two of the discharging units.

2. A double-discharge-port concrete mixing device according to claim 1, characterized in that: The end of the first tubular screw conveyor (2) close to the mixing bucket (1) is lower than the end close to the vertical elevator (3).

3. A double-discharge-port concrete mixing device according to claim 1, characterized in that: The end of the vertical lift (3) close to the first tubular screw conveyor (2) is lower than the end close to the second tubular screw conveyor (4).

4. A double-discharge-port concrete mixing device according to claim 3, characterized in that: The vertical elevator (3) is configured as a bucket elevator.

5. The double-discharge-port concrete mixing device according to claim 3, characterized in that: The feed end pipe of the vertical hoist (3) is arranged obliquely relative to the horizontal plane and is used to guide concrete into the feed end of the vertical hoist (3); the discharge end pipe of the vertical hoist (3) is arranged obliquely relative to the horizontal plane and is used to guide concrete to leave the discharge end of the vertical hoist (3).

6. A double-discharge-port concrete mixing device according to claim 1, characterized in that: The second tubular screw conveyor (4) is arranged in a horizontal manner in the conveying direction.

7. The double-discharge-port concrete mixing device according to claim 1, characterized in that: The third tubular screw conveyor (62) is arranged in a horizontal manner in the conveying direction.

8. The double-discharge-port concrete mixing device according to claim 1, characterized in that: The discharging units are provided in two and are divided into a large packaging bag discharging unit (51) and a small packaging bag discharging unit (52); the feeding end of the large packaging bag discharging unit (51) is arranged close to the feeding end of the second tubular screw conveyor (4), and the small packaging bag discharging unit (52) is arranged away from the feeding end of the second tubular screw conveyor (4).

9. A double-discharge-port concrete mixing device according to claim 8, characterized in that: The large packaging bag discharging unit (51) further comprises a vibration table (64) arranged below the discharging pipe (63).

10. The double-discharge-port concrete mixing device according to claim 8, characterized in that: The small packaging bag discharging unit (52) further comprises a belt conveyor (65) arranged below the discharging pipe (63).

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