Superfine mineral powder vertical feeding device for double-screw extruder

Abstract

The utility model discloses a vertical superfine mineral powder feeding device for a double-screw extruder, which relates to the technical field of superfine mineral powder processing and comprises a supporting table, a material preparation component is mounted at the top of the supporting table and comprises a damping rod mounted at the top of the supporting table, and a material preparation box is mounted at the top of the damping rod. A feeding opening is formed in the bottom end of the material preparation box, and a switch assembly is installed on the inner side of the feeding opening and comprises a door body movably installed on the inner side of the feeding opening. By installing the telescopic rod and the door body, superfine mineral powder is placed in the material preparation box, when feeding is needed, a user controls the telescopic rod to be shortened, one end of the telescopic rod drives the connecting piece, the downward end of the door body and the downward end of one side of the door body, so that a gap is formed in the door body, and the superfine mineral powder is conveniently fed to the downward end of the door body; a user controls the discharging speed by controlling the gap between the door bodies, operation of the user is facilitated, and the situation of material blockage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafine mineral powder processing, in particular to an ultrafine mineral powder vertical feeding device for a twin-screw extruder. Background Art

[0002] Mineral powder is a high-quality admixture, which is widely used in prefabricated buildings, pipe piles, high-speed rail track plates, ultra-high strength bridges, paint additives, diatom mud, etc. Its main function is to improve the early strength of cement and concrete and improve certain properties of concrete (such as workability, early strength, and hydration heat). It is recognized as an important material for preparing high-performance concrete in the world today. In product production, materials are extruded through a twin-screw extruder.

[0003] Patent document CN212309839U discloses a "vertical feeding structure. It includes a vertically arranged feeding cylinder, a transmission shaft penetrating the cylinder is arranged at the center of the feeding cylinder, the transmission shaft is connected to a sliding bearing, the upper and lower ends of the transmission shaft are positioned by a centering flange, the transmission shaft is provided with auger blades from bottom to top, and a feeding port is arranged on one side of the lower part of the cylinder";

[0004] The above-mentioned feeding device lacks a structure for controlling the material conveying speed, which makes the material conveying speed uncontrollable and prone to blockage. Utility Model Content

[0005] The utility model aims to provide a vertical feeding device for ultrafine mineral powder for a twin-screw extruder, so as to solve the technical problem that the feeding device in the prior art lacks a structure for controlling the material conveying speed, resulting in the material conveying speed being uncontrollable and prone to blockage.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical feeding device for ultrafine mineral powder for a twin-screw extruder, comprising a support platform, a material preparation assembly is installed on the top of the support platform, the material preparation assembly includes a shock-absorbing rod installed on the top of the support platform, a material preparation box is installed on the top of the shock-absorbing rod, a feeding port is installed at the bottom end of the material preparation box, a switch assembly is installed on the inner side of the feeding port, the switch assembly includes a door body movably installed on the inner side of the feeding port, the bottom of the door body is installed on the inner wall of the feeding port through a connecting piece, a telescopic rod is installed on the bottom of the door body through a connecting piece, and the bottom end of the telescopic rod is installed on the inner wall of the feeding port through a connecting piece.

[0007] Preferably, a bearing seat is installed at the bottom of the support platform, and a moving wheel is movably connected to the inner side of the bearing seat.

[0008] Preferably, a transmission component is installed on the top of the support platform, and the transmission component includes a support tube installed on the top of the support platform, a material receiving trough is installed on one side of the support tube, and the material receiving trough is located below the feeding port, and an opening is opened on the inner wall of one side of the support tube, and the opening is located on the inner side of the material receiving trough.

[0009] Preferably, a conveying pipe is installed on the top of the support pipe, a spiral rod is installed on the inner side of the conveying pipe, and the bottom end of the spiral rod is against the inner side of the support pipe.

[0010] Preferably, a discharge pipe is installed on one side of the support tube.

[0011] Preferably, a driven wheel is installed on the top of the spiral rod.

[0012] Preferably, a control motor is installed on the other side of the support tube, a driving wheel is installed on the output end of the control motor, a transmission belt is movably connected to the outer side of the driving wheel, and the driving wheel is connected to the driven wheel through the transmission belt.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model installs the telescopic rod and the door body, and the ultrafine mineral powder is put into the interior of the material preparation box. When loading is needed, the user controls the telescopic rod to shorten, and one end of the telescopic rod drives the connecting piece and the door body to the downward end, and one side of the door body is driven downward to form a gap in the door body, which is convenient for the ultrafine mineral powder to move downward. The user controls the speed of material unloading by controlling the gap between the door bodies, which is convenient for the user to operate and prevents the occurrence of material blockage.

