Mixing device for preparing steel slag concrete

Abstract

The invention belongs to the technical field of steel slag concrete production and processing equipment, and particularly relates to a mixing device for steel slag concrete preparation, the mixing device comprises a mixing barrel, a control panel, supporting legs and side supports, the control panel is arranged on the outer side of the mixing barrel, the supporting legs are arranged at the bottom end of the mixing barrel, and the side supports are arranged on the outer sides of the supporting legs. By arranging the multi-stage transmission shaft, the centrifugal tail end self-control disc, the standing pressure-bearing ring, the driven gear and the driving gear, the motor drives the driven gear through the driving gear, the driven gear drives the grading transmission shaft to rotate, and when the grading transmission shaft rotates, the crushing impeller, the stirring turbine and the centrifugal tail end self-control disc rotate at the same time. Through cooperation of the grading transmission shaft, the crushing impeller, the shearing ring and the stirring turbine, steel slag concrete materials can be mixed step by step in the mixing process, large-volume crushing is changed into small-volume crushing, and then turbine turning is carried out, so that steel slag and slag in the materials can be uniformly mixed, and cracking caused by local volume expansion due to contact with water is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of steel slag concrete production and processing equipment, and specifically relates to a mixing device for preparing steel slag concrete. Background Art

[0002] Steel slag concrete is an environmentally friendly building material mainly made of steel slag produced in iron and steel smelting, replacing part of traditional sand and gravel aggregates or used as admixtures. Its core advantage lies in the resource utilization of industrial waste residues, reducing the consumption of natural resources and the accumulation of waste, while reducing carbon emissions. After being pretreated by crushing, magnetic separation, etc., steel slag can improve the wear resistance, compressive strength and durability of concrete, and is suitable for scenarios such as road bases and non-load-bearing walls. However, it should be noted that the potential volume instability of steel slag requires aging or activation technology to ensure the long-term performance stability of the material.

[0003] The prior art has the following deficiencies: In the "a concrete mixing device" with the publication number CN112476759B in the prior art, "it includes a support platform and a mixing tank arranged on the support platform. An injection device is arranged in the mixing tank. A cover plate is fixedly connected to the opening at the upper part of the mixing tank. A rotating device connected to the injection device is arranged on the top surface of the cover plate. A water pumping part communicated with the injection device is also arranged on the support platform".

[0004] The above structure enables the materials in the mixing tank to come into contact with water and mix in a timely manner, and it is not easy for the materials to form small lumps, so as to achieve the effect of high standard performance of the stirred concrete. However, when mixing concrete, this structure uses a single stirring structure for mixing, resulting in poor mixing effect, uneven mixing of steel slag or slag, easy cracking due to internal stress concentration, and a large amount of materials will adhere to the inner wall during the mixing process of the internal concrete materials. If not cleaned in time, it will cause the materials to harden, increasing the internal cleaning difficulty and affecting the next operation. If an internal cleaning structure is installed, an additional driving device is required, resulting in an increase in the equipment usage cost. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a mixing device for preparing steel slag concrete, which solves the problems of uneven single-stage mixing and the inability to achieve rapid self-cleaning inside, resulting in material adhesion.

[0006] To achieve the above object, the present invention provides the following technical solution: A mixing device for preparing steel slag concrete includes a mixing cylinder body, a control panel, support feet and side brackets. The control panel is arranged on the outer side of the mixing cylinder body. The support feet are arranged at the bottom end of the mixing cylinder body. The side brackets are arranged outside the support feet. A motor is arranged at the side end of the side brackets. A shaft seat frame is arranged in the middle above the mixing cylinder body.

[0007] A grading transmission shaft is provided at the lower end of the shaft seat frame. An end centrifugal self-control disc is arranged around the grading transmission shaft. A static pressure bearing ring is arranged around the grading transmission shaft below the end centrifugal self-control disc. A support frame is arranged at the bottom end of the static pressure bearing ring.

[0008] The grading transmission shaft further includes a crushing impeller, a primary sieve plate, a secondary sieve plate and a stirring turbine. The crushing impeller and the stirring turbine are sleeved around the grading transmission shaft, and the primary sieve plate and the secondary sieve plate are movably connected to the grading transmission shaft through a middle bearing structure.

