Cement grinding pretreatment equipment

Abstract

The invention discloses cement grinding pretreatment equipment, and relates to the technical field of cement production equipment. The device comprises an outer shell, a grinding cylinder and a transmission shaft, one end of the outer shell is connected with a feeding pipe, and the other end is connected with a discharging pipe; the grinding cylinder is rotationally connected into the outer shell and is in transmission connection with the driving assembly. Sieve holes are uniformly formed in the side wall of the grinding cylinder, one end of the grinding cylinder is rotationally connected with the feeding pipe, and the feeding pipe extends into the grinding cylinder; one end of the transmission shaft is rotationally connected with the driving assembly, the other end of the transmission shaft extends into the grinding cylinder, the transmission shaft is axially connected with a plurality of supporting rods and rotationally connected with a grinding roller through the supporting rods, the grinding cylinder and the transmission shaft are driven by the driving assembly to rotate in opposite directions, and raw materials in the grinding cylinder are crushed through the grinding roller. Through relative rotation of the crushing cylinder and the transmission shaft, raw materials in the crushing cylinder are crushed through rolling of the crushing rollers, and the problems that an existing crushing effect is poor and the crushing efficiency is low are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of cement production equipment, and in particular relates to cement grinding pre-treatment equipment. Background Art

[0002] Cement grinding is the last and most important key link in controlling cement quality. To a certain extent, the grinding quality can make up for the deficiency of clinker quality and ensure the qualified rate of cement leaving the factory. In order to improve the grinding efficiency and quality, the materials will be rolled and broken up in turn in the grinding process.

[0003] For example, Chinese utility model CN218475360U discloses a cement pre-grinding pretreatment device, in which a transmission rod is arranged to drive a first crushing rod to rotate, and the bottom of the first crushing rod is inclined at a certain angle to the inside of a crushing net, so as to facilitate squeezing block raw materials to the bottom of the first crushing rod to accelerate their grinding and crushing, and the crushing net is pulled left and right by a turntable and a connecting rod to achieve the crushed raw materials falling onto the top of a mounting plate, further screened by a screen and further ground by a second crushing rod.

[0004] In the prior art, it is necessary to incline the bottom of the first crushing rod and the inside of the crushing net at a certain angle to facilitate squeezing the block raw materials to the bottom of the first crushing rod to accelerate their grinding and crushing. However, in the actual processing process, the first crushing rod often pushes the block raw materials to move together, thereby reducing the overall crushing effect and resulting in low overall crushing efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a cement grinding pre-treatment device, which can crush the raw materials inside the crushing cylinder by the relative rotation of the crushing cylinder and the transmission shaft and the rolling of the crushing roller, thereby solving the problems of poor crushing effect and low crushing efficiency.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention discloses a cement grinding pre-treatment device, comprising an outer shell, a crushing cylinder and a transmission shaft, wherein one end of the outer shell is connected to a feed pipe, the other end is connected to a discharge pipe, and is fixedly connected to a driving assembly; the crushing cylinder is rotatably connected to the inside of the outer shell and is transmission-connected to the driving assembly; sieve holes are evenly distributed on the side wall of the crushing cylinder, one end of the crushing cylinder is rotatably connected to the feed pipe, and the feed pipe extends into the crushing cylinder; one end of the transmission shaft is rotatably connected to the driving assembly, and the other end extends into the crushing cylinder, the transmission shaft is axially connected to a plurality of support rods, and is rotationally connected to a crushing roller via the support rods, the crushing cylinder and the transmission shaft are driven to rotate by the driving assembly, and the rotation directions are opposite, and the raw materials inside the crushing cylinder are crushed by the crushing roller.

[0008] As a preferred technical solution of the present invention, the driving assembly includes a driving motor fixedly connected to the outer shell, and the output end of the driving motor is connected to a driving wheel; the transmission shaft is fixedly connected to a driven wheel meshing with the driving wheel.

[0009] As a preferred technical solution of the present invention, the driving assembly also includes a plurality of planetary gears, which are rotatably connected to the inner end wall of the outer shell and are arranged in a circular array relative to the transmission shaft; the transmission shaft is fixedly connected to a sun gear meshing with the planetary gears, and the end wall of the crushing cylinder is fixedly connected to an inner gear ring meshing with the planetary gears.

