A concrete slurry homogenizing mixer for construction and water conservancy construction

Abstract

The present invention discloses a concrete slurry homogenizing mixer for building and water conservancy construction, comprising a frame, two supporting rings are arranged at the upper end of the frame, a rotating drum is coaxially arranged between the two supporting rings, and bearings are respectively matched between the rotating drum and the supporting rings on both sides; an end cover is threadedly connected to one end of the rotating drum, and a rotating shaft is inserted into the other end, a second bearing and a shaft seal are matched between the rotating shaft and the rotating drum, and the shaft seal is sealed on the inner side of the second bearing; a stirring mechanism is arranged at the end of the rotating shaft inserted into the rotating drum; a driven pulley is installed at the end of the rotating shaft located outside the rotating drum, and a first motor is arranged on the outer side of the frame, and the first motor is connected to a driving pulley; this device adopts passive contact after natural falling due to gravity to achieve sufficient and effective stirring.

Description

Technical Field

[0001] The invention relates to a concrete slurry homogenizing mixer for building and water conservancy construction. Background Art

[0002] In the high-precision construction of water conservancy projects and construction projects, especially in the waterproofing of gaps and grouting construction, there are strict technical effects on the proportion of the mixed concrete slurry and the degree of refinement. In the prior art, the mixing of this type of high-precision concrete is mainly achieved by traditional mixing equipment, which rotates the stirring rod to achieve mixing. However, the structure of the concrete slurry obtained by this mixing method is very uneven. The reason is that the rotation position of the stirring rod is fixed, so the concrete slurry material at each position is effectively stirred.

[0003] Based on the above problems, we designed a concrete slurry homogenizing mixer for construction and water conservancy construction that uses passive contact after natural falling due to gravity to achieve full and effective mixing. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a concrete slurry homogenizing mixer for building construction and water conservancy construction, which realizes full and effective mixing by passive contact after natural falling due to gravity.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A concrete slurry homogenizing mixer for construction and water conservancy construction comprises a frame, two support rings are arranged at the upper end of the frame, a rotating drum is coaxially arranged between the two support rings, and bearings are respectively matched between the rotating drum and the support rings on both sides; an end cover is threadedly connected to one end of the rotating drum, and a rotating shaft is inserted into the other end, a second bearing and a shaft seal are matched between the rotating shaft and the rotating drum, and the shaft seal is sealed on the inner side of the second bearing; a stirring mechanism is arranged at the end of the rotating shaft inserted into the rotating drum; a driven pulley is installed at the end of the rotating shaft located outside the rotating drum, and a first motor is arranged on the outer side of the frame, the first motor is connected to a driving pulley, and the driven pulley and the driving pulley A transmission belt is matched between them; two connecting pipes are arranged in an annular manner on the outer wall of the rotating drum, and a storage tank is connected to the connecting pipe flange; a first ball valve is matched between the storage tank and the connecting pipe, and a material pipe is arranged at the end of the storage tank away from the connecting pipe; a second ball valve is installed on the material pipe; a first driven wheel is installed on the rotating drum; a second motor is installed through the frame, and a first driving wheel is installed at the output end of the second motor, and a first transmission belt is matched between the first driven wheel and the first driving wheel; a side plate is arranged on the side surface of the support ring on one side, and a positioning bolt is screwed into the surface of the side plate, and the positioning bolt is screwed inward and presses against the rotating drum, and the position of the rotating drum is fixed at this time.

[0007] The method of preparing concrete slurry by the device is as follows:

[0008] First, fill the concrete slurry raw materials into the upper storage tank through the material pipe; keep the first ball valve closed during filling; after filling, close the second ball valve; then start the first motor, and drive the shaft to rotate at high speed through the first motor; then open the first ball valve at the bottom first, and then open the first ball valve at the top, so that the raw materials of the concrete slurry in the upper storage tank enter the drum, and the concrete slurry stirred by the stirring mechanism enters the storage tank at the bottom; until the raw materials in the upper storage tank completely enter the storage tank at the bottom; then control the drum to rotate 180 degrees, so that the storage tank originally located at the bottom rotates to the top, and then discharges the material downward. Repeat the above steps several times to complete the preparation of concrete slurry. After preparation, open the second ball valve at the bottom to unload.

