A mixing device for permeable brick production

By introducing a pretreatment device into the mixing unit used in the production of permeable bricks, and processing the raw materials with crushing and screening equipment, the problem of unqualified raw materials being mixed in was solved, thereby improving the production quality and uniformity of permeable bricks.

CN224940252UActive Publication Date: 2026-11-06HANGZHOU QUANFENG ENVIRONMENTAL PROTECTION BUILDING MATERIALS CO LTD
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Patent Information

Application Number
CN202522427692.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-17
Publication Date
2026-11-06
Estimated Expiration
2035-11-17

AI Technical Summary

Technical Problem

The existing permeable brick production process lacks raw material pre-screening equipment, which leads to unqualified raw materials being mixed into the mixing process, resulting in quality problems such as uneven pore distribution and reduced structural strength after the permeable bricks are formed.

Method used

A mixing device for permeable brick production was designed, including a pretreatment device. The device uses the crushing blade shaft in the crushing box to crush the agglomerated raw materials and performs preliminary screening through the screening basket to ensure that the raw materials meet the particle size standard. The screening efficiency is improved by combining a vibrating motor and a conveying auger to send the qualified raw materials into the mixing structure.

Benefits of technology

Pretreatment ensures that the quality of raw materials meets production requirements, improves the production process and product quality of permeable bricks, and avoids problems such as unevenness and reduced strength.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of permeable bricks, and in particular to a mixing device for permeable brick production. It includes a mixing device with a stirring structure at its top, and a pretreatment device at the top of the stirring structure. The pretreatment device uses two relatively rotating crushing blade shafts within a crushing chamber to crush agglomerated raw materials, ensuring that all raw materials meet the required particle size standards for production. A screening basket then performs preliminary screening of the raw materials, blocking particles that do not meet the size requirements. Simultaneously, a vibrating motor drives the screening basket to vibrate, improving screening efficiency. The pretreated raw materials are then fed into the stirring structure via a conveying auger in a guide channel, thus achieving quality control of the raw materials before they enter the mixing device, improving the technological level and product quality of permeable brick production.
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Description

Technical Field

[0001] This utility model relates to the field of permeable brick technology, specifically to a mixing device for permeable brick production. Background Technology

[0002] Permeable bricks are a type of green and environmentally friendly building material. The raw materials are mainly environmentally friendly materials such as cement, sand, slag, and fly ash, which are formed under high pressure and cannot be fired at high temperatures. The whole brick is compressed in one go and cannot be pressed in layers to form a homogeneous brick that is consistent from top to bottom without layers.

[0003] The existing mixing equipment used in permeable brick production has a significant technological flaw: the lack of an effective screening system before the raw materials are added to the mixing process. Due to the absence of pre-screening equipment, a large amount of non-compliant raw materials, including incompletely crushed agglomerated materials and particles that do not meet size requirements, are directly introduced into the mixing process. The mixing of these substandard materials directly affects the uniformity of the mixing process, leading to uneven pore distribution and reduced structural strength in the formed permeable bricks, ultimately impacting the product's permeability and mechanical properties.

[0004] Therefore, we propose a mixing device for permeable brick production to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a mixing device for permeable brick production, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution To achieve the above objectives, this utility model specifically adopts the following technical solution: A mixing device for producing permeable bricks includes a mixing device, a mixing structure at the top of the mixing device, and a pretreatment device at the top of the mixing structure. The pretreatment device includes a treatment frame, a guide channel is fixedly installed on the outer wall of the treatment frame, a conveying auger is provided inside the guide channel, the conveying auger is driven by an external drive source, and a connecting pipe is fixedly installed at the other end of the guide channel, the other end of the connecting pipe is connected to a stirring structure.

[0007] Furthermore, the mixing device includes a supporting chassis, a supporting rod is installed at the bottom end of the supporting chassis, the bottom end of the supporting chassis is connected to the ground or platform through the supporting rod, and a discharge valve is provided inside the supporting chassis.

[0008] Furthermore, the top of the support chassis is provided with a rear splicing cylinder and a front splicing cylinder, and the outer edge of the support chassis is rotatably connected with a hinge pin. The outer walls of the rear splicing cylinder and the front splicing cylinder are both fixedly installed with pin connecting plates. The hinge pin is located inside the pin connecting plate and is movably engaged with the inner wall of the pin connecting plate.

