Retarded Portland cement preparation device

Abstract

The utility model discloses a preparation device of retarded Portland cement, which relates to the technical field of Portland cement, and comprises a batching pool, the front end of the batching pool is provided with a feed port, the side surface of the batching pool is provided with a motor, an output shaft of the motor is fixedly connected with a rotating shaft, and the rotating shaft is provided with a feed port. An up-and-down stirring mechanism and a knocking mechanism are arranged in the batching pool, the up-and-down stirring mechanism comprises a fixed plate, a bevel gear B and a rotating gear, the top of the fixed plate penetrates through the fixed plate and is rotationally connected with a rotating rod, and the surface of the rotating rod is slidably connected with a sliding cylinder. Therefore, when the motor is started to drive the rotating shaft to rotate, the bevel gear B, the bevel gear A, the rotating gear, the hydraulic bin and other components are matched to drive the sliding cylinder to rotate and repeatedly move up and down at the same time, so that the stirring paddle can completely stir the inside of the batching pool, and the stirring effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of silicate cement, in particular to a device for preparing slow-setting silicate cement. Background Art

[0002] The technical requirements of ordinary Portland cement clinker are an important indicator to ensure the quality of cement. First of all, the chemical composition of ordinary Portland cement clinker should comply with the standard of GB / T176-2008 "Portland Cement". Among them, the calcium oxide content should be controlled between 2.0% and 3.5%, and the magnesium oxide content should be less than 6.0%. This is because too high calcium oxide content will affect the hardening performance of cement, while too high magnesium oxide content will cause the strength of cement to decrease. In addition, the aluminum oxide content should be controlled between 3.0% and 6.0%, and the iron oxide content should be less than 8.0%. The reasonable control of these indicators can ensure the stable quality of cement clinker. Secondly, the particle gradation of ordinary Portland cement clinker should comply with the standard of GB / T176-2008 "Portland Cement". The particle size of clinker should be controlled below 10%, which is conducive to improving the hardening performance of cement. In addition, the particle distribution of clinker should be uniform to ensure the stable quality of cement. Thirdly, the hydration performance of ordinary Portland cement clinker should comply with the standard of GB / T176-2008 "Portland Cement". The hydration reaction of clinker should be sufficient to ensure the strength and stability of cement. At the same time, the hydration rate of clinker should be moderate, which should not only ensure the hardening speed of cement, but also prevent the cement from hardening prematurely and causing the strength to decrease. In addition, the temperature of ordinary Portland cement clinker should comply with the standard of GB / T176-2008 "Portland Cement". The temperature of clinker should be controlled between 150℃ and 200℃. Too high or too low temperature will affect the quality of cement. The technical requirements of ordinary Portland cement clinker also include other indicators, such as color, odor, impurities, etc. The control of these indicators can ensure the stable quality of cement clinker, thereby improving the quality and performance of cement. Reasonable control of the technical requirements of ordinary Portland cement clinker is crucial to the cement production process. First, reasonable control of chemical composition can ensure the stable quality of cement clinker, thereby improving the quality and performance of cement. Secondly, reasonable control of particle grading can improve the hardening performance of cement. Thirdly, reasonable control of hydration performance can ensure the strength and stability of cement. In addition, temperature control can ensure the stable quality of cement clinker.

[0003] Ordinary Portland cement and slow-setting cement are two types of cement commonly used in construction projects. They have some differences in production process, usage methods and performance characteristics. First of all, the technical indicators of ordinary Portland cement mainly include strength, stability, setting time, hydration heat and sulfate resistance, and it is easy to mix incompletely during stirring. Utility Model Content

[0004] The utility model aims to provide a slow-setting silicate cement preparation device to solve the existing problems.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a slow-setting silicate cement preparation device, comprising a batching tank, a feeding port is provided at the front end of the batching tank, a motor is arranged on the side of the batching tank, an output shaft of the motor is fixedly connected with a rotating shaft, an up-and-down stirring mechanism and a knocking mechanism are arranged inside the batching tank, the up-and-down stirring mechanism comprises a fixed plate, a bevel gear B and a rotating gear, a rotating rod is rotatably connected to the top of the fixed plate, a sliding cylinder is slidably connected to the surface of the rotating rod, a stirring paddle and a disc are fixedly connected to the surface of the sliding cylinder, a bevel gear A is fixedly connected to the top of the rotating rod, a return spring is fixedly connected to the bottom of the sliding cylinder, one end of the return spring away from the bottom of the sliding cylinder is fixedly connected to the bottom of the rotating rod, a hydraulic chamber is traversed and fixedly connected to the top of the fixed plate, a pressure rod is slidably connected to the inner wall piston of one end of the hydraulic chamber, a pressure plate is fixedly connected to the top of the pressure rod, a gear rod is fixedly connected to the top of the pressure plate, a push rod is slidably connected to the inner wall piston of the other end of the hydraulic chamber, and the bevel gear B and the rotating gear are both fixedly connected to the surface of the rotating shaft.