[0010] As a preferred technical solution of the present invention, a spiral blade is fixedly connected to the outer wall of the crushing cylinder, which is used to transport the raw materials that pass through the sieve holes and enter the outer shell toward the discharge pipe through the spiral blade when the crushing cylinder rotates.

[0011] As a preferred technical solution of the present invention, the plurality of crushing rollers are evenly distributed along the axial direction of the transmission shaft, and are staggered between two adjacent crushing rollers.

[0012] As a preferred technical solution of the present invention, the distances between the plurality of crushing rollers and the inner wall of the crushing cylinder decrease in sequence from the feed pipe toward the discharge pipe.

[0013] As a preferred technical solution of the present invention, crushing teeth are evenly distributed on the circumferential surface of the crushing roller.

[0014] As a preferred technical solution of the present invention, one end of the transmission shaft is rotatably connected to a feed pipe, and the feed pipe is provided with a discharge port.

[0015] As a preferred technical solution of the present invention, the end of the transmission shaft is fixedly connected to a spiral shaft located inside the feed pipe, and the spiral shaft is driven to rotate by the transmission shaft to transport the raw materials from the discharge port into the crushing cylinder.

[0016] As a preferred technical solution of the present invention, the crushing cylinder is rotatably connected between the end wall of the inner gear ring and the transmission shaft.

[0017] The present invention has the following beneficial effects:

[0018] The present invention rotatably connects a crushing cylinder in an outer shell and a transmission shaft in the crushing cylinder. The transmission shaft is rotatably connected to a crushing roller via a support rod. The crushing cylinder and the transmission shaft are driven to rotate by a driving assembly in opposite directions. The rolling of the crushing roller is utilized to crush the raw materials in the crushing cylinder, thereby effectively improving the crushing effect and greatly improving the overall crushing efficiency.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a cement grinding pre-treatment device of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the structure from an upward perspective;

[0023] Figure 3 for Figure 1 A front view of

[0024] Figure 4 for Figure 3 A top view of

[0025] Figure 5 for Figure 4 Sectional view at AA;

[0026] Figure 6 for Figure 4 Sectional view at the middle BB;

[0027] Figure 7 is an internal view of the outer shell;

[0028] Figure 8 for Figure 7 Schematic diagram of the structure from an upward perspective;

[0029] Fig. 9 It is a schematic diagram of the structure of the crushing cylinder and the transmission shaft;

[0030] Fig.10 for Fig. 9 A schematic diagram of the structure from a rear-view perspective;

[0031] Fig.11 It is a schematic diagram of the structure of the transmission shaft;

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1-outer shell, 2-crushing cylinder, 3-transmission shaft, 101-feeding pipe, 102-discharging pipe, 103-driving motor, 104-driving wheel, 105-planetary wheel, 106-discharging port, 201-sieve hole, 202-inner gear ring, 203-spiral sheet, 301-support rod, 302-crushing roller, 303-driven wheel, 304-sun wheel, 305-crushing tooth, 306-spiral shaft. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] See also Figures 1 to 4 As shown, the present invention is a cement grinding pre-treatment device, comprising an outer shell 1, a crushing cylinder 2 and a transmission shaft 3. The outer shell 1 is fixed by a bracket, which is not shown in the figure. One end of the outer shell 1 is connected to a feed pipe 101, and the feed pipe 101 is connected to a feed hopper through a pipeline to facilitate the addition of raw materials. The other end of the outer shell 1 is connected to a discharge pipe 102, and is fixedly connected to a drive assembly.

[0037] like Figure 5 and 6 As shown, the crushing cylinder 2 is rotatably connected to the inside of the outer shell 1 and is in driving connection with the driving assembly; as shown in the figure, both ends of the crushing cylinder 2 are rotatably connected to the inner end wall of the outer shell 1 through the annular guide rail and the slider assembly, and a gap is left between the outer wall of the crushing cylinder 2 and the inner wall of the outer shell 1 to facilitate the storage of the raw materials sieved by the crushing cylinder 2. The side wall of the crushing cylinder 2 is evenly provided with sieve holes 201, and the end wall of one end of the crushing cylinder 2 is rotatably connected to the feed pipe 101, and the feed pipe 101 extends into the crushing cylinder 2.