[0009] Furthermore, the opposite ends of the rear splicing tube and the front splicing tube are fitted together, and two pin-type insertion plates are fixedly installed on the outer wall of the rear splicing tube. Insertion pins are rotatably connected to both sides of the front splicing tube, and the tail end of the insertion pin is movably inserted into the inside of the pin-type insertion plate.

[0010] Furthermore, both the rear splicing tube and the front splicing tube have embedded grooves on their inner walls, and a sealing strip is provided between the two embedded grooves of the rear splicing tube and the front splicing tube.

[0011] Furthermore, the stirring structure includes a top cover, an external motor is fixedly installed at the top of the top cover, and a stirring shaft is installed on the output shaft of the external motor. The stirring shaft is located below the top cover and extends into the interior of the mixing device.

[0012] Furthermore, the inner wall of the processing rack is provided with a buffer spring rod, the other end of the buffer spring rod is provided with a screening basket, and the top of the screening basket is provided with a vibration motor.

[0013] Furthermore, the top of the processing rack is provided with a movable cover, and a crushing box and a drive reducer are fixedly installed on the top of the movable cover. Two crushing blade shafts are rotatably connected inside the crushing box. The other end of the crushing blade shaft extends to the outside of the crushing box and is fixedly installed with a meshing gear. The output shaft of the drive reducer is fixedly connected with two drive gears, which mesh with the meshing gears. The rotation directions of the two crushing blade shafts are opposite.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a mixing device for the production of permeable bricks, which has the following beneficial effects: This invention utilizes a pretreatment device to crush agglomerated raw materials using two relatively rotating crushing blade shafts within a crushing chamber, ensuring that all raw materials meet the particle size standards required for production. A screening basket then performs preliminary screening, blocking particles that do not meet the size requirements. Simultaneously, a vibrating motor drives the screening basket to vibrate, improving screening efficiency. The pretreated raw materials are then fed into the mixing structure via a conveying auger in a guide channel, thus achieving quality control of the raw materials before they enter the mixing device, thereby improving the technological level and product quality of permeable brick production. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the mixing device of this utility model; Figure 3 This is a schematic diagram of the stirring structure of this utility model; Figure 4 This is a schematic diagram of the pretreatment device of this utility model; Figure 5 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Mixing device; 101. Support chassis; 102. Support rod; 103. Discharge valve; 104. Rear splicing cylinder; 105. Front splicing cylinder; 106. Hinge pin; 107. Pin connecting plate; 108. Pin insertion plate; 109. Insert pin; 110. Embedded groove; 111. Sealing strip; 2. Stirring structure; 201. Top cover; 202. External motor; 203. Stirring shaft; 3. Pretreatment device; 301. Processing frame; 302. Guide channel; 303. Conveying auger; 304. Connecting pipe; 305. Buffer spring rod; 306. Screening basket; 307. Vibrating motor; 308. Movable cover; 309. Crushing box; 310. Crushing blade shaft; 311. Meshing gear; 312. Drive reducer. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example like Figure 1-5 As shown in the figure, an embodiment of the present invention provides a mixing device for the production of permeable bricks, including a mixing device 1, a mixing structure 2 at the top of the mixing device 1, and a pretreatment device 3 at the top of the mixing structure 2.

[0019] The pretreatment device 3 includes a treatment frame 301, a guide channel 302 is fixedly installed on the outer wall of the treatment frame 301, a conveying auger 303 is provided inside the guide channel 302, the conveying auger 303 is driven by an external drive source, and a connecting pipe 304 is fixedly installed at the other end of the guide channel 302, the other end of the connecting pipe 304 is connected to the stirring structure 2.

[0020] The design of the conveying auger 303 can effectively control the conveying speed of raw materials, ensuring that the pre-treated materials enter the mixing structure 2 at a uniform flow rate, and avoiding uneven mixing due to material accumulation or insufficient supply.

[0021] Meanwhile, the external drive source of the conveying auger 303 can be adjusted according to actual production needs, thereby achieving flexible control over conveying efficiency.

[0022] In addition, the guide channel 302 has a reasonable structural design, with smooth inner walls and a certain inclination angle, which can reduce material residue and blockage during the conveying process and further improve the operational stability of the equipment.

[0023] The connecting pipe 304 ensures a seamless connection between the pretreatment device 3 and the stirring structure 2, allowing the material to smoothly transition from the pretreatment stage to the stirring stage, providing a reliable guarantee for the subsequent mixing process.