[0009] In some embodiments, the mixing cylinder further includes a scraper, a limiting block, a driven gear, a driving gear, a discharge cylinder and a screw. The scraper is slidably connected to the inner wall end face of the mixing cylinder through the limiting block, and the limiting block is embedded in the inner wall of the mixing cylinder.

[0010] In some embodiments, the driven gear is sleeved around the grading transmission shaft. The tooth groove of the driving gear meshes with the driven gear. The discharge port is inserted into the bottom of the mixing cylinder, and the screw is movably connected to the bottom of the mixing cylinder.

[0011] In some embodiments, the screw needs to establish a connection relationship with an external driving device before use, and a discharge channel is pre-erected at the bottom of the discharge cylinder.

[0012] In some embodiments, the end centrifugal self-control disc further includes an inner ring, a shear ring, a column, a limiting rod, an inclined connecting rod and a movable block. The inner ring is welded to the bottom of the end centrifugal self-control disc, and the column is welded to the top of the shear ring.

[0013] In some embodiments, the limiting rod is inserted into the end centrifugal self-control disc. The inclined connecting rod is movably connected to the movable block, and the movable block is movably connected to the column.

[0014] In some embodiments, the inclined connecting rod is penetrated by the limiting rod. Shaft body structures are arranged through the connecting positions on both sides of the movable block and the inclined connecting rod. The shear ring is movably connected to the end centrifugal self-control disc through the movable block and the inclined connecting rod.

[0015] In some embodiments, the shear ring is a circular structure composed of four groups of arc-shaped structures, and convex shear tooth structures are arranged on both the inner and outer sides of the four groups of arc-shaped structures.

[0016] In some embodiments, five vertical strip structures are arranged on the side of the scraper opposite to the connection with the limiting block, and the spacing of the strip structures is the same as the spacing of the shear teeth on the outer side of the shear ring.

[0017] Compared with the prior art, the present invention provides a mixing device for preparing steel slag concrete:

[0018] A mixing device for preparing steel slag concrete. By setting up a multi-stage transmission shaft, a centrifugal end automatic control disk, a static pressure bearing ring, a support frame, a driven gear and a driving gear, when the device is in use, the operator pours the raw materials of steel slag concrete into the interior of the mixing cylinder from the top and controls the motor through the control panel. After the motor starts, it drives the driven gear through the driving gear, and the driven gear drives the grading transmission shaft to rotate. When the grading transmission shaft rotates, the crushing impeller, the stirring turbine and the centrifugal end automatic control disk rotate simultaneously. The raw materials with a larger single volume are first crushed by collision through the crushing impeller. After the volume of the raw materials is smaller than the round holes of the primary sieve plate, they fall between the centrifugal end automatic control disk and the secondary sieve plate. During the rotation process, the shearing ring divides and grinds the raw materials into smaller structures through the shearing teeth on both the inner and outer sides. Then the raw materials fall into the bottom stirring turbine through the secondary sieve plate. The stirring turbine forces the raw materials to circulate through its own turbine paddle structure and continuously turns them from the outside to the inside. After the mixing of the raw materials is completed, they are discharged through the discharge cylinder. During the above mixing process, the motor controls the rotation speed of the centrifugal end automatic control disk, so that the shearing ring swings outward through the connection of the movable block and the inclined connecting rod. At this time, the inclined connecting rod moves outward around the limiting rod under the action of centrifugal force. When the mixing operation is completed, the operator increases the operating power of the motor. At this time, the rotation speed of the centrifugal end automatic control disk increases, and the shearing ring is thrown outward through the inclined connecting rod and the movable block until the tooth grooves at the outer end of the periphery of the shearing ring contact the strip-shaped grooves on the inner side of the scraper. At this time, the scraper is driven by the shearing ring to rotate synchronously, and the scraper scrapes off the materials on the inner wall of the mixing cylinder through the inclined angle at the side end. When the self-cleaning inside the mixing cylinder is completed, the motor stops running, the rotation speed of the grading transmission shaft decreases continuously, and the rotation speed of the centrifugal end automatic control disk decreases synchronously until the centrifugal force is not enough to support the shearing ring to be thrown out. The tooth grooves on the periphery of the shearing ring gradually disengage from the strip-shaped grooves on the inner wall of the scraper and contact the static pressure bearing ring at the bottom under the action of gravity;

[0019] Through the above settings and processes, the structure has the following beneficial effects:

[0020] 1. Through the cooperation of the grading transmission shaft, the crushing impeller, the shearing ring and the stirring turbine, the steel slag concrete materials can be mixed step by step during the mixing process, broken from large volume to small volume, and then turned by the turbine, so that the steel slag and slag in the materials can be evenly mixed and will not crack due to local volume expansion caused by contact with water.

