Movable production box
By designing a sloping box and a spiral feed pipe for the mobile production box, the problems of high residue and clogging in traditional mixing boxes are solved, achieving efficient material conveying and simplified maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN LUOJUE BUILDING MATERIALS CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional mobile mixing tanks suffer from high residue rates and pipe blockages, leading to material waste and cross-contamination. Furthermore, existing unclogging methods are energy-intensive and complex to maintain.
The bottom of the housing is designed to be sloping, with a horizontal discharge pipe installed on the side and a spiral feed pipe. Combined with the stirring blades, a stable spiral flow field is formed, reducing the resistance coefficient and preventing blockage.
It effectively reduces residue rate, lowers the risk of pipeline blockage, improves material conveying efficiency, and simplifies the maintenance process.
Smart Images

Figure CN224170125U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to a mobile production box. Background Technology
[0002] A concrete admixture mixing tank, also known as a mobile production tank, is a mobile device that integrates functions such as batching and mixing.
[0003] Traditional mobile mixing tanks have two major technical drawbacks: 1) the flat-bottomed tank has a high residue rate of 4%-7%, leading to material waste and cross-contamination; 2) viscous raw materials are prone to forming plunger flow and clogging the pipes during straight-pipe feeding. Existing technologies use vibration-assisted discharge and air pressure unblocking, but these suffer from high energy consumption and complex maintenance. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0005] Therefore, one objective of this utility model is to propose a mobile production box to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.
[0006] To achieve the above objectives, one embodiment of the present invention provides a mobile production box, including support legs, a box body, and wheels, wherein the top end of the support leg is connected to the box body, and the bottom end of the support leg is equipped with wheels.
[0007] The bottom surface of the box is sloping, and a discharge pipe is installed at the lowest point of the side of the box. A manual valve is installed on the discharge pipe.
[0008] A bridge frame is fixedly connected to the top of the box, a geared motor is installed in the middle of the top surface of the bridge frame, a main shaft is fixedly connected to the output end of the geared motor, and multiple sets of stirring blades are fixedly connected to the outer surface of the main shaft.
[0009] The top surface of the housing is fixedly connected to several interfaces, and the top of each interface is fixedly connected to a spiral feed pipe. The main shaft is movably connected to the top surface of the housing.
[0010] Preferably, in any of the above embodiments, the top of the support leg is welded to the surface of the housing, and the discharge pipe is installed horizontally.
[0011] The above technical solution is adopted: This device is a mobile production box, which is specially used for the production and mixing of concrete admixtures.
[0012] The working process is simplified as follows: various raw materials are quantitatively added into the box through the spiral feed pipe, one pipe for one use. Then the geared motor is started, the stirring blades stir and mix the internal liquid, and finally the manual valve is opened to output the finished product through the discharge pipe.
[0013] The above technical solution is adopted: In this device, the bottom surface of the box is designed as a slope, and a horizontal discharge pipe is installed at the lowest point of the side of the box, which can facilitate the discharge of the mixed liquid finished product inside the box and prevent residue; the addition pipeline is improved and designed as a spiral feed pipe, so that the fluid forms a stable spiral flow field in the pipe, reducing the friction coefficient and solving the clogging problem when adding raw materials.
[0014] Preferably, of any of the above solutions, the cable tray is welded to the housing, and the geared motor is installed vertically.
[0015] Preferably, in any of the above schemes, the main shaft is riveted to the root of the stirring blades, and multiple sets of stirring blades are linearly arrayed on the main shaft.
[0016] The above technical solution is adopted: Structural design:
[0017] The box body adopts a single-sloped bottom design with a tilt angle α = 5° ± 1°;
[0018] A horizontal discharge pipe (80mm diameter) is installed at the bottom;
[0019] Four sets of spiral feed pipes (pitch H = 150 mm) are installed at the top.
[0020] Preferably, in any of the above solutions, the bottom opening of the interface leads into the housing, and the inclination angle of the spiral feed pipe is 55-60 degrees.
[0021] Powdered materials enter the box through segmented feeding via a spiral feed pipe;
[0022] The stirring blades form a laminar stirring layer under the action of liquid-solid coupling;
[0023] After shutdown, the residual liquid flows by gravity through a 5° slope to complete the discharge.
