Construction engineering raw material screening and mixing device

Abstract

The utility model discloses a construction engineering raw material screening and mixing device, which relates to the technical field of construction engineering and comprises a mixing tank, an end cover and a mixing mechanism, the end cover is mounted at the top end of the outer wall of the mixing tank, and the middle of the top end of the end cover is butted with a feeding pipeline. When the screening and mixing device for the construction engineering raw materials is used, vertical stirring vortexes and transverse stirring vortexes are formed in the mixing tank through the mixing mechanism, and at the moment, through mutual cooperation of the vertical stirring vortexes and the transverse stirring vortexes, the mixing time is shortened, and the production efficiency is improved; in the process of screening and mixing raw materials, the base can repeatedly collide with the mixing tank, so that the screening net disc is continuously impacted by collision, impurities blocking screening holes of the screening net disc are shaken off, and the situation that the screening effect is reduced due to the fact that the impurities block the screening net disc is prevented. The effects of facilitating rapid mixing and preventing the sieve tray from being blocked are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a raw material screening and mixing device for construction engineering. Background Art

[0002] Construction projects usually include housing construction projects, municipal infrastructure projects, transportation projects, water conservancy projects, mining projects and other fields; the raw material screening and mixing device is a device used to screen and mix raw materials. This device usually combines the two functions of screening and mixing to meet the needs of different industries for raw material processing; in the production and processing of building materials such as concrete, it can be used to screen and mix raw materials such as sand and gravel to ensure the strength and stability of concrete.

[0003] According to the announcement number CN218107397U, a construction engineering raw material screening and mixing device is disclosed. The patent includes a box body, a mixing chamber is provided in the box body, a mixing mechanism is provided in the mixing chamber, a cylindrical groove is vertically provided on the upper end face of the box body, a turntable is vertically slidably connected in the cylindrical groove through a guide mechanism, a plurality of through holes are vertically penetrated through the upper end face of the turntable, a sieve plate is fixedly installed in each of the through holes, a plurality of feed ports corresponding to the through holes are vertically provided between the bottom wall of the cylindrical groove and the top wall of the mixing chamber, and a telescopic tube is sealed and fixedly connected between the lower end opening of each through hole and the upper end opening of the feed port. In the utility model, a turntable is provided, a plurality of through holes are provided on the turntable, and sieve plates with different apertures are installed in the plurality of through holes, so that a variety of raw materials can be screened at the same time, which not only saves space but also improves the screening efficiency of raw materials.

[0004] However, during the use of the above-mentioned patent, the raw materials are mixed only by a single vertical stirring vortex formed by the rotation of the stirring blades. However, this method of mixing raw materials is time-consuming and prone to stirring dead corners, which affects the mixing cycle of the raw materials. As the use time increases, the sieve plate is easily blocked by raw materials with the same sieve hole size, which in turn affects the screening effect of the sieve plate, thereby affecting the use of the raw material screening and mixing device. Utility Model Content

[0005] The purpose of the utility model is to provide a construction engineering raw material screening and mixing device to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction engineering raw material screening and mixing device, comprising a mixing tank, an end cover and a mixing mechanism, the end cover is installed on the top end of the outer wall of the mixing tank, and a feed pipe is connected to the middle of the top end of the end cover, and discharge pipes are connected to both sides of the bottom end of the mixing tank, and the mixing mechanism comprises a screening pipe, a screening mesh plate, a base, a limit block, a spring, a servo motor, a rotating column, a transmission bevel block, a fixed bevel block, a transmission column, a mixing rod, a first bevel gear, a second bevel gear, a stirring rod and a protective box, the bottom end of the outer wall of the feed pipe is slidably connected to the screening pipe, and the middle of the inner wall of the screening pipe is connected to the A screening mesh disk is connected, and a base is welded in the middle of the outer wall of the screening pipe, a spring is connected in the middle of the bottom end of the base, a servo motor is installed in the middle of the top end of the end cover, and a rotating column is docked at the output end of the servo motor, and a transmission bevel block is connected to the top end of the outer wall of the rotating column through a fixed disk, and a fixed bevel block is slidably connected to the bottom end of the outer wall of the transmission bevel block, a transmission column is welded at the bottom end of the outer wall of the rotating column, and mixing rods are sleeved on the upper and lower sides of the outer wall of the transmission column, a No. 1 bevel gear is welded in the middle of the outer wall of the transmission column, and a No. 2 bevel gear is meshed and connected on both sides of the outer wall of the No. 1 bevel gear, and a stirring rod is connected inside the No. 2 bevel gear through a rotating rod.