[0021] 2. Through the cooperation of the scraper, the movable block, the inclined connecting rod, the limiting rod and the shearing ring, the rotation position of the shearing ring can be controlled by the motor speed, and the contact state with the scraper can be adjusted under the control of centrifugal force, and the scraper is driven to complete the self-cleaning of the inner wall of the mixing cylinder. Compared with the current mixing device, there is no need to install an additional electric control cleaning structure, and it can be adjusted only by the operating power of the motor. The operation is simple and can save additional cleaning costs. Brief Description of the Drawings

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the peripheral connection structure of the grading transmission shaft of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure of the bottom drive gear of the present invention;

[0026] Figure 5 This is a schematic diagram of the connection position structure of the inner wall of the mixing cylinder body and the scraper of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection structure of the static pressure bearing ring and the support frame of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection state of the side end of the shear ring and the inner side of the scraper of the present invention;

[0029] Figure 8 This is a schematic diagram of the connection position of the movable block and the inclined connecting rod of the present invention.

[0030] In the figure: 1. Mixing cylinder body; 101. Scraper; 102. Limit block; 103. Driven gear; 104. Driving gear; 105. Discharge cylinder; 106. Screw; 2. Control panel; 3. Support feet; 4. Side bracket; 5. Motor; 6. Axle seat frame; 7. Grading transmission shaft; 701. Crushing impeller; 702. Primary sieve plate; 703. Secondary sieve plate; 704. Stirring turbine; 8. Centrifugal end automatic control plate; 801. Inner ring; 802. Shear ring; 803. Column; 804. Limit rod; 805. Inclined connecting rod; 806. Movable block; 9. Static pressure bearing ring; 10. Support frame. Detailed Description of the Invention

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "equipped with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In this embodiment: A mixing device for preparing steel slag concrete includes a mixing cylinder body 1, a control panel 2, support feet 3, and side brackets 4. The control panel 2 is arranged on the outer side of the mixing cylinder body 1, the support feet 3 are arranged at the bottom end of the mixing cylinder body 1, the side brackets 4 are arranged on the outer side of the support feet 3, a motor 5 is arranged at the side end of the side bracket 4, and a shaft seat frame 6 is arranged in the middle above the mixing cylinder body 1.

[0035] A grading transmission shaft 7 is arranged at the lower end of the shaft seat frame 6. An eccentric end automatic control disc 8 is arranged on the periphery of the grading transmission shaft 7. A static pressure bearing ring 9 is arranged on the periphery of the grading transmission shaft 7 below the eccentric end automatic control disc 8. A support frame 10 is arranged at the bottom end of the static pressure bearing ring 9.

[0036] The grading transmission shaft 7 further includes a crushing impeller 701, a primary sieve plate 702, a secondary sieve plate 703, and a stirring turbine 704. The crushing impeller 701 and the stirring turbine 704 are sleeved on the periphery of the grading transmission shaft 7, while the primary sieve plate 702 and the secondary sieve plate 703 are movably connected to the periphery of the grading transmission shaft 7 through a middle bearing structure.

[0037] In this embodiment, the mixing cylinder body 1 further includes a scraper 101, a limit block 102, a driven gear 103, a driving gear 104, a discharge cylinder 105, and a screw 106. The scraper 101 is slidably connected to the inner wall end face of the mixing cylinder body 1 through the limit block 102, and the limit block 102 is embedded in the inner wall of the mixing cylinder body 1; the driven gear 103 is sleeved on the periphery of the grading transmission shaft 7, the tooth grooves of the driving gear 104 are engaged with the driven gear 103, the discharge is inserted at the bottom of the mixing cylinder body 1, and the screw 106 is movably connected to the bottom of the mixing cylinder body 1.

[0038] Specifically, as Figure 1 and Figure 4 as well as Figure 5 shown, the driving gear 104 drives the driven gear 103, and the driven gear 103 drives the grading transmission shaft 7, and the rotation speed of the grading transmission shaft 7 is controlled by the motor 5.

