A mortar raw material crushing device

Abstract

The utility model belongs to crushing equipment technical field, concretely relates to a mortar raw material crushing device, including the shell, the shell is from top to bottom sequentially provided with primary crushing cavity and secondary grinding crushing cavity, be equipped with a group of crushing assembly in primary crushing cavity, the bottom of crushing assembly is equipped with a group of baffle, baffle is opposite and all is inclined downward, the coincident part of baffle is connected through a plurality of even arrangement's blocking column, the space of the interval of blocking column and the clearance of two baffle is formed for the raw material passing, secondary grinding crushing cavity includes the guide chute that is located in the inboard of shell, the double roller wheel grinding crushing assembly that is located below the guide chute, double roller wheel grinding crushing assembly is connected with the guide chute, be provided with the filter screen for filtering different particle size raw material between primary crushing cavity and secondary grinding crushing cavity. The utility model can guarantee raw material crushing granularity through two -stage crushing, is favorable for promoting product quality.

Description

Technical Field

[0001] This utility model belongs to the field of crushing equipment technology, and specifically relates to a mortar raw material crushing device. Background Technology

[0002] In construction and other fields, mortar, as an important building material, is widely used in processes such as wall masonry and plastering. The properties of mortar, such as strength and workability, largely depend on the particle size and other characteristics of its raw materials. The raw materials involved in mortar production, such as natural sand and gravel aggregates, recycled industrial solid waste aggregates, and some blocky admixtures, often exist in large lumps in their natural or initial state. These large raw materials cannot directly meet the particle size requirements of mortar production. Direct use would lead to uneven mixing and unstable performance, severely affecting the construction effect and final quality of the mortar. Therefore, to process these raw materials into particles or powders of the required particle size for mortar production, they need to be crushed. Crushing ensures that the particle size of the raw materials reaches a suitable range, thereby guaranteeing uniform mixing among the various raw materials in the mortar, and ultimately ensuring that the mortar possesses good performance characteristics to meet the needs of construction and other applications.

[0003] Existing crushers, when dealing with materials of different hardness and toughness, cannot completely crush them to the required particle size within the set number of crushing cycles and time during operation. This affects the final product (such as mortar, concrete, etc.), causing fluctuations in product performance and even failing to meet relevant standards and usage requirements.

[0004] Furthermore, after the material enters the crushing chamber, it will collide and impact with the crushing components (such as the jaw plates of a jaw crusher and the hammers of a hammer crusher) at high speed. This will cause fine particles on the surface of the material to detach, forming dust that flies around. For example, in a hammer crusher, the hammers strike the material at high speed, and the instantaneous impact force will generate a large amount of dust, which has a great impact on the environment, equipment, and workers.

[0005] Therefore, the above-mentioned problems have become technical issues that urgently need to be solved. Utility Model Content

[0006] Purpose of the utility model: In order to overcome the above deficiencies, this utility model provides a mortar raw material crushing device to solve the above technical problems.

[0007] Technical solution: In order to achieve the above objectives, this utility model provides a mortar raw material crushing device, including a housing, wherein a primary crushing chamber and a secondary grinding and crushing chamber are arranged sequentially from top to bottom on the housing; The primary crushing chamber is provided with a set of crushing components. The bottom of the crushing components is provided with a set of baffles. The baffles are arranged opposite each other and are both inclined downwards. The overlapping parts of the baffles are connected by several evenly arranged baffles. The spacing between the baffles and the gap between the two baffles form a space for the raw material to pass through. The secondary grinding and crushing chamber includes a guide hopper located inside the machine casing and a double roller grinding and crushing assembly located below the guide hopper. The double roller grinding and crushing assembly is connected to the guide hopper. A filter screen for filtering raw materials of different particle sizes is provided between the primary crushing chamber and the secondary grinding and crushing chamber.

[0008] Furthermore, the crushing assembly includes a crushing spindle, which is rotatably mounted on a set of bearings mounted on the housing, and a pulley is provided at one end of the crushing spindle; the crushing spindle is driven to rotate by an external drive device connected to the pulley. Several crushing hammers are evenly distributed on the circumference of the crushing main shaft. The crushing hammers on the two crushing main shafts are staggered. After the material enters the primary crushing chamber, the staggered crushing hammers work together to crush the material more thoroughly.

[0009] Furthermore, the dual-roller grinding and crushing assembly includes a set of crushing rollers, each equipped with interlocking crushing teeth. These interlocking teeth further refine the raw material to achieve the desired particle size.