[0024] like Figure 2 As shown, in some embodiments, the mixing device 1 includes a support chassis 101, a support rod 102 is installed at the bottom end of the support chassis 101, the bottom end of the support chassis 101 is connected to the ground or platform through the support rod 102, and a discharge valve 103 is provided inside the support chassis 101.

[0025] Specifically, the design of the supporting chassis 101 can provide stable support for the entire mixing unit 1, ensuring the stability of the equipment during operation.

[0026] The adjustability of the support rod 102 allows the device to adapt to different installation environments, maintaining level and stability whether placed directly on the ground or fixed on other platforms.

[0027] The discharge valve 103 facilitates the discharge of mixed materials. By controlling the opening and closing of the discharge valve 103, the timing and quantity of discharge can be precisely controlled, avoiding material waste and production process disruption. In addition, the discharge valve 103 has good sealing performance, which can effectively prevent material leakage when not discharging, ensuring the cleanliness of the production environment and the purity of the materials.

[0028] like Figure 2 As shown, in some embodiments, the top of the support chassis 101 is provided with a rear splicing cylinder 104 and a front splicing cylinder 105. The outer edge of the support chassis 101 is rotatably connected with a hinge pin 106. The outer walls of the rear splicing cylinder 104 and the front splicing cylinder 105 are both fixedly installed with pin connecting plates 107. The hinge pin 106 is located inside the pin connecting plate 107 and is movably engaged with the inner wall of the pin connecting plate 107.

[0029] Specifically, the hinge pin 106 and the pin connecting plate 107 can effectively connect the rear splicing cylinder 104 and the front splicing cylinder 105 to the supporting chassis 101, ensuring the stability of the overall structure.

[0030] It effectively prevents loosening caused by equipment vibration or external impact, providing a reliable guarantee for the stable operation of mixing unit 1.

[0031] like Figure 2 As shown, in some embodiments, the opposite ends of the rear splicing tube 104 and the front splicing tube 105 are fitted together. Two pin-type insertion plates 108 are fixedly installed on the outer wall of the rear splicing tube 104. Insertion pins 109 are rotatably connected to both sides of the front splicing tube 105. The tail end of the insertion pin 109 is movably inserted into the interior of the pin-type insertion plate 108.

[0032] Specifically, through the cooperative design of the pin-type insertion plate 108 and the insertion pin 109, the connection between the rear splicing cylinder 104 and the front splicing cylinder 105 is tighter and easier to disassemble. This structure not only enhances the overall sealing performance of the device but also facilitates subsequent maintenance and cleaning.

[0033] In actual operation, users only need to insert the plug pin 109 into the pin body plug plate 108 to complete the assembly. When separation is required, the rear splicing tube 104 and the front splicing tube 105 can be easily separated simply by pulling out the plug pin 109.

[0034] This design simplifies the operation process and ensures that the connection will not become loose due to external force or vibration during operation, further improving the reliability and service life of the device.

[0035] like Figure 2 As shown, in some embodiments, the inner walls of both the rear splicing tube 104 and the front splicing tube 105 are provided with embedded grooves 110, and a sealing strip 111 is provided between the two embedded grooves 110 of the rear splicing tube 104 and the front splicing tube 105.

[0036] Specifically, the sealing strip 111 effectively improves the sealing performance between the rear splicing cylinder 104 and the front splicing cylinder 105, preventing material leakage during the mixing process.

[0037] Made of highly elastic material, it can fit tightly to the surface of the inner groove 110, maintaining a good sealing effect even when the equipment is running for a long time or subjected to vibration.

[0038] In addition, the installation and replacement of the sealing strip 111 is very convenient. Users can simply insert it into the recessed groove 110 to complete the operation without additional tools or complicated steps.

[0039] like Figure 3As shown, in some embodiments, the stirring structure 2 includes a top cover 201, an external motor 202 is fixedly installed on the top of the top cover 201, and a stirring shaft 203 is installed on the output shaft of the external motor 202. The stirring shaft 203 is located below the top cover 201 and extends into the interior of the mixing device 1.

[0040] Specifically, the external motor 202 drives the stirring blades to rotate through the stirring shaft 203, thereby achieving thorough stirring of the materials inside the mixing device 1.

[0041] The length of the stirring shaft 203 and the angle of the stirring blades are precisely designed to ensure good convection of materials within the mixing device 1 and avoid dead zones in the mixing process.

[0042] Meanwhile, the external motor 202 adopts an adjustable speed design, allowing users to flexibly adjust the stirring speed according to the characteristics of different materials and process requirements, thereby obtaining the best mixing effect.