[0009] At the same time, in the above technical solution, the drum can be driven by the second motor to rotate at high speed to achieve centrifugal stirring.

[0010] Preferably, the stirring mechanism includes two dispersion cones arranged symmetrically on the left and right, and the diameters of the two dispersion cones gradually decrease toward the connection position; a fixed baffle is provided at the outer end surface of the dispersion cone on the left; a movable baffle is provided at the right end position of the dispersion cone on the right; a plurality of dispersion rods are distributed in a ring on the left side of the movable baffle, and the dispersion rods act on the fixed baffle; a nut is screwed into the rotating shaft, and the nut is against the movable baffle after being screwed in; the connecting pipe corresponds to the connection position of the two dispersion cones; the diameters of the fixed baffle and the movable baffle are consistent, and a gap of 2mm~4mm is formed between the fixed baffle and the inner wall of the rotating drum.

[0011] A dispersion cone is used, and the dispersion cone is conical, so that after the two dispersion cones are assembled, the volume in the middle position is larger. This large volume just corresponds to the storage tank, so that the capacity of the concrete slurry entering the rotating drum per unit time is increased; and the concrete slurry entering the rotating drum can be effectively introduced into the storage tank below; when the rotating shaft rotates, the concrete slurry passes through the high-speed rotating dispersion rod and then contacts the dispersion cone and is thrown out at high speed, contacts the dispersion rod again, and then is thrown to the inner wall of the rotating drum, and slides down along the inner wall of the rotating drum into the storage tank below. After a mixing cycle is completed, the rotating drum is rotated so that the storage tank originally located at the bottom rotates to the top, and then the next mixing and mixing cycle begins. After repeated operations many times, the concrete slurry can be fully mixed.

[0012] Preferably, a stabilizing sleeve is provided at the inner axis of the end cover, and the right end of the rotating shaft is inserted into the stabilizing sleeve and is clearance-matched with the stabilizing sleeve; the clearance is less than 1 mm.

[0013] The stabilizing sleeve can increase the rotational stability of the rotating shaft, reduce the vibration of the rotating shaft, and avoid the collision between the fixed baffle and the movable baffle and the inner wall of the rotating drum.

[0014] Preferably, a plurality of V-shaped first guide grooves are arranged in a ring shape on the outer wall of the movable baffle; a plurality of V-shaped second guide grooves are arranged in a ring shape on the outer wall of the fixed baffle, the first guide grooves and the second guide grooves are staggered, the dispersion rod is located between two adjacent first guide grooves, and the dispersion rod is positioned in the second guide groove.

[0015] In the above technical solution, the first guide groove and the second guide groove can guide the slurry located outside the fixed baffle and the movable baffle into the storage tank below; at the same time, one end of the dispersion rod is fixedly connected to the movable baffle, and the other end is just stuck in the second guide groove, so that when the rotating shaft rotates, the rotation stability of the dispersion rod is improved. At the same time, when cleaning the dispersion rod, you only need to remove the movable baffle to the right, which is convenient for maintenance operations.

[0016] Preferably, an outer ring plate is provided on the outer wall of the rotating drum, an annular groove is provided on the inner wall of the outer ring plate, and a connecting rod is welded between the outer ring plate and the support ring; an axle is provided on the outer wall of the storage tank, a roller is matched through the axle, and a first bearing is matched between the roller and the axle; the roller matches the annular groove.

[0017] In the above technical solution, the outer ring plate is fixedly connected to the support ring via a connecting rod. When the storage tank rotates, the rotation stability of the storage tank is improved through the cooperation of the roller and the outer ring plate.

[0018] Preferably, the first transmission belt is a synchronous toothed belt; the synchronous toothed belt can maintain a precise transmission ratio.

