Novel non-magnetic concrete pumping complete device
By setting an insulating coating at key parts of the concrete pumping complete set of devices, the problem of iron chips falling off and doping into concrete on the inner wall of the equipment is solved, and the magnetic index of non-magnetic concrete is achieved and the product quality is improved.
Patent Information
- Application Number
- CN202420901805.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-04-28
AI Technical Summary
During the mixing and transportation of existing concrete pumping equipment, iron chips on the inner wall of the equipment fall off and dopant into the concrete, resulting in the magnetic properties of non-magnetic concrete not meeting the standards.
A new magnetic-free concrete pumping complete set is designed, and by providing an insulating coating on the inner surfaces of the pump pipe, concrete tank and discharge rack, the direct contact between the concrete and the inner wall of the equipment is prevented.
It effectively avoids the fall off and doping of iron filings into concrete, solves the problem of magnetic concrete not meeting the magnetic index due to doping impurities, and improves the product quality and pass rate of concrete.
Smart Images
Figure CN223030052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete construction in building engineering, in particular to a novel non-magnetic concrete pumping complete set of devices. Background Technique
[0002] In the fields of astronomical observation, precision measurement, geological exploration, and the development of national defense science and industry, in order to ensure the precision of instruments and the stable operation of high-precision and sophisticated technologies, it is often necessary to create a relatively airtight non-magnetic environment. This non-magnetic environment is directly related to the magnetism in the concrete structure, and the magnetism of concrete is affected by raw materials, construction equipment, and construction technology. First, the magnetism of concrete can be controlled by screening raw materials to meet the qualified indicators of non-magnetic concrete. Secondly, in the construction equipment and technology of concrete, a non-magnetic construction environment is required to isolate the direct contact between concrete and magnetic substances, so as to avoid the doping of impurities in non-magnetic concrete and affect the magnetism of concrete.
[0003] The existing concrete pumping complete set of devices includes a mixing device and a feeding device. The mixing device is mainly a concrete mixing truck, and the feeding device includes a concrete transport pump pipe. When directly using the existing equipment to mix and transport concrete, the iron filings falling off from the inner wall are doped into the concrete, which will have a great impact on the magnetism of the concrete, resulting in the non-compliance of the magnetism of non-magnetic concrete. For this reason, we propose a novel non-magnetic concrete pumping complete set of devices. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide a novel non-magnetic concrete pumping complete set of devices, avoid the iron filings falling off from the inner wall of the equipment during the mixing process and transportation process of concrete and being doped into non-magnetic concrete, thereby solving the problem that the magnetic index of magnetic concrete does not meet the standard due to doping impurities during the mixing process, improving the product quality of concrete, and effectively solving the problems in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A novel non-magnetic concrete pumping complete set of devices, including a pump pipe for transporting concrete, a vehicle body, and a concrete tank body and a discharge rack installed on the vehicle body. The inner surface of the pump pipe is provided with a pump pipe non-magnetic coating, the inner surface of the concrete tank body is provided with stirring blades, and the inner surface of the concrete tank body and the inner surface of the stirring blades are provided with a tank body non-magnetic coating, and the inner surface of the discharge rack is provided with a discharge rack non-magnetic coating.
[0006] As a preferred technical scheme of the utility model, the tank body non-magnetic coating and the discharge rack non-magnetic coating are both NiCrBSi alloy material coatings.
[0007] As a preferred technical solution of the present utility model, the pump pipe non-magnetic coating is made of nickel-based self-fluxing alloy material.
[0008] As a preferred technical solution of the present utility model, a tank mouth protective sleeve is sleeved at the outlet of the concrete tank body, and the tank mouth protective sleeve is sleeved on both the inner and outer sides of the outlet of the concrete tank body.
[0009] As a preferred technical solution of the present utility model, a plurality of screw holes are provided on the outer surface of the tank mouth protective sleeve and the outer surface of the concrete tank body, and fixing bolts are threadedly connected in the screw holes.