[0039] In this embodiment, before the screw 106 is used, it needs to establish a connection relationship with an external driving device, and a discharge channel is pre-erected at the bottom of the discharge cylinder 105; the centrifugal end automatic control disk 8 further includes an inner ring 801, a shear ring 802, a column 803, a limiting rod 804, an inclined connecting rod 805 and a movable block 806. The inner ring 801 is welded to the bottom of the centrifugal end automatic control disk 8, and the column 803 is welded to the top of the shear ring 802.

[0040] Specifically, as Figure 2 and Figure 3 as well as Figure 6 shown, when the grading transmission shaft 7 drives the centrifugal end automatic control disk 8 to rotate, the outer shear ring 802 is thrown outward according to the centrifugal force generated by the rotation speed and maintains balance during continuous rotation;

[0041] It should be noted that: in the state of material mixing, the motor 5 cannot operate at the maximum power, and it is necessary to keep the outer shear teeth of the shear ring 802 not in contact with the scraper 101.

[0042] In this embodiment, the limiting rod 804 is inserted into the centrifugal end automatic control disk 8, the inclined connecting rod 805 is movably connected to the movable block 806, and the movable block 806 is movably connected to the column 803; the inclined connecting rod 805 is penetrated by the limiting rod 804, and shaft body structures are provided at the connecting positions on both sides of the movable block 806 and the inclined connecting rod 805 to penetrate through them. The shear ring 802 establishes a movable connection relationship with the centrifugal end automatic control disk 8 through the movable block 806 and the inclined connecting rod 805.

[0043] Specifically, as Figure 7 and Figure 8 shown, the inclined connecting rod 805 is penetrated by the limiting rod 804 and moves outward according to different centrifugal force states. When the inclined connecting rod 805 is at the end of the limiting rod 804, the shear ring 802 can contact the scraper 101 through the extension of the movable block 806 and drive the scraper 101 to rotate.

[0044] In this embodiment, the shear ring 802 is a circular structure composed of four groups of arc-shaped structures, and outer convex shear tooth structures are provided on both the inner and outer sides of the four groups of arc-shaped structures; on the opposite side of the scraper 101 connected to the limiting block 102, five groups of vertical strip structures are provided, and the spacing of the strip structures is the same as the spacing of the outer shear teeth of the shear ring 802.

[0045] Working principle and usage process of the present invention: When using this device, the operator pours the steel slag concrete raw materials into the interior of the mixing cylinder body 1 from the top, and controls the motor 5 through the control panel 2. After the motor 5 is started, it drives the driven gear 103 through the driving gear 104, and the driven gear 103 drives the grading transmission shaft 7 to rotate. When the grading transmission shaft 7 rotates, the crushing impeller 701, the stirring turbine 704, and the centrifugal end automatic control disc 8 rotate simultaneously. The raw materials with a relatively large single volume are first crushed by collision through the crushing impeller 701. After the volume of the raw materials is smaller than the round holes of the primary sieve plate 702, they fall between the centrifugal end automatic control disc 8 and the secondary sieve plate 703. During the rotation process, the shearing ring 802 divides and grinds the raw materials into smaller structures through the shearing teeth on both the inner and outer sides. Then, the raw materials fall to the bottom stirring turbine 704 through the secondary sieve plate 703. The stirring turbine 704 forces the raw materials to circulate through its own turbine blade structure and continuously turns them from the outside to the inside. After the mixing of the raw materials is completed, they are discharged through the discharge cylinder 105. During the above mixing process, the motor 5 controls the rotation speed of the centrifugal end automatic control disc 8, causing the shearing ring 802 to swing outward through the connection of the movable block 806 and the inclined connecting rod 805. At this time, the inclined connecting rod 805 moves outward around the limiting rod 804 under the action of centrifugal force. When the mixing operation is completed, the operator increases the operating power of the motor 5. At this time, the rotation speed of the centrifugal end automatic control disc 8 increases, and the shearing ring 802 is thrown outward through the inclined connecting rod 805 and the movable block 806 until the outer end tooth groove of the shearing ring 802 contacts the strip-shaped groove on the inner side of the scraper 101. At this time, the scraper 101 is driven by the shearing ring 802 to rotate synchronously, and the scraper 101 scrapes off the materials on the inner wall of the mixing cylinder body 1 through the inclined angle at the side end. When the self-cleaning inside the mixing cylinder body 1 is completed, the motor 5 stops operating, the rotation speed of the grading transmission shaft 7 continuously decreases, and the rotation speed of the centrifugal end automatic control disc 8 decreases synchronously until the centrifugal force is insufficient to support the shearing ring 802 from being thrown out. The outer tooth groove of the shearing ring 802 gradually disengages from the strip-shaped groove on the inner wall of the scraper 101 and contacts the static pressure-bearing ring 9 at the bottom under the action of gravity.