[0015] The utility model is equipped with a moving wheel, which supports a support platform on the top through a bearing seat, and the support platform supports a loading device on the top. The support of the moving wheel reduces the friction of the device, making it convenient for users to push the device to move, and convenient for conveying materials to different equipment according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the transmission pipe of the utility model;

[0019] Figure 4 This is a schematic diagram of the material preparation box structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the door structure of the utility model.

[0021] In the figure: 1. Support platform; 2. Moving wheel; 3. Shock-absorbing rod; 4. Material preparation box; 5. Feeding port; 6. Door body; 7. Telescopic rod; 8. Support pipe; 9. Conveying pipe; 10. Screw rod; 11. Material receiving trough; 12. Driven wheel; 13. Discharge pipe; 14. Control motor; 15. Driving wheel; 16. Transmission belt. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "connected", and "connection" should be understood in a broad sense, for example, it 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides an embodiment: a vertical feeding device for ultrafine mineral powder for a twin-screw extruder, comprising a support platform 1, a material preparation component is installed on the top of the support platform 1, the support platform 1 supports the material preparation component on the top, the material preparation component remains stable, and it is convenient to store the ultrafine mineral powder that needs to be transported, the material preparation component comprises a shock-absorbing rod 3 installed on the top of the support platform 1, a material preparation box 4 is installed on the top of the shock-absorbing rod 3, a feeding port 5 is installed at the bottom end of the material preparation box 4, a switch component is installed on the inner side of the feeding port 5, the switch component comprises a door body 6 movably installed on the inner side of the feeding port 5, the bottom of the door body 6 is installed on the inner wall of the feeding port 5 through a connecting piece, and the bottom of the door body 6 is connected through a connecting piece The connecting piece is installed with a telescopic rod 7, and the bottom end of the telescopic rod 7 is installed on the inner wall of the feeding port 5 through the connecting piece. The support platform 1 fixes the shock-absorbing rod 3 on the top to ensure the stability of the shock-absorbing rod 3. The shock-absorbing rod 3 supports the material preparation box 4 on the top. The shock-absorbing rod 3 can be telescoped to reduce the vibration during feeding. The user puts the ultrafine mineral powder into the material preparation box 4. When feeding is needed, the user controls the telescopic rod 7 to shorten. One end of the telescopic rod 7 drives the connecting piece and the door body 6 to the downward end, and one side of the door body 6 to the downward end, so that a gap appears in the door body 6, which is convenient for the ultrafine mineral powder to move downward. The user controls the feeding speed by controlling the gap between the door bodies 6, which is convenient for the user to operate.

[0025] A bearing seat is installed at the bottom of the support platform 1, and a moving wheel 2 is movably connected to the inner side of the bearing seat. The moving wheel 2 supports the top of the support platform 1 through the bearing seat. The support of the moving wheel 2 reduces the friction of the device, makes it convenient for the user to push the device to move, and facilitates the conveying of materials to different equipment according to needs.

[0026] A transmission component is installed on the top of the support platform 1, and the transmission component includes a support tube 8 installed on the top of the support platform 1, and a material receiving trough 11 is installed on one side of the support tube 8, and the material receiving trough 11 is located below the feeding port 5. An opening is opened on the inner wall of one side of the support tube 8, and the opening is located on the inner side of the material receiving trough 11. The support platform 1 fixes the support tube 8 on the top, and the support tube 8 fixes the material receiving trough 11 on one side. The material receiving trough 11 is used to receive materials dropped from the feeding port 5, and the material receiving trough 11 guides the ultrafine mineral powder into the interior of the support tube 8 through the opening.