[0007] Preferably, the mixing rod is in a "cross" shape, the stirring rod is in a hexagonal structure, the bottom end of the transmission column is connected to the bottom end of the inner wall of the mixing tank through a bearing seat, the feed pipes are distributed at equal angles, a protective box is provided on the outside of the No. 2 bevel gear, and the middle part of the outer wall of the protective box is connected to the inner wall of the mixing tank through a supporting inclined plate.

[0008] Preferably, the bottom end of the outer wall of the fixed bevel block is welded to the base, the transmission bevel block and the fixed bevel block are distributed at equal angles, and the bottom end of the transmission bevel block and the top end of the fixed bevel block are both provided with corresponding bevels.

[0009] Preferably, a limiting block is welded to the middle of the outer wall of the base, and the limiting blocks are distributed in a triangular shape. A limiting groove is provided at the top of the inner wall of the mixing tank, and the limiting block extends into the groove.

[0010] Preferably, the bottom end of the outer wall of the spring is connected to the middle of the mixing tank, and the spring is distributed in a "cross" shape, and a fixing ring is welded on one side of the inner wall of the mixing tank close to the base.

[0011] Preferably, a movable groove is provided in the center of the base, and the rotating column extends into the groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: when the construction project raw material screening and mixing device is in use, a vertical stirring vortex and a horizontal stirring vortex are formed in the mixing tank through the mixing mechanism. At this time, the vertical stirring vortex and the horizontal stirring vortex cooperate with each other to shorten the mixing time and improve the production efficiency; and in the process of mixing the raw materials, the base will repeatedly collide with the mixing tank, so that the screening mesh plate is continuously impacted by the collision, and the impurities blocking the sieve holes of the screening mesh plate are shaken off to prevent them from clogging the screening mesh plate and causing the screening effect to decrease, thereby facilitating rapid mixing and preventing the sieve plate from being blocked when the construction project raw material screening and mixing device is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional cutaway structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the hybrid mechanism of the utility model;

[0016] Figure 4 This is a schematic diagram of the three-dimensional cutaway structure of the protective box of the utility model;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the fixed inclined block of the utility model;

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the transmission inclined block of the utility model.

[0019] In the figure: 1. mixing tank; 2. end cover; 3. feed pipe; 4. discharge pipe; 5. mixing mechanism; 501. screening pipe; 502. screening mesh plate; 503. base; 504. limit block; 505. spring; 506. servo motor; 507. rotating column; 508. transmission bevel block; 509. fixed bevel block; 510. transmission column; 511. mixing rod; 512. No. 1 bevel gear; 513. No. 2 bevel gear; 514. stirring rod; 515. protective box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 6The utility model provides a technical solution: a construction engineering raw material screening and mixing device, including a mixing tank 1, an end cover 2 and a mixing mechanism 5, the end cover 2 is installed on the top of the outer wall of the mixing tank 1, and the middle part of the top of the end cover 2 is connected to a feed pipe 3, and the two sides of the bottom of the mixing tank 1 are connected to discharge pipes 4, the mixing mechanism 5 includes a screening pipe 501, a screening mesh plate 502, a base 503, a limit block 504, a spring 505, a servo motor 506, a rotating column 507, a transmission inclined block 508, a fixed inclined block 509, a transmission column 510, a mixing rod 511, a first bevel gear 512, a second bevel gear 513, a stirring rod 514 and a protective box 515, the bottom of the outer wall of the feed pipe 3 The end is slidably connected with a screening pipe 501, and a screening mesh disk 502 is connected to the middle of the inner wall of the screening pipe 501, and a base 503 is welded in the middle of the outer wall of the screening pipe 501, and a spring 505 is connected to the middle of the bottom end of the base 503, a servo motor 506 is installed in the middle of the top end of the end cover 2, and a rotating column 507 is docked at the output end of the servo motor 506, and a transmission bevel block 508 is connected to the top of the outer wall of the rotating column 507 through a fixed disk, and a fixed bevel block 509 is slidably connected to the bottom end of the outer wall of the transmission bevel block 508, a transmission column 510 is welded to the bottom end of the outer wall of the rotating column 507, and mixing rods 511 are sleeved on the upper and lower sides of the outer wall of the transmission column 510, and a A bevel gear 512 is provided, and a second bevel gear 513 is meshedly connected to the outer wall of the first bevel gear 512 on both sides, and a stirring rod 514 is connected to the inside of the second bevel gear 513 through a rotating rod; the mixing rod 511 is in a "cross" shape, and the stirring rod 514 is in a hexagonal structure. The bottom end of the transmission column 510 is connected to the bottom end of the inner wall of the mixing tank 1 through a bearing seat, and the feed pipe 3 is distributed at an equal angle. A protective box 515 is provided on the outside of the second bevel gear 513, and the middle part of the outer wall of the protective box 515 is connected to the inner wall of the mixing tank 1 through a supporting inclined plate; the bottom end of the outer wall of the fixed inclined block 509 is welded to the base 503, and the transmission inclined block 508 and the fixed inclined block 509 are distributed at equal angles. The bottom end of block 508 and the top end of fixed inclined block 509 are both provided with corresponding inclined surfaces; a limiting block 504 is welded to the middle part of the outer wall of base 503, and the limiting block 504 is distributed in a triangle, a limiting groove is provided at the top end of the inner wall of mixing tank 1, and the limiting block 504 extends into it; the bottom end of the outer wall of spring 505 is connected to the middle part of mixing tank 1, and spring 505 is distributed in a "cross" shape, and a fixing ring is welded on the side of the inner wall of mixing tank 1 close to base 503; a movable groove is provided in the center of the inner part of base 503, and rotating column 507 extends into it; the side of rotating rod away from protective box 515 is connected to the inner wall of mixing tank 1 through bearing seat, and the screening pipe 501 and the middle part of mixing tank 1 are slidably connected.