[0038] like Fig.11 As shown, one end of the transmission shaft 3 is rotatably connected to the driving assembly, and the other end extends into the crushing cylinder 2. The transmission shaft 3 is axially connected to a plurality of support rods 301, and is rotatably connected to a crushing roller 302 through the end of the support rod 301. The crushing cylinder 2 and the transmission shaft 3 are driven to rotate by the driving assembly, and the rotation directions are opposite, so that the transmission shaft 3 drives the crushing roller 302 to move, and the rotation of the crushing cylinder 2 causes the raw materials inside to turn over and move, and the crushing roller 302 is used to crush the raw materials inside the crushing cylinder 2.

[0039] Specifically, Figure 6As shown, the driving assembly includes a driving motor 103 fixedly connected to the outer shell 1 , the output end of the driving motor 103 is connected to a driving wheel 104 , and the transmission shaft 3 is fixedly connected to a driven wheel 303 meshing with the driving wheel 104 .

[0040] like Figure 7 and 9 As shown, the driving assembly also includes four planetary gears 105, which are rotatably connected to the inner end wall of the outer shell 1 and arranged in a circumferential array relative to the transmission shaft 3. The transmission shaft 3 is fixedly connected with a sun gear 304 meshing with the planetary gear 105, and the end wall of the crushing cylinder 2 is fixedly connected with an inner gear ring 202 meshing with the planetary gear 105. The transmission shaft 3 rotates, the sun gear 304 and the planetary gear 105 are used for transmission, and the planetary gear 105 is used for transmission with the inner gear ring 202, thereby driving the transmission shaft 3 and the crushing cylinder 2 to rotate, and the rotation direction is opposite, so that the direction in which the crushing cylinder 2 drives the raw material to turn is opposite to the moving direction of the crushing roller 302, so that the raw material is subjected to forces in two opposite directions and is fully squeezed, which is conducive to ensuring the crushing effect.

[0041] At the same time, the end wall of the crushing cylinder 2 connected to the inner gear ring 202 is rotatably connected to the transmission shaft 3, so that the overall stability and reliability of the transmission position are improved. In addition, a spiral sheet 203 is welded on the outer wall of the crushing cylinder 2, which is used to rotate the crushing cylinder 2 and use the spiral sheet 203 to transport the raw materials entering the outer shell 1 through the sieve hole 201 to the discharge pipe 102, so that the raw materials screened after crushing can be quickly discharged and collected through the discharge pipe 102.

[0042] As a preferred embodiment, Fig.11 As shown, a plurality of crushing rollers 302 are evenly distributed along the axial direction of the transmission shaft 3, and two adjacent crushing rollers 302 are staggered, so that the plurality of crushing rollers 302 are evenly distributed in the circumferential direction of the transmission shaft 3, so that the force on the transmission shaft 3 is more balanced during rotation.

[0043] And, if Figure 5 As shown, the spacing between the plurality of crushing rollers 302 and the inner wall of the crushing cylinder 2 decreases from the feed pipe 101 toward the discharge pipe 102, so that after the raw material passes through the feed pipe 101 and enters the crushing cylinder 2, the spacing between the crushing rollers 302 and the inner wall of the crushing cylinder 2 at this position is large, thereby achieving a preliminary crushing effect. As the crushing cylinder 2 rotates, the raw material gradually moves toward the other end, and as the spacing between the crushing rollers 302 and the inner wall of the crushing cylinder 2 decreases, a step-by-step crushing effect is formed, thereby effectively ensuring the thoroughness of the crushing of the raw material. At the same time, crushing teeth 305 are evenly distributed on the circumferential surface of the crushing roller 302, and the addition of crushing teeth 305 further improves the crushing effect of the raw material.

[0044] like Figure 5 ,6 As shown in Figures 8 and 11, as another preferred embodiment, one end of the transmission shaft 3 is rotatably connected to the feed pipe 101, so that the overall rotation stability and reliability of the transmission shaft 3 are effectively improved.