[0010] As a preferred technical solution of the present utility model, a tank mouth protective sleeve transition surface is provided on the inner side of the tank mouth protective sleeve away from the outlet of the concrete tank body.
[0011] As a preferred technical solution of the present utility model, discharge rack protective sleeves are provided on both the upper part and the outlet of the outer side of the discharge rack, and the discharge rack protective sleeves are sleeved on both the inner and outer sides of the discharge rack.
[0012] As a preferred technical solution of the present utility model, a discharge rack protective sleeve transition surface is provided on the inner side of the discharge rack protective sleeve away from the discharge rack outlet.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The concrete is separated from the inner wall of the concrete tank body and the main body of the stirring blade through the tank body non-magnetic coating, preventing the direct contact between the concrete and the inner wall of the concrete tank body and the stirring blade. The coating is dense and has high bonding strength, avoiding the iron filings on the inner wall falling off and being doped into the non-magnetic concrete during the mixing process, thus solving the problem that the magnetic index of the magnetic concrete does not meet the standard due to doping impurities during the mixing process and improving the product quality of the concrete; By setting a discharge rack non-magnetic coating on the inner side of the discharge rack and a pump pipe non-magnetic coating on the inner wall of the pump pipe, the inner wall of the discharge rack and the inner wall of the pump pipe are separated from the concrete, avoiding the close contact between the concrete and the inner wall of the discharge rack and the pump pipe. The coating has good wear resistance and corrosion resistance, avoiding the iron filings on the inner wall falling off and being doped into the non-magnetic concrete during the conveying process, thus solving the problem that the magnetic index of the concrete does not meet the standard due to doping impurities during the conveying process and improving the qualified rate of the concrete.
[0014] In summary of the above technical solutions, through multiple non-magnetic protective coatings, the direct contact between the concrete and the inner wall surface of the equipment is avoided, preventing the magnetic index of the concrete from not meeting the standard due to doping impurities and ensuring the qualified rate of the concrete. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present utility model;
[0016] Figure 2Schematic structural diagram of the concrete tank body of the present utility model;
[0017] Figure 3 Schematic side structural diagram of the concrete tank body of the present utility model;
[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at position A;
[0019] Figure 5 Schematic structural diagram of the discharge rack of the present utility model;
[0020] Figure 6 Schematic side sectional view of the discharge rack of the present utility model;
[0021] Figure 7 Schematic side sectional view of the pump pipe of the present utility model.
[0022] In the figure: 1 vehicle body, 2 concrete tank body, 21 tank body non-magnetic coating, 22 tank mouth protective sleeve, 23 tank mouth protective sleeve transition surface, 24 fixing bolt, 3 discharge rack, 31 discharge rack non-magnetic coating, 32 discharge rack protective sleeve, 33 discharge rack protective sleeve transition surface, 4 stirring blade, 5 pump pipe, 51 pump pipe non-magnetic coating, 52 pump pipe mouth protective sleeve. Specific embodiments
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figure 1-7 , the present utility model provides a technical solution: a new type of non-magnetic concrete pumping complete set of devices, including a pump pipe 5 for transporting concrete, a vehicle body 1, a concrete tank body 2 and a discharge rack 3 installed on the vehicle body 1. A stirring blade 4 is installed in the concrete tank body 2. A tank body non-magnetic coating 21 is provided on the inner side surface of the concrete tank body 2 and the inner side surface of the stirring blade 4. The concrete is separated from the inner wall of the concrete tank body 2 and the body of the stirring blade 4 through the tank body non-magnetic coating 21, preventing the direct contact between the concrete and the inner wall of the concrete tank body 2 and the stirring blade 4. This coating is dense and has a high bonding strength, avoiding the iron filings on the inner wall from falling off and mixing into the non-magnetic concrete during the mixing process, thus solving the problem that the magnetic index of the magnetic concrete does not meet the standard due to the mixing of impurities during the mixing process and improving the product quality of the concrete.