[0027] A conveying pipe 9 is installed on the top of the support pipe 8, a spiral rod 10 is installed on the inner side of the conveying pipe 9, the bottom end of the spiral rod 10 is against the inner side of the support pipe 8, a discharge pipe 13 is installed on one side of the support pipe 8, a driven wheel 12 is installed on the top of the spiral rod 10, a control motor 14 is installed on the other side of the support pipe 8, a driving wheel 15 is installed on the output end of the control motor 14, a transmission belt 16 is movably connected to the outer side of the driving wheel 15, and the driving wheel 15 is connected to the driven wheel 12 through the transmission belt 16;

[0028] The conveying pipe 9 supports the inner screw rod 10, and the control motor 14 is fixed on the outer wall of one side of the support pipe 8. The control motor 14 drives the driving wheel 15 at the output end to rotate. The rotation of the driving wheel 15 drives the outer transmission belt 16 to rotate. The rotation of the transmission belt 16 drives the driven wheel 12 to rotate. The rotation of the driven wheel 12 drives the screw rod 10 at the bottom to rotate. The rotation of the screw rod 10 drives the outer spiral blades to rotate. The rotation of the spiral blades drives the ultrafine mineral powder to move vertically upward. The ultrafine mineral powder moves upward to the inside of the discharge pipe 13. The discharge pipe 13 conveys the conveyed material to the inside of the twin-screw extruder.

[0029] Working principle: when feeding is needed, the user controls the telescopic rod 7 to shorten, one end of the telescopic rod 7 drives the connecting piece and the door body 6 to the lower end, and one side of the door body 6 to the lower end, so that a gap appears in the door body 6, which is convenient for the ultra-fine mineral powder to go to the lower end. The user controls the speed of feeding by controlling the gap between the door bodies 6, which is convenient for the user to operate. The ultra-fine mineral powder enters the interior of the receiving trough 11, and the motor 14 is controlled to drive the driving wheel 15 at the output end to rotate. The driving wheel 15 rotates to drive the outer transmission belt 16 to rotate, and the transmission belt 16 rotates to drive the driven wheel 12 to rotate. The driven wheel 12 rotates to drive the screw rod 10 at the bottom to rotate, and the rotation of the screw rod 10 drives the outer spiral blades to rotate. The rotation of the spiral blades drives the ultra-fine mineral powder to move vertically upward, and the ultra-fine mineral powder moves upward to the inside of the discharge pipe 13, and the discharge pipe 13 conveys the material to be fed to the inside of the twin-screw extruder.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A vertical feeding device for ultrafine mineral powder for a twin-screw extruder, characterized in that: The invention comprises a support platform (1), wherein a material preparation assembly is installed on the top of the support platform (1), the material preparation assembly comprises a shock absorbing rod (3) installed on the top of the support platform (1), a material preparation box (4) is installed on the top of the shock absorbing rod (3), a feeding port (5) is installed on the bottom end of the material preparation box (4), a switch assembly is installed on the inner side of the feeding port (5), and the switch assembly comprises a door body (6) movably installed on the inner side of the feeding port (5), the bottom of the door body (6) is installed on the inner wall of the feeding port (5) through a connecting piece, a telescopic rod (7) is installed on the bottom of the door body (6) through a connecting piece, and the bottom end of the telescopic rod (7) is installed on the inner wall of the feeding port (5) through a connecting piece.

2. The device for vertically feeding ultrafine mineral powder for a twin-screw extruder according to claim 1, characterized in that: A bearing seat is installed at the bottom of the support platform (1), and a moving wheel (2) is movably connected to the inner side of the bearing seat.

3. The device for vertically feeding ultrafine mineral powder for a twin-screw extruder according to claim 1, characterized in that: A transmission component is installed on the top of the support platform (1), and the transmission component comprises a support tube (8) installed on the top of the support platform (1); a material receiving trough (11) is installed on one side of the support tube (8), and the material receiving trough (11) is located below the feeding port (5); an opening is provided on the inner wall of one side of the support tube (8), and the opening is located on the inner side of the material receiving trough (11).

4. The device for vertically feeding ultrafine mineral powder for a twin-screw extruder according to claim 3, characterized in that: A conveying pipe (9) is installed on the top of the support pipe (8), a spiral rod (10) is installed on the inner side of the conveying pipe (9), and the bottom end of the spiral rod (10) abuts against the inner side of the support pipe (8).

5. The device for vertically feeding ultrafine mineral powder for a twin-screw extruder according to claim 3, characterized in that: A discharge pipe (13) is installed on one side of the support pipe (8).

6. The device for vertically feeding ultrafine mineral powder for a twin-screw extruder according to claim 4, characterized in that: A driven wheel (12) is mounted on the top of the spiral rod (10).

7. The device for vertically feeding ultrafine mineral powder for a twin-screw extruder according to claim 3, characterized in that: A control motor (14) is installed on the other side of the support tube (8), a driving wheel (15) is installed on the output end of the control motor (14), a transmission belt (16) is movably connected to the outer side of the driving wheel (15), and the driving wheel (15) is connected to the driven wheel (12) via the transmission belt (16).

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