[0024] Preferably, the spiral feed tube 11 is made of stainless steel, as described in any of the above embodiments.
[0025] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0026] This mobile production box, through the coordinated arrangement of the box body, discharge pipe, manual valve, bridge frame, geared motor, main shaft, stirring blade, interface, and spiral feed pipe, features a sloping bottom surface and a horizontal discharge pipe installed at the lowest point of the side of the box. This facilitates the complete drainage of the mixed liquid product inside the box, minimizing residue. The addition pipeline has been improved by designing a spiral feed pipe, which creates a stable spiral flow field within the pipe, reducing the friction coefficient and solving the clogging problem during raw material addition.
[0027] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0028] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0029] Figure 1 This is a first-view structural schematic diagram of the present invention;
[0030] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;
[0031] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;
[0032] Figure 4 This is a schematic diagram of the internal stirring blades of this utility model.
[0033] In the diagram: 1-support leg, 2-box body, 3-moving wheel, 4-discharge pipe, 5-manual valve, 6-bridge frame, 7-gear motor, 8-main shaft, 9-stirring blade, 10-interface, 11-spiral feed pipe. Detailed Implementation
[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] like Figures 1-4 As shown, this mobile production box includes support legs 1, box body 2, and casters 3. The top of the support legs 1 is connected to the box body 2, and the bottom of the support legs 1 is equipped with casters 3.
[0037] The bottom surface of the box 2 is sloping, and the lowest point of the side of the box 2 is equipped with a discharge pipe 4, and a manual valve 5 is installed on the discharge pipe 4.
[0038] A bridge frame 6 is fixedly connected to the top of the box 2. A geared motor 7 is installed in the middle of the top surface of the bridge frame 6. A main shaft 8 is fixedly connected to the output end of the geared motor 7. Multiple sets of stirring blades 9 are fixedly connected to the outer surface of the main shaft 8.
[0039] Several interfaces 10 are fixedly connected to the top surface of the housing 2, and a spiral feed pipe 11 is fixedly connected to the top of the interfaces 10. The main shaft 8 is movably connected to the top surface of the housing 2.
[0040] Example 1: The top of the support leg 1 is welded to the surface of the housing 2, and the discharge pipe 4 is installed horizontally. This device is a mobile production box specifically for the production and mixing of concrete admixtures. The bridge frame 6 is welded to the housing 2, and the geared motor 7 is installed vertically. The main shaft 8 is riveted to the root of the stirring blades 9, and multiple sets of stirring blades 9 are linearly arrayed on the main shaft 8. The bottom opening of the interface 10 leads into the housing 2, and the inclination angle of the spiral feed pipe 11 is 55-60 degrees. The spiral feed pipe 11 is made of stainless steel. Through the segmented feeding of the spiral feed pipe 11, the powder material enters the housing 2;
[0041] The stirring blade 9 forms a laminar flow stirring layer under the action of liquid-solid coupling;
[0042] After shutdown, the residual liquid flows by gravity through a 5° slope to complete the discharge.
[0043] Example 2: Structural Design:
[0044] Box 2 adopts a single-sloped bottom design with a tilt angle α = 5° ± 1°;
[0045] A horizontal discharge pipe 4 (diameter Φ80mm) is installed at the bottom;
[0046] Four sets of spiral feed pipes 11 (pitch H = 150 mm) are installed at the top.
[0047] Example 3:
[0048] A mobile production box is implemented as follows: The box body 2 is welded from 304 stainless steel, and the bottom surface is machined into a slope structure with an inclination angle of 5.5° (α=5°±1°). A horizontal discharge pipe 4 is welded to the lowest point of the bottom of the box body 2, using a standard DN80 pipe diameter, and is externally connected to a manual butterfly valve to control the discharge. A bridge frame 6 platform is welded to the top, and a 7.5kW vertical geared motor 7 is installed. The output shaft is connected to a 120mm diameter main shaft 8 through a flange. Six sets of paddle-type stirring blades 9 are evenly distributed on the main shaft 8, with a blade spacing of 300mm between each set, and are fixed by riveting. Four DN50 feeding interfaces are set at the top, and each interface is connected to a spiral feeding pipe 11. This pipe section is made of 3mm thick stainless steel pipe cold-bent, with the pitch strictly controlled at 150mm and the installation inclination angle of 58°±2°. The support legs 1 are made of H-beam welded frames, and heavy-duty universal wheels are installed at the bottom. During implementation, the powder material is accelerated to fall through the spiral tube, the liquid raw material has its flow resistance reduced through the spiral tube, and the mixed material forms a laminar flow under the action of the double-layer stirring blades. The residual rate of the box 2 is measured to be reduced to 0.8% during discharge.