[0019] The beneficial effects of the present invention are:

[0020] In this device, the drum is rotatable, so that the positions of the two storage tanks can be interchanged. After the exchange, the raw materials in the upper storage tank enter the lower storage tank under the action of gravity; during this period, it is necessary to pass through the drum, and the high-speed rotation of the stirring structure inside the drum is used to achieve full mixing of the concrete slurry; through multiple rotations of the drum, the positions of the storage tanks are interchanged multiple times, and the concrete mortar is fully mixed;

[0021] In this device, the drum can also rotate at high speed to achieve centrifugal stirring;

[0022] In this device, one end of the drum is openable, and after each day's work, it needs to be flushed with water to prevent the concrete from agglomerating;

[0023] The device has a relatively simple structure and a relatively low cost, and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 is a structural schematic diagram of the rotating shaft;

[0027] Figure 3 is a side view of a fixed baffle;

[0028] Figure 4is a side view of the movable baffle;

[0029] Figure 5 for Figure 1 A local enlarged view at point A;

[0030] Figure 6 It is a partial cross-sectional view of the outer ring plate;

[0031] Figure 7 This is the front view of the storage tank. DETAILED DESCRIPTION

[0032] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0033] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0034] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figures 1 to 7 shown. Example

[0038] A concrete slurry homogenizing mixer for construction and water conservancy construction, comprising a frame 1, two support rings 2 are arranged at the upper end of the frame 1, a rotating drum 3 is coaxially arranged between the two support rings 2, and bearings are respectively matched between the rotating drum 3 and the support rings 2 on both sides; one end of the rotating drum 3 is threadedly connected with an end cover 301, and the other end is inserted with a rotating shaft 302, a second bearing and a shaft seal 334 are matched between the rotating shaft 302 and the rotating drum 3, and the shaft seal 334 is sealed on the inner side of the second bearing; a stirring mechanism 4 is arranged at the end of the rotating shaft 302 inserted into the rotating drum 3; a driven pulley 303 is installed at the end of the rotating shaft 302 located outside the rotating drum 3, and a first motor 5 is arranged on the outer side of the frame 1, the first motor 5 is connected to a driving pulley 501, and a transmission belt 5 is matched between the driven pulley 303 and the driving pulley 501. 02; two connecting pipes 304 are arranged in an annular manner on the outer wall of the rotating drum 3, and a storage tank 6 is connected to the connecting pipe 304 through a flange; a first ball valve 601 is arranged between the storage tank 6 and the connecting pipe 304, and a material pipe 602 is arranged at the end of the storage tank 6 away from the connecting pipe 304; a second ball valve 603 is installed on the material pipe 602; a first driven wheel 311 is installed on the rotating drum 3; a second motor 7 is installed through the frame 1, and a first driving wheel 701 is installed at the output end of the second motor 7, and a first transmission belt 702 is arranged between the first driven wheel 311 and the first driving wheel 701; a side plate 211 is arranged on the side surface of the support ring 2 on one side, and a positioning bolt 212 is screwed into the surface of the side plate 211, and the positioning bolt 212 is screwed inward to abut against the rotating drum 3, and the position of the rotating drum 3 is fixed at this time.

[0039] The method of preparing concrete slurry by the device is as follows:

[0040] First, fill the concrete slurry raw materials into the upper storage tank 6 through the material pipe 602; keep the first ball valve 601 closed during filling; after filling, close the second ball valve 603; then start the first motor 5, and drive the rotating shaft 302 to rotate at high speed through the first motor 5; then open the first ball valve 601 at the bottom first, and then open the first ball valve 601 at the top, so that the raw materials of the concrete slurry in the upper storage tank 6 enter the rotating drum 3, and the concrete slurry stirred by the stirring mechanism 4 enters the storage tank 6 at the bottom; until the raw materials in the upper storage tank 6 completely enter the storage tank 6 at the bottom; then control the rotating drum 3 to rotate 180 degrees, so that the storage tank 6 originally located at the bottom rotates to the top, and then discharges downward. Repeat the above steps several times to complete the preparation of concrete slurry. After preparation, open the second ball valve 603 at the bottom to unload.