[0022] During specific implementation, in the process of processing building raw material concrete by the raw material screening and mixing device, after the raw material is introduced into the mixing tank 1 through the feed pipe 3, the raw material first passes through the feed pipe 3 to reach the screening pipe 501, and then the raw material is screened by the screening mesh disk 502 inside the screening pipe 501, so that only the raw material that meets the standards passes through the screening mesh disk 502 to reach the bottom of the mixing tank 1, and then the servo motor 506 on the top of the end cover 2 is started. Since the output end of the servo motor 506 is connected to the rotating column 507, the start of the servo motor 506 will drive the rotating column 507 to rotate together, and since the rotating column 507 is connected to the transmission column 510, the upper and lower sides of the transmission column 510 are connected to the mixing rod 511, and the rotating The rotation of the column 507 will drive the transmission column 510 to rotate together, and the rotation of the transmission column 510 will drive the mixing rod 511 to rotate, and then as the mixing rod 511 rotates, it will form a vertical stirring vortex inside the mixing tank 1, and because the middle part of the transmission column 510 is connected to the first bevel gear 512, the rotation of the transmission column 510 will also drive the first bevel gear 512 to rotate together, because the first bevel gear 512 and the second bevel gear 513 are internally meshed, the rotation of the first bevel gear 512 will drive the second bevel gear 513 to rotate, and then the rotation of the second bevel gear 513 will drive the stirring rod 514 to rotate together, and at this time, the first bevel gear 512 and the second bevel gear 513 are protected by the protective box 515;

[0023] Then, two groups of horizontal stirring vortices are formed in the mixing tank 1. At this time, the vertical stirring vortex can achieve mixing in the vertical direction, which helps to break the stratification of the materials. The horizontal stirring vortex can push the materials in the horizontal direction, reduce the stirring dead angle and improve the overall mixing uniformity. Therefore, through the mutual cooperation of the vertical stirring vortex and the horizontal stirring vortex, the materials can be mixed faster, the mixing time can be shortened, and the production efficiency can be improved.

[0024] Because the rotating column 507 is connected to the transmission inclined block 508 through the fixed disk, when the rotating column 507 drives the transmission column 510 to rotate, the transmission inclined block 508 will be driven to rotate together, and because the bottom of the transmission inclined block 508 and the top of the fixed inclined block 509 are provided with corresponding inclined surfaces, the bottom end of the fixed inclined block 509 is connected to the base 503, when the rotating transmission inclined block 508 contacts the fixed inclined block 509, it will generate a downward thrust on the fixed inclined block 509, so that the fixed inclined block 509 drives the base 503 to move downward, because the limiting block 504 is welded in the middle of the outer wall of the base 503, at this time, the limiting block 504 will slide along the inner wall of the mixing tank 1, and then guide the movement of the base 503, so that it moves smoothly, and because the screening pipe 501 and the feeding pipe 3 are in sliding connection, at this time, the screening pipe 501 will slide along the feeding pipe 3, will not hinder the up and down movement of the base 503, and the downward movement will squeeze the spring 505 to cause it to deform;

[0025] Afterwards, as the transmission bevel 508 rotates and disconnects from the fixed bevel 509, the fixed bevel 509 will reset and generate an upward elastic force, thereby causing the base 503 to move up and collide with the mixing tank 1. In the process of the rotating column 507 driving the transmission column 510 to rotate the mixed raw materials, the base 503 will repeatedly collide with the mixing tank 1, thereby causing the screening mesh plate 502 inside the screening pipe 501 to be continuously impacted by the collision, thereby shaking off impurities that block the sieve holes of the screening mesh plate 502, preventing them from clogging the screening mesh plate 502 and causing a decrease in the screening effect, and can extend the clogging time of the screening mesh plate 502 and reduce the frequency of clogging of the screening mesh plate 502, thereby facilitating rapid mixing and preventing clogging of the sieve plate when the raw material screening and mixing device is used in a construction project.