[0010] Furthermore, the primary crushing chamber is equipped with a dust collection pipe, one end of which is connected to the primary crushing chamber, and the other end is connected to a bag filter. The dust collection pipe is a negative pressure dust collection pipe, and the dust generated during crushing is sucked in by the dust collection pipe and collected in the filter bags of the bag filter. After a certain amount is reached, the dust in the filter bags can be recovered, which can avoid both raw material waste and a series of problems caused by dust.

[0011] Furthermore, a set of vibrating motors is symmetrically arranged at the bottom of the feed hopper. Eccentric blocks are installed at both ends of the vibrating motor rotor shaft. When the motor is energized and rotates, the centrifugal force generated by the eccentric blocks creates a periodically changing excitation force. This excitation force acts on the feed hopper, shaking the raw material on the feed hopper into the double-roller grinding and crushing assembly, preventing material accumulation.

[0012] Furthermore, the top of the casing is provided with a feeding port, which is connected to the primary crushing chamber, and the bottom of the double roller grinding and crushing assembly is provided with a discharge port.

[0013] Furthermore, a guide plate is provided in the middle of the feed inlet. The cross-section of the guide plate is triangular, and the length direction of the guide plate is consistent with the axial direction of the crushing main shaft. After the raw material passes through the feed inlet, it is guided and diverted by the guide plate. The raw material falls onto the crushing shaft and is crushed by the crushing hammer. The landing point is located close to the inner side, avoiding the raw material falling on the outer side and hitting the machine casing.

[0014] Furthermore, the housing is provided with an openable side door, and the housing is also provided with a motor for driving the double roller grinding and crushing assembly.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects: 1. This utility model provides a mortar raw material crushing device with a simple structure and reasonable design. It is equipped with two-stage crushing chambers, and the raw material can reach the required particle size after two crushings, thereby improving product quality. Between the two-stage crushing chambers, baffle plates, baffle columns, filter screens and other components are set to classify and screen the raw material after sequential crushing, ensuring the stable operation of the two-stage crushing.

[0016] 2. This utility model also includes a dust removal pipe connected to a bag filter. The dust generated during crushing is drawn into the bag filter by negative pressure, thus solving the dust problem and avoiding waste of raw materials. Attached Figure Description

[0017] Figure 1 This is a front sectional view of a mortar raw material crushing device according to the present invention; Figure 2 This is a side sectional view of a mortar raw material crushing device according to the present invention.

[0018] In the diagram: 1-machine casing, 2-crushing assembly, 21-crushing main shaft, 22-pulley, 23-crushing hammer, 3-baffle plate, 4-baffle column, 5-guide hopper, 6-double roller grinding and crushing assembly, 61-crushing roller, 62-crushing teeth, 7-filter screen, 8-bag dust collector, 9-vibrating motor, 10-feeding port, 101-guide plate, 11-discharge port, 12-side door, 13-motor. Detailed Implementation

[0019] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] like Figure 1-2 As shown: A mortar raw material crushing device includes a casing 1, and the casing is provided with a primary crushing chamber and a secondary grinding and crushing chamber from top to bottom; The primary crushing chamber is provided with a set of crushing components 2. The bottom of the crushing components 2 is provided with a set of baffle plates 3. The baffle plates 3 are arranged opposite each other and are both inclined downwards. The overlapping parts of the baffle plates 3 are connected by several evenly arranged baffle posts 4. The spacing of the baffle posts 4 and the gap between the two baffle plates 3 form a space for the raw material to pass through. The secondary grinding and crushing chamber includes a guide hopper 5 located inside the housing 1 and a double roller grinding and crushing assembly 6 located below the guide hopper 5. The double roller grinding and crushing assembly 6 is connected to the guide hopper 5. A filter screen 7 for filtering raw materials of different particle sizes is provided between the primary crushing chamber and the secondary grinding and crushing chamber.

[0021] In this embodiment, after the raw material is initially crushed by the crushing component 2, it falls onto the baffle plate 3 and slides down into the gap between the overlapping parts of the two baffle plates 3. The raw material that meets the particle size requirements can pass through the gap and the baffle 4 to complete the initial screening. Then it falls into the filter screen 7. The raw material that meets the requirements after being screened by the filter screen 7 enters the secondary grinding and crushing chamber for further crushing, and finally reaches the required particle size.

[0022] The baffle plate 3 not only effectively prevents hard raw materials from hitting and damaging the filter screen 7, but also crushes the materials impacting it. Therefore, the baffle plate 3 needs to be made of high-strength, high-wear-resistant, and high-toughness materials. The baffle posts 4 support and connect the two baffle plates 3. The spacing between the baffle posts 4 and the upper and lower baffle plates 3 form several grids for preliminary screening of raw materials, preventing large particles from falling onto the filter screen 7 and causing blockage. In addition, the filter screen 7 can be installed on the housing 1 via a quick-release structure, facilitating cleaning and replacement.