[0041] Meanwhile, in the above technical solution, the drum 3 can be driven by the second motor 7 to rotate at a high speed to achieve centrifugal stirring. Example

[0042] The stirring mechanism 4 includes two dispersion cones 401 which are symmetrically arranged on the left and right, and the diameters of the two dispersion cones 401 gradually decrease toward the connection position; a fixed baffle 402 is arranged at the outer end surface of the dispersion cone 401 on the left; a movable baffle 403 is arranged at the right end position of the dispersion cone 401 on the right; a plurality of dispersion rods 404 are distributed in an annular manner on the left side of the movable baffle 403, and the dispersion rods 404 act on the fixed baffle 402; a nut 405 is screwed into the rotating shaft 302, and the nut 405 abuts against the movable baffle 403 after being screwed in; the connecting pipe 304 corresponds to the connection position of the two dispersion cones 401; the diameters of the fixed baffle 402 and the movable baffle 403 are consistent, and a 2mm gap is formed between the fixed baffle 402 and the inner wall of the rotating drum 3.

[0043] A dispersion cone 401 is used, and the dispersion cone 401 is conical, so that after the two dispersion cones 401 are assembled, the volume at the middle position is larger, and the large volume just corresponds to the storage tank, so that the capacity of the concrete slurry entering the rotating drum 3 per unit time is increased; and the concrete slurry entering the rotating drum 3 can also be effectively introduced into the storage tank 6 below; when the rotating shaft 302 rotates, the concrete slurry passes through the high-speed rotating dispersion rod 404 and then contacts the dispersion cone 401 and is thrown out at high speed, contacts the dispersion rod 404 again, and then is thrown to the inner wall of the rotating drum 3, and slides down along the inner wall of the rotating drum 3 into the storage tank 6 below. After a mixing cycle is completed, the rotating drum 3 is rotated so that the storage tank 6 originally located at the bottom rotates to the top, and then the next mixing and mixing cycle begins. After repeated operations for many times, the concrete slurry can be fully mixed. Example

[0044] A stabilizing sleeve 333 is disposed at the inner axis of the end cover 301 , and the right end of the rotating shaft 302 is inserted into the stabilizing sleeve 333 , and a clearance fit is formed between the right end of the rotating shaft 302 and the stabilizing sleeve 333 ; the clearance fit is less than 1 mm.

[0045] The stabilizing sleeve 333 can increase the rotation stability of the rotating shaft 302 , reduce the vibration of the rotating shaft 302 , and avoid collision between the fixed baffle 402 and the movable baffle 403 and the inner wall of the rotating drum 3 . Example

[0046] A plurality of V-shaped first guide grooves 441 are arranged in a ring shape on the outer wall of the movable baffle 403; a plurality of V-shaped second guide grooves 442 are arranged in a ring shape on the outer wall of the fixed baffle 402, the first guide grooves 441 and the second guide grooves 442 are staggered, the dispersion rod 404 is located between two adjacent first guide grooves 441, and the dispersion rod 404 is positioned in the second guide groove 442.

[0047] In the above technical solution, the first guide groove 441 and the second guide groove 442 can guide the slurry located outside the fixed baffle 402 and the movable baffle 403 into the storage tank 6 below; at the same time, one end of the dispersion rod 404 is fixedly connected to the movable baffle 403, and the other end is just stuck in the second guide groove 442, so that when the rotating shaft 302 rotates, the rotation stability of the dispersion rod 404 is improved. At the same time, when cleaning the dispersion rod 404, you only need to remove the movable baffle 403 to the right, which is convenient for maintenance operations. Example

[0048] An outer ring plate 8 is provided on the outer wall of the rotating drum 3, an annular groove 801 is provided on the inner wall of the outer ring plate 8, and a connecting rod 802 is welded between the outer ring plate 8 and the supporting ring 2; an axle 611 is provided on the outer wall of the storage tank 6, a roller 612 is matched through the axle 611, and a first bearing 613 is matched between the roller 612 and the axle 611; the roller 612 is matched with the annular groove 801.