[0043] like Figure 5 As shown, in some embodiments, the inner wall of the processing rack 301 is provided with a buffer spring rod 305, the other end of the buffer spring rod 305 is provided with a screening basket 306, the top of the screening basket 306 is provided with a vibration motor 307, the top of the processing rack 301 is provided with a movable cover 308, the top of the movable cover 308 is fixedly installed with a crushing box 309 and a drive reducer 312, the inside of the crushing box 309 is rotatably connected with two crushing blade shafts 310, the other end of the crushing blade shaft 310 extends to the outside of the crushing box 309 and is fixedly installed with a meshing gear 311, the output shaft of the drive reducer 312 is fixedly connected with two drive gears, the drive gears mesh with the meshing gears 311, and the rotation directions of the two crushing blade shafts 310 are opposite.

[0044] Specifically, the two crushing blade shafts 310 inside the crushing chamber 309 can efficiently crush agglomerated raw materials by rotating relative to each other, ensuring that the raw materials meet the required particle size standards. The power output from the drive reducer 312 is transmitted to the crushing blade shafts 310 through a gear transmission system, so that the two crushing blade shafts 310 run at a stable speed and in opposite directions, which not only improves the crushing effect, but also avoids the problem of material accumulation caused by unidirectional rotation.

[0045] The design of the buffer spring rod 305 provides elastic support for the screening basket 306, enabling it to achieve high-frequency vibration under the action of the vibration motor 307.

[0046] This vibration not only helps improve screening efficiency, but also prevents the 306 mesh of the screening basket from being clogged by fine particles, thus ensuring the continuity and stability of the screening process.

[0047] Meanwhile, the buffer spring rod 305 can effectively absorb the impact force generated during vibration, extending the service life of the equipment.

[0048] When in use, the raw materials are first put into the crushing box 309, and the drive reducer 312 is started. The transmission system drives the two parallel crushing blade shafts 310 to rotate synchronously in opposite directions. The two sets of high-speed rotating blades cooperate with each other to perform strong shearing and impact on the raw materials fed from the feed inlet, thus achieving preliminary crushing.

[0049] Then, the discharge port of the crushing box 309 is opened, and the raw materials that have completed the crushing process fall naturally under their own gravity and enter the screening basket 306 set below.

[0050] At this time, the vibration motor 307 installed on the top of the screening basket 306 starts to work, and the high-frequency excitation force generated causes the screening basket 306 to vibrate regularly, so as to finely screen the crushed raw materials.

[0051] After thorough vibration screening, fine raw material particles that meet the specified particle size requirements pass through the precision mesh structure of the screening basket 306 and smoothly enter the guide channel 302; while larger particles that do not meet the particle size requirements are intercepted in the upper area of ​​the screening basket 306, and then the staff removes these materials and waits for them to be crushed again.

[0052] The conveying auger 303 located below the guide channel 302 starts to operate, and its spiral blades rotate at a constant speed, pushing the qualified raw materials to the feed port of the mixing structure 2 at a uniform and stable conveying speed.

[0053] Meanwhile, an external motor 202 installed on the outside of the stirring structure 2 drives the stirring shaft 203 to rotate through a coupling, which in turn drives multiple sets of stirring blades installed on the shaft to repeatedly tumble and shear the incoming raw materials, ensuring that the various material components are fully and evenly mixed.

[0054] When it is necessary to clean the inside of the mixing device 1, the equipment can be turned off first, and the hinge pin 106 can be rotated and the plug pin 109 can be removed to separate the rear splicing cylinder 104 and the front splicing cylinder 105. Then the sealing strip 111 can be removed to facilitate thorough cleaning of the inner wall and connecting parts.

[0055] During the cleaning process, special attention should be paid to the surfaces of the inner groove 110 and the sealing strip 111 to ensure that no residual material adheres to them in order to maintain good sealing performance.

[0056] In addition, the stirring shaft 203 and blades in the stirring structure 2 can also be cleaned by removing the top cover 201, while the external motor 202 must be kept dry to prevent water or other cleaning agents from seeping in and causing damage.

[0057] The crushing box 309 and screening basket 306 in the pretreatment device 3 can be exposed by the movable cover 308. The design of the vibration motor 307 and the buffer spring rod 305 allows the screening basket 306 to be easily removed, making it convenient to clean or replace its mesh.