[0023] In a preferred embodiment, the crushing assembly 2 includes a crushing spindle 21, which is rotatably mounted on a set of bearings provided on the housing 1, and a pulley 22 is provided at one end of the crushing spindle 21; Several crushing hammers 23 are evenly distributed on the circumferential surface of the crushing main shaft 21, and the crushing hammers 23 on the two crushing main shafts 21 are staggered.

[0024] In a preferred embodiment, the dual-roller grinding and crushing assembly 6 includes a set of crushing rollers 61, and the crushing rollers 61 are provided with interlocking crushing teeth 62.

[0025] In a preferred embodiment, the primary crushing chamber is equipped with a dust collection pipe, one end of which is connected to the primary crushing chamber, and the other end is connected to a bag filter 8. Additionally, water mist nozzles can be installed in the primary crushing chamber to spray water mist onto the dust particles during operation, further improving the dust removal effect in conjunction with negative pressure dust collection. However, this is only applicable to low-viscosity materials.

[0026] In a preferred embodiment, a set of vibrating motors 9 are symmetrically arranged at the bottom of the feed hopper 5.

[0027] In a preferred embodiment, the top of the housing 1 is provided with a feeding port 10, which is connected to the primary crushing chamber, and the bottom of the double roller grinding and crushing assembly 6 is provided with a discharge port 11.

[0028] In a preferred embodiment, a guide plate 101 is provided in the middle of the feeding port 10. The cross-section of the guide plate 101 is triangular, and the length direction of the guide plate 101 is consistent with the axial direction of the crushing main shaft 21.

[0029] In a preferred embodiment, the housing 1 is provided with an openable side door 12, which can be used to clean the inside of the crushing chamber when the machine is stopped, and can also be used to inspect the inside of the device. The housing 1 is also provided with a motor 13 for driving the double roller grinding and crushing assembly 6.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A mortar raw material crushing device, characterized in that, Includes a casing (1), from top to bottom, a primary crushing chamber and a secondary grinding and crushing chamber are arranged sequentially; The primary crushing chamber is provided with a set of crushing components (2), and the bottom of the crushing components (2) is provided with a set of baffles (3). The baffles (3) are arranged opposite each other and are all inclined downwards. The overlapping parts of the baffles (3) are connected by several uniformly arranged baffles (4). The spacing of the baffles (4) and the gap between the two baffles (3) form a space for the raw materials to pass through. The secondary grinding and crushing chamber includes a guide hopper (5) located inside the casing (1) and a double roller grinding and crushing assembly (6) located below the guide hopper (5). The double roller grinding and crushing assembly (6) is connected to the guide hopper (5). A filter screen (7) for filtering raw materials of different particle sizes is provided between the primary crushing chamber and the secondary grinding and crushing chamber; the primary crushing chamber is provided with a dust removal pipe, one end of which is connected to the primary crushing chamber and the other end is connected to a bag filter (8).

2. The mortar raw material crushing device according to claim 1, characterized in that, The crushing assembly (2) includes a crushing spindle (21), which is rotatably mounted on a set of bearings on the housing (1), and a pulley (22) is provided at one end of the crushing spindle (21). A plurality of crushing hammers (23) are evenly distributed on the circumference of the crushing main shaft (21), and the crushing hammers (23) on the two crushing main shafts (21) are staggered.

3. The mortar raw material crushing device according to claim 1, characterized in that, The dual-roller grinding and crushing assembly (6) includes a set of crushing rollers (61), and the crushing rollers (61) are provided with interlocking crushing teeth (62).

4. The mortar raw material crushing device according to claim 1, characterized in that, A set of vibrating motors (9) are symmetrically arranged at the bottom of the feed hopper (5).

5. The mortar raw material crushing device according to claim 2, characterized in that, The top of the housing (1) is provided with a feeding port (10), which is connected to the primary crushing chamber, and the bottom of the double roller grinding and crushing assembly (6) is provided with a discharge port (11).

6. The mortar raw material crushing device according to claim 5, characterized in that, The feed inlet (10) is provided with a guide plate (101) in the middle. The cross section of the guide plate (101) is triangular, and the length direction of the guide plate (101) is consistent with the axial direction of the crushing main shaft (21).

7. The mortar raw material crushing device according to claim 1, characterized in that, The housing (1) is provided with an openable side door (12), and the housing (1) is also provided with a motor (13) for driving the double roller grinding and crushing assembly (6).

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