[0025] The inner surface of the pump pipe 5 is provided with a pump pipe magnetic insulation coating 51, and the inner surface of the discharge rack 3 is provided with a discharge rack magnetic insulation coating 31. By providing the discharge rack magnetic insulation coating 31 on the inner side of the discharge rack 3 and the pump pipe magnetic insulation coating 51 on the inner wall of the pump pipe 5, the inner walls of the discharge rack 3 and the pump pipe are separated from the concrete, avoiding the close contact between the concrete and the inner walls of the discharge rack 3 and the pump pipe. This coating has good wear resistance and corrosion resistance, preventing iron filings from falling off the inner wall during transportation and mixing into the non-magnetic concrete, thus solving the problem that the magnetic index of the concrete does not meet the standard due to impurity mixing during transportation and improving the qualification rate of the concrete.
[0026] In a preferred technical solution, both the tank body magnetic insulation coating 21 and the discharge rack magnetic insulation coating 31 are NiCrBSi alloy material coatings applied by plasma spraying. Using a DC-driven plasma arc as the heat source, the NiCrBSi alloy material powder is heated to a molten or semi-molten state and sprayed at high speed onto the surface of the pre-treated cement tank body to form a firmly adhered surface layer. The thickness of the tank body magnetic insulation coating 21 and the discharge rack magnetic insulation coating 31 is 0.01 - 0.5 mm. The process parameters of plasma spraying are as follows: spraying distance 95 - 125 mm, spraying current 440 - 500 A, spraying voltage 70 - 75 V, and the plasma gas is argon, hydrogen, and nitrogen, with gas flow rates of 30 - 35 L / min, 1 - 4 L / min, and 1 - 3 L / min respectively.
[0027] The NiCrBSi alloy material has excellent wear resistance, corrosion resistance, and oxidation resistance, which can effectively extend the service life of the tank body and prevent iron filings from falling off the inner wall of the tank and mixing into the non-magnetic concrete.
[0028] In a preferred technical solution, the pump pipe magnetic insulation coating 51 is a nickel-based self-fluxing alloy material, and carbide particles TiC are used to strengthen the nickel-based alloy body. It is set on the inner wall of the pump pipe through the process of laser cladding. The laser power is set at 2000 - 2200 W, the scanning speed is 225 - 240 mm / s, the overlapping rate is 80 - 90%, and the thickness of the pump pipe magnetic insulation coating 51 is 0.2 - 2.0 mm.
[0029] The pump pipe magnetic insulation coating 51 has good wettability, and the sprayed and melted layer surface is smooth and shiny, suitable for transporting concrete. At the same time, it also has excellent corrosion resistance and wear resistance, which can extend the overall service life of the device.
[0030] Optional technical solution: A tank mouth protective sleeve 22 is sleeved at the outlet of the concrete tank body 2. The tank mouth protective sleeve 22 is sleeved on both the inner and outer sides of the outlet of the concrete tank body 2. On both the upper part and the outlet of the outer side of the discharging rack 3, discharging rack protective sleeves 32 are provided. The discharging rack protective sleeves 32 are sleeved on both the inner and outer sides of the discharging rack 3. On both the inner and outer sides of the outlet of the pump pipe 5, pump pipe mouth protective sleeves 52 are also sleeved. The tank mouth protective sleeve 22, the discharging rack protective sleeves 32 and the pump pipe mouth protective sleeves 52 are all used to prevent impurities on the outer wall of the equipment from being mixed into the non-magnetic concrete during the feeding and discharging process, and to isolate iron filings on the outer wall from falling into the non-magnetic concrete, further improving the quality of the concrete. The tank mouth protective sleeve 22, the discharging rack protective sleeves 32 and the pump pipe mouth protective sleeves 52 are all made of materials such as ceramics or polytetrafluoroethylene, with good wear resistance and no metal, and can be applied to the mixing and transportation of non-magnetic concrete.