[0058] In summary, the pretreatment device 3 uses two relatively rotating crushing blade shafts 310 in the crushing box 309 to crush the agglomerated raw materials, ensuring that all raw materials meet the particle size standards required for production. Then, the screening basket 306 performs preliminary screening of the raw materials, blocking particles that do not meet the particle size requirements. At the same time, the vibration motor 307 drives the screening basket 306 to vibrate, improving the screening efficiency. The pretreated raw materials are sent into the mixing structure 2 through the conveying auger 303 in the guide channel 302, thereby achieving quality control of the raw materials before they enter the mixing device 1, improving the process level and product quality of permeable brick production.

[0059] It should be noted that the specific models and specifications of the external motor 202, vibration motor 307, and drive reducer 312 in the mixing device for permeable brick production need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0060] Furthermore, the power supply and operating principle of the external motor 202, the vibration motor 307, and the drive reducer 312 in the mixing device for permeable brick production are clear to those skilled in the art, and will not be described in detail here.

[0061] Furthermore, the working principles and wiring methods of the external motor 202, vibration motor 307, and drive reducer 312 in the mixing device for permeable brick production are commonplace and belong to conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0062] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mixing device for producing permeable bricks, comprising a mixing device (1), characterized in that: The mixing device (1) is provided with a stirring structure (2) at the top, and a pretreatment device (3) is provided at the top of the stirring structure (2). The pretreatment device (3) includes a treatment frame (301), a guide channel (302) is fixedly installed on the outer wall of the treatment frame (301), a conveying auger (303) is provided inside the guide channel (302), the conveying auger (303) is driven by an external drive source, and a connecting pipe (304) is fixedly installed at the other end of the guide channel (302), the other end of the connecting pipe (304) is connected to the stirring structure (2).

2. The mixing device for permeable brick production according to claim 1, characterized in that: The mixing device (1) includes a support chassis (101), a support rod (102) is installed at the bottom end of the support chassis (101), the bottom end of the support chassis (101) is connected to the ground or platform through the support rod (102), and a discharge valve (103) is provided inside the support chassis (101).

3. The mixing device for permeable brick production according to claim 2, characterized in that: The top of the support chassis (101) is provided with a rear splicing cylinder (104) and a front splicing cylinder (105). The outer edge of the support chassis (101) is rotatably connected with a hinge pin (106). The outer walls of the rear splicing cylinder (104) and the front splicing cylinder (105) are both fixedly installed with pin connecting plates (107). The hinge pin (106) is located inside the pin connecting plate (107) and is movably engaged with the inner wall of the pin connecting plate (107).

4. The mixing device for permeable brick production according to claim 3, characterized in that: The opposite ends of the rear splicing tube (104) and the front splicing tube (105) are fitted together. Two pin-type insertion plates (108) are fixedly installed on the outer wall of the rear splicing tube (104). Insertion pins (109) are rotatably connected to both sides of the front splicing tube (105). The tail end of the insertion pin (109) is movably inserted into the inside of the pin-type insertion plate (108).

5. The mixing device for permeable brick production according to claim 4, characterized in that: The inner walls of the rear splicing tube (104) and the front splicing tube (105) are provided with embedded grooves (110), and a sealing strip (111) is provided between the two embedded grooves (110) of the rear splicing tube (104) and the front splicing tube (105).

6. The mixing device for permeable brick production according to claim 1, characterized in that: The stirring structure (2) includes a top cover (201), an external motor (202) is fixedly installed on the top of the top cover (201), and a stirring shaft (203) is installed on the output shaft of the external motor (202). The stirring shaft (203) is located below the top cover (201) and extends into the interior of the mixing device (1).

7. The mixing device for permeable brick production according to claim 1, characterized in that: The inner wall of the processing rack (301) is provided with a buffer spring rod (305), and the other end of the buffer spring rod (305) is provided with a screening basket (306). The top of the screening basket (306) is provided with a vibration motor (307).

8. The mixing device for permeable brick production according to claim 1, characterized in that: The processing rack (301) is provided with a movable cover (308) at the top. A crushing box (309) and a drive reducer (312) are fixedly installed at the top of the movable cover (308). Two crushing blade shafts (310) are rotatably connected inside the crushing box (309). The other end of the crushing blade shaft (310) extends to the outside of the crushing box (309) and is fixedly installed with a meshing gear (311). Two drive gears are fixedly connected to the output shaft of the drive reducer (312). The drive gears mesh with the meshing gears (311). The rotation directions of the two crushing blade shafts (310) are opposite.