[0045] At the same time, the feed pipe 101 is provided with a discharge port 106 that is set downward. The end of the transmission shaft 3 is fixedly connected with a spiral shaft 306 located inside the feed pipe 101. The transmission shaft 3 rotates to synchronously drive the spiral shaft 306 to rotate, so that the raw materials are transported from the discharge port 106 into the crushing cylinder 2. Thus, the transmission shaft 3, the crushing cylinder 2 and the spiral shaft 306 can be synchronously driven to rotate by a driving motor 103, so as to achieve the effect of synchronously completing the feeding, discharging and crushing, making the overall transmission more intensive and efficient. In addition, there is no need to control the feeding and discharging operations separately, which effectively improves the overall convenience and practicality of use.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cement grinding pre-treatment equipment, characterized in that: include: An outer shell (1), one end of the outer shell (1) is connected to a feed pipe (101), the other end of the outer shell (1) is connected to a discharge pipe (102), and the outer shell (1) is fixedly connected to a drive assembly; A crushing cylinder (2), the crushing cylinder (2) being rotatably connected to the interior of the outer shell (1) and being transmission-connected to the driving assembly; the side wall of the crushing cylinder (2) is evenly provided with sieve holes (201); one end of the crushing cylinder (2) is rotatably connected to a feed pipe (101), and the feed pipe (101) extends into the crushing cylinder (2); A transmission shaft (3), one end of which is rotatably connected to the driving assembly, and the other end of which extends into the crushing cylinder (2). The transmission shaft (3) is axially connected to a plurality of support rods (301), and is rotatably connected to a crushing roller (302) via the support rods (301). The crushing cylinder (2) and the transmission shaft (3) are driven to rotate by the driving assembly, and the rotation directions are opposite, and the crushing roller (302) is used to crush the raw materials inside the crushing cylinder (2).

2. A cement grinding pre-treatment equipment according to claim 1, characterized in that: The drive assembly comprises a drive motor (103) fixedly connected to the outer shell (1), the output end of the drive motor (103) being connected to a driving wheel (104); and the transmission shaft (3) being fixedly connected to a driven wheel (303) meshing with the driving wheel (104).

3. A cement grinding pre-treatment equipment according to claim 2, characterized in that: The driving assembly further comprises a plurality of planetary wheels (105), the planetary wheels (105) being rotatably connected to the inner end wall of the outer shell (1) and being arranged in a circular array relative to the transmission shaft (3); The transmission shaft (3) is fixedly connected to a sun gear (304) meshing with the planetary gear (105), and the end wall of the crushing cylinder (2) is fixedly connected to an inner gear ring (202) meshing with the planetary gear (105).

4. A cement grinding pre-treatment equipment according to claim 1 or 3, characterized in that: The outer wall of the crushing cylinder (2) is fixedly connected with a spiral blade (203) for conveying the raw materials entering the outer shell (1) through the sieve holes (201) to the discharge pipe (102) by means of the spiral blade (203) through the rotation of the crushing cylinder (2).

5. The cement grinding pre-treatment equipment according to claim 1, characterized in that: The plurality of crushing rollers (302) are evenly distributed along the axial direction of the transmission shaft (3), and are staggered between two adjacent crushing rollers (302).

6. A cement grinding pre-treatment equipment according to claim 1 or 5, characterized in that: The distances between the plurality of crushing rollers (302) and the inner wall of the crushing cylinder (2) decrease in sequence from the feed pipe (101) toward the discharge pipe (102).

7. The cement grinding pre-treatment equipment according to claim 6, characterized in that: Crushing teeth (305) are evenly distributed on the circumferential surface of the crushing roller (302).

8. A cement grinding pre-treatment equipment according to claim 1 or 6, characterized in that: One end of the transmission shaft (3) is rotatably connected to a feed pipe (101), and a discharge port (106) is provided on the feed pipe (101).

9. The cement grinding pre-treatment equipment according to claim 8, characterized in that: The end of the transmission shaft (3) is fixedly connected to a screw shaft (306) located inside the feed pipe (101), and the transmission shaft (3) drives the screw shaft (306) to rotate, thereby conveying the raw materials from the discharge port (106) into the crushing cylinder (2).

10. A cement grinding pre-treatment equipment according to claim 1 or 9, characterized in that: The crushing cylinder (2) is rotatably connected to the end wall of the inner gear ring (202) and the transmission shaft (3).

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