[0046] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mixing device for preparing steel slag concrete, comprising a mixing cylinder (1), a control panel (2), a support leg (3) and a side bracket (4), wherein the control panel (2) is arranged on the outside of the mixing cylinder (1), the support leg (3) is arranged at the bottom end of the mixing cylinder (1), the side bracket (4) is arranged on the outside of the support leg (3), a motor (5) is arranged at the side end of the side bracket (4), and an axle seat frame (6) is arranged at the middle part of the upper part of the mixing cylinder (1), characterized in that: A graded transmission shaft (7) is arranged at the lower end of the shaft seat (6), a centrifugal terminal automatic control disk (8) is arranged on the periphery of the graded transmission shaft (7), a stationary pressure-bearing ring (9) is arranged on the periphery of the graded transmission shaft (7) below the centrifugal terminal automatic control disk (8), and a support frame (10) is arranged at the bottom end of the stationary pressure-bearing ring (9); The grading transmission shaft (7) further comprises a crushing impeller (701), a primary sieve plate (702), a secondary sieve plate (703) and a stirring turbine (704); the crushing impeller (701) and the stirring turbine (704) are sleeved on the periphery of the grading transmission shaft (7), while the primary sieve plate (702) and the secondary sieve plate (703) are movably connected to the periphery of the grading transmission shaft (7) via a middle bearing structure.

2. A mixing device for preparing steel slag concrete according to claim 1, characterized in that: The mixing barrel (1) further comprises a scraper (101), a stop block (102), a driven gear (103), a driving gear (104), a discharging barrel (105) and a screw (106); the scraper (101) is slidably connected to the inner wall end face of the mixing barrel (1) via the stop block (102); and the stop block (102) is embedded in the inner wall of the mixing barrel (1).

3. A mixing device for preparing steel slag concrete according to claim 2, characterized in that: The driven gear (103) is sleeved on the outer periphery of the grading transmission shaft (7), the tooth groove of the driving gear (104) is meshed with the driven gear (103), the discharge passage is plugged into the bottom of the mixing barrel (1), and the screw (106) is movably connected to the bottom of the mixing barrel (1).

4. A mixing device for preparing steel slag concrete according to claim 2, characterized in that: The screw rod (106) needs to be connected to an external driving device before use, and a discharge channel needs to be pre-installed at the bottom of the discharge barrel (105).

5. A mixing device for preparing steel slag concrete according to claim 1, characterized in that: The centrifugal terminal automatic control disk (8) further comprises an inner ring (801), a shear ring (802), a column (803), a limit rod (804), an inclined connecting rod (805) and a movable block (806); the inner ring (801) is welded to the bottom of the centrifugal terminal automatic control disk (8), and the column (803) is welded to the top of the shear ring (802).

6. A mixing device for preparing steel slag concrete according to claim 5, characterized in that: The limit rod (804) is inserted into the interior of the centrifugal terminal automatic control disk (8), the tilting connecting rod (805) is movably connected to the movable block (806), and the movable block (806) is movably connected to the column (803).

7. A mixing device for preparing steel slag concrete according to claim 5, characterized in that: The tilting connecting rod (805) is penetrated by the limiting rod (804), and the connecting positions on both sides of the movable block (806) and the tilting connecting rod (805) are provided with shaft structures penetrating therethrough, and the shear ring (802) establishes a movable connection relationship with the centrifugal terminal automatic control disk (8) through the movable block (806) and the tilting connecting rod (805).

8. A mixing device for preparing steel slag concrete according to claim 5, characterized in that: The shear ring (802) is a circular structure composed of four groups of arc-shaped structures, and both inner and outer sides of the four groups of arc-shaped structures are provided with outwardly protruding shear tooth structures.

9. A mixing device for preparing steel slag concrete according to claim 2, characterized in that: Five groups of vertical strip structures are arranged on the opposite side of the scraper (101) where the connection is established with the limit block (102), and the spacing between the strip structures is the same as the spacing between the shear teeth on the outer side of the shear ring (802).

Images