[0007] Furthermore, the bevel gear B is vertically meshed with the bevel gear A, and when the bevel gear B rotates, the bevel gear A is driven to rotate.

[0008] Furthermore, the rotating gear is an incomplete gear, and the teeth on the rotating gear and the gear rod drive the gear rod to move downward when the rotating gear rotates and its upper teeth mesh with the teeth on the gear rod.

[0009] Furthermore, the bottom of the push rod initially contacts the top of the disc, and the bottom of the push rod and the top of the disc are smooth. When the push rod moves downward, the disc will be driven downward, and the friction between the bottom of the push rod and the top of the disc is small and will not affect the rotation of the disc itself.

[0010] Furthermore, the knocking mechanism includes an air pressure chamber and an extrusion block, the air pressure chamber penetrates through and is fixedly connected to the top of the fixed plate, an air bag is provided at one end of the air pressure chamber, and a piston rod is slidably connected to the inner wall piston at the other end of the air pressure chamber, and the end of the piston rod away from the air pressure chamber is fixedly connected to the impact plate, and the extrusion block is fixedly connected to the surface of the rotating shaft.

[0011] Furthermore, the length of the extrusion block is greater than the distance from the surface of the rotating shaft to the airbag, and the airbag is in an expanded state in the initial state. The extrusion block will repeatedly squeeze the airbag when rotating with the rotating shaft. The squeezed airbag will enter the air pressure chamber and push the push rod to move outside the air pressure chamber.

[0012] Furthermore, the impact plate is close to the inner wall of the batching tank in the initial state, and the impact plate is made of rubber. When the impact plate moves, it will hit the inner wall of the batching tank. The impact plate made of rubber is elastic and will not cause damage to the inner wall of the batching tank.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is provided with an up and down stirring mechanism, so that when the motor is turned on to drive the rotating shaft to rotate, the cooperation of the bevel gear B, bevel gear A, rotating gear, hydraulic bin and other components will drive the slide to rotate and move up and down repeatedly, so that the stirring paddle can completely stir the ingredients in the batching tank, thereby improving the stirring effect.

[0015] 2. The utility model is provided with a knocking mechanism, so that when the motor is turned on to drive the rotating shaft to rotate, the impact plate will be driven by the extrusion block, air bag, air pressure chamber and other components to repeatedly hit the inner wall of the batching pool, so that the inner wall of the batching pool will vibrate slightly, shaking off the raw materials adhered thereto.

[0016] 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

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 It is a three-dimensional schematic diagram of the structure of the up and down stirring mechanism of the utility model;

[0021] Figure 4 It is a three-dimensional cross-sectional view of the upper and lower stirring mechanism structure of the utility model;

[0022] Figure 5It is a three-dimensional schematic diagram of the striking mechanism structure of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Batching tank; 2. Feed inlet; 3. Motor; 4. Rotating shaft; 5. Up and down stirring mechanism; 51. Fixed plate; 52. Rotating rod; 53. Slide; 54. Stirring paddle; 55. Bevel gear A; 56. Return spring; 57. Disc; 58. Hydraulic chamber; 59. Pressing rod; 510. Pressing plate; 511. Gear rod; 512. Bevel gear B; 513. Rotating gear; 514. Push rod; 6. Knocking mechanism; 61. Air pressure chamber; 62. Air bag; 63. Piston rod; 64. Impact plate; 65. Extrusion block. DETAILED DESCRIPTION

[0025] 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 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.