[0049] Another embodiment: The bottom inclination angle of the housing 2 is adjusted to 6°, and the discharge pipe 4 uses a Φ80mm PTFE-lined composite pipe. The main shaft 8 is equipped with 8 sets of specially designed 45° inclined impeller blades 9, with the blade surface coated with a tungsten carbide wear-resistant layer. The spiral feed pipe is improved to a variable pitch structure, with the inlet section pitch transitioning from 200mm to the outlet section pitch of 100mm, and the installation inclination angle is set to 60° to improve powder conveying efficiency. An intelligent control system is configured to automatically activate the compressed air pulse backflushing device when the pressure sensor in the feed pipe detects an abnormal increase in pressure. Actual tests show that this structure increases the conveying efficiency of viscous raw materials (viscosity > 5000cP) by 40%, maintains stable feeding even at -10℃ low-temperature conditions, reduces the pipe blockage rate to 0.3 times per month, and extends the maintenance cycle to 6 months. The residual rate, as tested by a third party, is 0.5%, significantly better than the industry standard.
[0050] The working principle of this utility model is as follows:
[0051] Various raw materials are quantitatively added into the box 2 through the spiral feed pipe 11, one pipe for one use. Then the geared motor 7 is started, and the stirring blade 9 stirs and mixes the internal liquid. Finally, the manual valve 5 is opened, and the finished product is output through the discharge pipe 4.
[0052] Compared with the prior art, the present invention has the following advantages:
[0053] This mobile production box, through the coordinated arrangement of box body 2, discharge pipe 4, manual valve 5, bridge frame 6, geared motor 7, main shaft 8, stirring blade 9, interface 10, and spiral feed pipe 11, features a sloping bottom surface on box body 2 and a horizontal discharge pipe 4 installed at the lowest point on the side of box body 2. This facilitates the complete drainage of the mixed liquid product inside box body 2, minimizing residue. The addition pipeline has been improved by designing a spiral feed pipe 11, which creates a stable spiral flow field within the pipe, reducing the friction coefficient and solving the clogging problem during raw material addition.
Claims
1. A mobile production box, characterized in that, It includes support legs, a housing, and casters. The top of the support leg is connected to the housing, and the bottom of the support leg is equipped with casters. The bottom surface of the box is sloping, and a discharge pipe is installed at the lowest point of the side of the box. A manual valve is installed on the discharge pipe. A bridge is fixedly connected to the top of the box. A geared motor is installed in the middle of the top surface of the bridge. A main shaft is fixedly connected to the output end of the geared motor. Multiple sets of stirring blades are fixedly connected to the outer surface of the main shaft. The top surface of the housing is fixedly connected to several interfaces, and the top of each interface is fixedly connected to a spiral feed pipe. The main shaft is movably connected to the top surface of the housing.
2. A mobile production box as described in claim 1, characterized in that: The top of the support leg is welded to the surface of the box, and the discharge pipe is installed horizontally.
3. A mobile production box as described in claim 2, characterized in that: The cable tray is welded to the housing, and the geared motor is installed vertically.
4. A mobile production box as described in claim 3, characterized in that: The main shaft is riveted to the root of the stirring blades, and multiple sets of the stirring blades are linearly arrayed on the main shaft.
5. A mobile production box as described in claim 4, characterized in that: The bottom opening of the interface leads into the housing, and the inclination angle of the spiral feed tube is 55-60 degrees.
6. A mobile production box as described in claim 5, characterized in that: The spiral feed tube is made of stainless steel.