[0026] To sum up, when the construction engineering raw material screening and mixing device is used, a variety of construction raw materials are first introduced into the mixing tank 1 through the feed pipe 3 on the top of the end cover 2, and then the incoming raw materials are screened through the screening mesh disk 502, so that the raw materials that meet the requirements enter the mixing area, and then the incoming construction raw materials are stirred by the high-speed rotation of the mixing rod 511 until the raw materials are mixed and discharged from the mixing tank 1 from the discharge pipe 4. This is the prior art and will not be elaborated on here. A vertical stirring vortex and a horizontal stirring vortex are formed in the mixing tank 1 through the mixing mechanism 5. At this time, the vertical stirring vortex and the horizontal stirring vortex cooperate with each other to shorten the mixing time and improve the production efficiency; and in the process of mixing the raw materials, the base 503 will repeatedly collide with the mixing tank 1, so that the screening mesh disk 502 is continuously impacted by the collision, and the impurities blocking the sieve holes of the screening mesh disk 502 are shaken off to prevent them from blocking the screening mesh disk 502 and causing the screening effect to decrease. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A construction engineering raw material screening and mixing device, comprising a mixing tank (1), an end cover (2) and a mixing mechanism (5), wherein the end cover (2) is installed at the top of the outer wall of the mixing tank (1), and a feed pipe (3) is connected to the middle of the top of the end cover (2), and discharge pipes (4) are connected to both sides of the bottom of the mixing tank (1), characterized in that: The mixing mechanism (5) comprises a screening pipeline (501), a screening mesh disk (502), a base (503), a limit block (504), a spring (505), a servo motor (506), a rotating column (507), a transmission bevel block (508), a fixed bevel block (509), a transmission column (510), a mixing rod (511), a first bevel gear (512), a second bevel gear (513), a stirring rod (514) and a protective box (515); the screening pipeline (501) is slidably connected to the bottom end of the outer wall of the feed pipeline (3); the screening mesh disk (502) is connected to the middle part of the inner wall of the screening pipeline (501); the base (503) is welded to the middle part of the outer wall of the screening pipeline (501); the spring (505) is connected to the middle part of the bottom end of the base (503); ), a servo motor (506) is installed in the middle of the top end of the end cover (2), and a rotating column (507) is connected to the output end of the servo motor (506), and a transmission bevel block (508) is connected to the top end of the outer wall of the rotating column (507) via a fixed disk, and a fixed bevel block (509) is slidably connected to the bottom end of the outer wall of the transmission bevel block (508), a transmission column (510) is welded to the bottom end of the outer wall of the rotating column (507), and mixing rods (511) are sleeved on the upper and lower sides of the outer wall of the transmission column (510), a first bevel gear (512) is welded to the middle of the outer wall of the transmission column (510), and the outer wall of the first bevel gear (512) is meshingly connected to the second bevel gear (513) on both sides, and the inside of the second bevel gear (513) is connected to the stirring rod (514) via a rotating rod.

2. A construction engineering raw material screening and mixing device according to claim 1, characterized in that: The mixing rod (511) has a "cross"-shaped structure, the stirring rod (514) has a hexagonal structure, the bottom end of the transmission column (510) is connected to the bottom end of the inner wall of the mixing tank (1) via a bearing seat, the feed pipes (3) are distributed at equal angles, a protection box (515) is provided outside the second bevel gear (513), and the middle part of the outer wall of the protection box (515) is connected to the inner wall of the mixing tank (1) via a supporting inclined plate.

3. A construction engineering raw material screening and mixing device according to claim 2, characterized in that: The bottom end of the outer wall of the fixed inclined block (509) is welded to the base (503), the transmission inclined block (508) and the fixed inclined block (509) are both distributed at equal angles, and the bottom end of the transmission inclined block (508) and the top end of the fixed inclined block (509) are both provided with corresponding inclined surfaces.

4. A construction engineering raw material screening and mixing device according to claim 3, characterized in that: A limiting block (504) is welded to the middle of the outer wall of the base (503), and the limiting blocks (504) are distributed in a triangular shape. A limiting groove is provided at the top of the inner wall of the mixing tank (1), and the limiting blocks (504) extend into the groove.

5. A construction engineering raw material screening and mixing device according to claim 4, characterized in that: The bottom end of the outer wall of the spring (505) is connected to the middle of the mixing tank (1), and the spring (505) is distributed in a "cross" shape. A fixing ring is welded to one side of the inner wall of the mixing tank (1) close to the base (503).

6. A construction engineering raw material screening and mixing device according to claim 5, characterized in that: A movable groove is provided at the center of the interior of the base (503), and the rotating column (507) extends into the movable groove.

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