[0026] See also Figure 1-5 The utility model discloses a slow-setting silicate cement preparation device, comprising a batching tank 1, a feeding port 2 is provided at the front end of the batching tank 1, a motor 3 is arranged on the side of the batching tank 1, an output shaft of the motor 3 is fixedly connected with a rotating shaft 4, an upper and lower stirring mechanism 5 and a knocking mechanism 6 are arranged inside the batching tank 1, the upper and lower stirring mechanism 5 comprises a fixed plate 51, a bevel gear B512 and a rotating gear 513, a rotating rod 52 is rotatably connected to the top of the fixed plate 51, a sliding cylinder 53 is slidably connected to the surface of the rotating rod 52, a stirring paddle 54 and a disc 57 are fixedly connected to the surface of the sliding cylinder 53, and a top of the rotating rod 52 is fixedly connected to the rotating rod 52. A bevel gear A55 is fixedly connected to the inner bottom of the slide 53, and a return spring 56 is fixedly connected to the bottom of the rotating rod 52 at one end of the return spring 56 away from the inner bottom of the slide 53. A hydraulic chamber 58 is fixedly connected to the top of the fixed plate 51. A pressure rod 59 is slidably connected to the inner wall piston of one end of the hydraulic chamber 58, and a pressure plate 510 is fixedly connected to the top of the pressure rod 59. A gear rod 511 is fixedly connected to the top of the pressure plate 510, and a push rod 514 is slidably connected to the inner wall piston of the other end of the hydraulic chamber 58. The bevel gear B512 and the rotating gear 513 are both fixedly connected to the surface of the rotating shaft 4.

[0027] Bevel gear B512 is meshed vertically with bevel gear A55, and when bevel gear B512 rotates, it will drive bevel gear A55 to rotate.

[0028] The rotating gear 513 is an incomplete gear, and the teeth on the rotating gear 513 and the gear rod 511 are engaged with each other. When the rotating gear 513 rotates and its upper teeth mesh with the teeth on the gear rod 511 , the gear rod 511 is driven to move downward.

[0029] In the initial state, the bottom of the push rod 514 conflicts with the top of the disk 57, and the bottom of the push rod 514 and the top of the disk 57 have smooth surfaces. When the push rod 514 moves downward, it will drive the disk 57 to move downward, and the friction between the bottom of the push rod 514 and the top of the disk 57 is small and will not affect the rotation of the disk 57 itself.

[0030] The knocking mechanism 6 includes an air pressure chamber 61 and an extrusion block 65. The air pressure chamber 61 passes through and is fixedly connected to the top of the fixed plate 51. An air bag 62 is provided at one end of the air pressure chamber 61. The inner wall piston at the other end of the air pressure chamber 61 is slidably connected to a piston rod 63. The end of the piston rod 63 away from the air pressure chamber 61 is fixedly connected to an impact plate 64. The extrusion block 65 is fixedly connected to the surface of the rotating shaft 4.

[0031] The length of the extrusion block 65 is greater than the distance from the surface of the rotating shaft 4 to the airbag 62, and the airbag 62 is in an expanded state in the initial state. The extrusion block 65 will repeatedly squeeze the airbag 62 when rotating with the rotating shaft 4. The squeezed airbag 62 and the air pressure inside it will enter the air pressure chamber 61 and push the push rod 514 to move outside the air pressure chamber 61.

[0032] In the initial state, the impact plate 64 is close to the inner wall of the batching tank 1, and the impact plate 64 is made of rubber. When the impact plate 64 moves, it will hit the inner wall of the batching tank 1. The impact plate 64 made of rubber is elastic and will not cause damage to the inner wall of the batching tank 1.

[0033] A specific application of this embodiment is: the raw materials are put into the batching tank 1 through the feed port 2, the motor 3 is turned on to drive the rotating shaft 4 to rotate, the rotation of the rotating shaft 4 will drive the bevel gear B512 to rotate, the rotation of the bevel gear 512 will drive the bevel gear A55 to rotate, the rotation of the bevel gear A55 will drive the rotating rod 52 to rotate, the rotation of the rotating rod 52 drives the slide 53 to rotate, the rotation of the slide 53 drives the stirring paddle 54 to rotate for stirring, and at the same time, the rotation of the rotating shaft 4 will also drive the rotating gear 513 to rotate. At the beginning, the rotating gear B513 rotates and its upper teeth are aligned with the teeth on the gear rod 511. When the teeth are engaged, the gear rod 511 is driven to move downward, the gear rod 511 is driven to move downward, the pressure plate 510 is driven to move downward, the pressure plate 510 is driven to move downward, the pressure rod 59 is driven to move downward, the pressure rod 59 is driven to move downward by the air pressure in the air pressure chamber 61, the push rod 514 is driven downward by the air pressure in the air pressure chamber 61, the push rod 514 is driven downward by the disc 57, the disc 57 is driven downward by the slide 53, the return spring 56 is stretched, and when the rotating gear 513 is rotated to the toothless part to be out of engagement with the gear rod 511, the return spring 56 rebounds and drives the slide 53 downward. 3 moves upward, the slide 53 moves upward to drive the disc 57 to move upward, the disc 57 moves upward to drive the push rod 514 to move upward to restore, the push rod 514 moves upward to restore through the air pressure in the air pressure chamber 61 to drive the pressure rod 59 to move upward to restore, the pressure rod 59 moves upward to restore and drives the pressure plate 510 and the gear rod 511 to move upward to restore, thereby forming a cycle, by driving the slide 53 to rotate and move up and down repeatedly, so that the stirring paddle 54 can completely stir the ingredients in the batching tank 1, thereby improving the stirring effect, and the extrusion block 65 follows the rotating shaft 4 When rotating, the airbag 62 will be squeezed repeatedly. The air pressure inside the airbag 62 will enter the air pressure chamber 61 and push the push rod 514 to move out of the air pressure chamber 61. The movement of the push rod 514 will drive the impact plate 64 to move and hit the inner wall of the batching pool 1. When the squeezing block 65 leaves the airbag 62, the airbag 62 will rebound. At this time, the air pressure returns to the airbag 62, and the push rod 514 drives the impact plate 64 to move in the opposite direction to restore. The impact plate 64 repeatedly hits the inner wall of the batching pool 1, causing the inner wall of the batching pool 1 to vibrate slightly, shaking off the raw materials adhering to it.