[0031] Further optionally, a tank mouth protective sleeve transition surface 23 is provided on the inner side of the tank mouth protective sleeve 22 away from the outlet of the concrete tank body 2. A discharging rack protective sleeve transition surface 33 is provided on the inner side of the discharging rack protective sleeve 32 away from the outlet of the discharging rack 3. At the position on the inner side of the pump pipe mouth protective sleeve 52 away from the pump pipe discharging port, a corresponding pump pipe mouth protective sleeve transition surface is also provided. The transition surfaces are all inclined towards the direction away from the outlet and the inner wall direction, forming a transition surface with the inner wall to prevent the concrete from being stuck at the position of the protective sleeve during the discharging process.
[0032] Optionally, a number of screw holes are provided on the outer surface of the tank mouth protective sleeve 22 and the outer surface of the concrete tank body 2. Fixing bolts 24 are threadedly connected in the screw holes to fix the tank mouth protective sleeve 22. The discharging rack protective sleeves 32 and the pump pipe mouth protective sleeves 52 can be fixed by a clamping method or by fixing bolts.
[0033] The parts not disclosed in the present utility model are all prior arts, and their specific structures, materials and working principles will not be elaborated in detail. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A novel non-magnetic concrete pumping device, comprising a pump pipe (5) for conveying concrete, a vehicle body (1), and a concrete tank (2) and a discharge rack (3) mounted on the vehicle body (1), characterized in that: The inner surface of the pump pipe (5) is provided with a pump pipe magnetic insulation coating (51), a mixing blade (4) is installed in the concrete tank body (2), the inner surface of the concrete tank body (2) and the inner surface of the mixing blade (4) are provided with a tank body magnetic insulation coating (21), and the inner surface of the discharge rack (3) is provided with a discharge rack magnetic insulation coating (31).
2. A novel non-magnetic concrete pumping device according to claim 1, characterized in that: The tank body magnetic insulation coating (21) and the discharge rack magnetic insulation coating (31) are both NiCrBSi alloy material coatings.
3. A novel non-magnetic concrete pumping device according to claim 1 or 2, characterized in that: The thickness of the tank body magnetic insulation coating (21) and the discharge rack magnetic insulation coating (31) is 0.01-0.5 mm.
4. The novel non-magnetic concrete pumping device according to claim 1 is characterized in that: The pump tube magnetic insulation coating (51) is made of a nickel-based self-fluxing alloy material.
5. A novel non-magnetic concrete pumping device according to claim 1 or 4, characterized in that: The thickness of the magnetic insulation coating (51) of the pump tube is 0.2-2.0 mm.
6. The novel non-magnetic concrete pumping device according to claim 1 is characterized in that: The outlet of the concrete tank body (2) is sleeved with a tank mouth protection sleeve (22), and the tank mouth protection sleeve (22) is sleeved on both inner and outer sides of the outlet of the concrete tank body (2).
7. The novel non-magnetic concrete pumping device according to claim 6 is characterized in that: The outer surface of the tank mouth protective sleeve (22) and the outer surface of the concrete tank body (2) are both provided with a plurality of screw holes, and fixing bolts (24) are threadedly connected in the screw holes.
8. The novel non-magnetic concrete pumping device according to claim 6 is characterized in that: A tank mouth protective sleeve transition surface (23) is provided on the inner side of the tank mouth protective sleeve (22) away from the outlet of the concrete tank body (2).
9. The novel non-magnetic concrete pumping device according to claim 1 is characterized in that: A discharging rack protective sleeve (32) is provided on the upper outer portion and the outlet of the discharging rack (3), and the discharging rack protective sleeve (32) is sleeved on both inner and outer sides of the discharging rack (3).
10. The novel non-magnetic concrete pumping device according to claim 9 is characterized in that: A discharging rack protective sleeve transition surface (33) is provided on the inner side of the discharging rack protective sleeve (32) away from the outlet of the discharging rack (3).