[0049] In the above technical solution, the outer ring plate 8 is fixedly connected to the support ring 2 via the connecting rod 802. When the storage tank 6 rotates, the rotation stability of the storage tank 6 is improved through the cooperation between the roller 612 and the outer ring plate 8. Example

[0050] The first transmission belt 702 is a synchronous toothed belt; the synchronous toothed belt can maintain a precise transmission ratio.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A concrete slurry homogenizing mixer for construction and water conservancy construction, comprising a frame (1), characterized in that: Two support rings (2) are arranged at the upper end of the frame (1), a rotating drum (3) is coaxially arranged between the two support rings (2), and bearings are respectively provided between the rotating drum (3) and the support rings (2) on both sides; an end cover (301) is threadedly connected to one end of the rotating drum (3), and a rotating shaft (302) is inserted into the other end; a second bearing and a shaft seal (334) are provided between the rotating shaft (302) and the rotating drum (3), and the shaft seal (334) is sealed in the second bearing. The rotating shaft (302) is inserted into the rotating drum (3) at its end and is provided with a stirring mechanism (4); a driven pulley (303) is installed at the end of the rotating shaft (302) located outside the rotating drum (3); a first motor (5) is provided on the outside of the frame (1); the first motor (5) is connected to a driving pulley (501); a transmission belt (502) is provided between the driven pulley (303) and the driving pulley (501); a rotating shaft (302) is provided on the outer wall of the rotating drum (3); Two connecting pipes (304) are arranged in an annular shape, and a material storage tank (6) is connected to the connecting pipe (304) through a flange; a first ball valve (601) is provided between the material storage tank (6) and the connecting pipe (304); a material pipe (602) is provided at the end of the material storage tank (6) away from the connecting pipe (304); a second ball valve (603) is installed on the material pipe (602); a first driven wheel (311) is installed on the rotating drum (3); a a second motor (7), wherein a first driving wheel (701) is installed at the output end of the second motor (7), and a first transmission belt (702) is provided between the first driven wheel (311) and the first driving wheel (701); a side plate (211) is provided on the side surface of the support ring (2) on one side, and a positioning bolt (212) is screwed into the surface of the side plate (211), and the positioning bolt (212) is screwed inward to abut against the rotating drum (3), and the position of the rotating drum (3) is fixed at this time; The stirring mechanism (4) comprises two dispersion cones (401) arranged symmetrically on the left and right, wherein the diameters of the two dispersion cones (401) gradually decrease towards a connection position; a fixed baffle (402) is arranged at the outer end surface of the dispersion cone (401) on the left; a movable baffle (403) is arranged at the right end position of the dispersion cone (401) on the right; a plurality of dispersion rods (404) are distributed in an annular manner on the left side of the movable baffle (403), wherein the dispersion rods (404) act on the fixed baffle (402); a nut (405) is screwed into the rotating shaft (302), and the nut (405) abuts against the movable baffle (403) after being screwed in; the connecting pipe (304) corresponds to the connection position of the two dispersion cones (401); the diameters of the fixed baffle (402) and the movable baffle (403) are consistent, and a gap of 2 mm to 4 mm is formed between the fixed baffle (402) and the inner wall of the rotating drum (3); A plurality of V-shaped first guide grooves (441) are provided in an annular manner on the outer wall of the movable baffle (403); a plurality of V-shaped second guide grooves (442) are provided in an annular manner on the outer wall of the fixed baffle (402); the first guide grooves (441) and the second guide grooves (442) are staggered; the dispersion rod (404) is located between two adjacent first guide grooves (441), and the dispersion rod (404) is positioned in the second guide groove (442); An outer ring plate (8) is provided on the outer wall of the rotating drum (3), an annular groove (801) is provided on the inner wall of the outer ring plate (8), and a connecting rod (802) is welded between the outer ring plate (8) and the support ring (2); an axle (611) is provided on the outer wall of the storage tank (6), a roller (612) is matched through the axle (611), and a first bearing (613) is matched between the roller (612) and the axle (611); the roller (612) is matched with the annular groove (801).

2. The concrete slurry homogenizing mixer for construction and water conservancy construction according to claim 1, characterized in that: A stabilizing sleeve (333) is provided at the inner axis of the end cover (301), and the right end of the rotating shaft (302) is inserted into the stabilizing sleeve (333) and is clearance-matched with the stabilizing sleeve (333); the clearance is less than 1 mm.

3. The concrete slurry homogenizing mixer for construction and water conservancy construction according to claim 1, characterized in that: The first transmission belt (702) is a synchronous toothed belt.

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