[0034] 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 utility model. 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.

[0035] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model 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 utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A slow-setting silicate cement preparation device, comprising a batching tank (1), characterized in that: The front end of the batching tank (1) is provided with a feed inlet (2), a motor (3) is arranged on the side of the batching tank (1), an output shaft of the motor (3) is fixedly connected to a rotating shaft (4), and an up-and-down stirring mechanism (5) and a knocking mechanism (6) are arranged inside the batching tank (1); The up-and-down stirring mechanism (5) comprises a fixed plate (51), a bevel gear B (512) and a rotating gear (513); a rotating rod (52) is rotatably connected to the top of the fixed plate (51); a sliding cylinder (53) is slidably connected to the surface of the rotating rod (52); a stirring paddle (54) and a disc (57) are fixedly connected to the surface of the sliding cylinder (53); a bevel gear A (55) is fixedly connected to the top of the rotating rod (52); a return spring (56) is fixedly connected to the inner bottom of the sliding cylinder (53); the return spring (56) is away from the sliding cylinder (53). One end of the inner bottom is fixedly connected to the bottom of the rotating rod (52); the top of the fixed plate (51) is cut and fixedly connected with a hydraulic chamber (58); the inner wall piston at one end of the hydraulic chamber (58) is slidably connected with a pressure rod (59); the top of the pressure rod (59) is fixedly connected with a pressure plate (510); the top of the pressure plate (510) is fixedly connected with a gear rod (511); the inner wall piston at the other end of the hydraulic chamber (58) is slidably connected with a push rod (514); the bevel gear B (512) and the rotating gear (513) are both fixedly connected to the surface of the rotating shaft (4).

2. A slow setting silicate cement preparation device according to claim 1, characterized in that: The bevel gear B (512) is vertically meshed with the bevel gear A (55).

3. A slow setting silicate cement preparation device according to claim 2, characterized in that: The rotating gear (513) is an incomplete gear, and the teeth on the rotating gear (513) are aligned with the gear rod (511).

4. A slow setting silicate cement preparation device according to claim 3, characterized in that: The bottom of the push rod (514) is in contact with the top of the disc (57) in an initial state, and the bottom of the push rod (514) and the top of the disc (57) have smooth surfaces.

5. A slow setting silicate cement preparation device according to claim 4, characterized in that: The knocking mechanism (6) comprises an air pressure chamber (61) and an extrusion block (65), wherein the air pressure chamber (61) penetrates through and is fixedly connected to the top of the fixed plate (51), an air bag (62) is arranged at one end of the air pressure chamber (61), a piston rod (63) is slidably connected to the inner wall piston at the other end of the air pressure chamber (61), an end of the piston rod (63) away from the air pressure chamber (61) is fixedly connected to an impact plate (64), and the extrusion block (65) is fixedly connected to the surface of the rotating shaft (4).

6. A slow setting silicate cement preparation device according to claim 5, characterized in that: The length of the extrusion block (65) is greater than the distance from the surface of the rotating shaft (4) to the airbag (62), and the airbag (62) is in an expanded state in an initial state.

7. A slow setting silicate cement preparation device according to claim 6, characterized in that: In an initial state, the impact plate (64) is close to the inner wall of the batching tank (1), and the impact plate (64) is made of rubber.

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