Cement concrete winter construction heating device
By using heating insulation device and electric heating wire in cement concrete heating device, combined with infusion pipe and electric stirrer, the problems of uneven heating and low efficiency are solved, stable and uniform heating effect is achieved, and construction efficiency and quality are improved.
Patent Information
- Application Number
- CN202422540083.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The existing cement concrete heating devices have problems of uneven heating effects and low heating efficiency, especially in winter construction.
The heating and insulation device is adopted, including the insulation sleeve and electric heating wire. Using the heat conduction performance and convection phenomenon of water, heat is uniformly transferred to the substance to be heated through the infusion tube, and combined with the stirring action of the electric stirrer to ensure uniform heating of the concrete.
The uniform heating of concrete is achieved, the heating efficiency is improved, the cost of use is reduced, and the stability and quality of the construction process are ensured.
Smart Images
Figure CN223211635U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete processing equipment, in particular to a cement concrete heating device for winter construction. Background Art
[0002] Cement concrete refers to an engineering composite material composed of cement, sand, stone, and other materials mixed with water. It is a widely used adhesive in construction. Because cement concrete contains a high amount of water, it is susceptible to freezing at low or extreme temperatures, causing the concrete to solidify and frost heave, seriously impacting the concrete's construction performance. Therefore, during winter construction, cement concrete treatment is necessary to prevent premature dehydration, solidification, and freezing, maintain temperature stability, improve construction efficiency and quality, and ensure that the concrete hardens properly and reaches the desired strength.
[0003] During construction, traditional methods for addressing concrete coagulation and frost heave primarily include selecting appropriate antifreeze raw materials, controlling the water-cement ratio and slump, heating raw materials, using admixtures, and temperature control. Temperature control is considered the most practical and cost-effective method for addressing concrete coagulation and frost heave. This involves using a heating tank to heat the cement concrete to a temperature higher than the outdoor temperature, preventing coagulation and frost heave during construction and ensuring smooth construction. Traditional mixing reactors heat concrete using a spiral arrangement of heating wires. However, the heating effect of this method is significantly affected by the spacing of the heating wires. Gaps inevitably exist between adjacent coils of heating wire, which reduces the heating effect of the heating wires in the gaps, making it difficult to ensure uniform heating of the mixing reactor. Furthermore, existing reactors still incorporate cold water during the mixing process, which significantly reduces the heating efficiency of the cement concrete.
[0004] Therefore, there is an urgent need in the market to design a cement concrete winter construction heating device that can achieve uniform heating and hot water supply for mixing concrete, so as to solve the problems existing in the above-mentioned prior art. Utility Model Content
[0005] In view of this, the main purpose of the present invention is to provide a cement concrete heating device for winter construction, so as to solve the problems of uneven heating effect and low heating efficiency of cement concrete in existing reactors.
[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:
[0007] A cement concrete heating device for winter construction, comprising:
[0008] Concrete mixer, including a cylinder;
[0009] The heating and heat preservation device is mounted on the outer surface of the concrete mixer and includes:
[0010] The heat-insulating sleeve is fixedly mounted on the outer surface of the cylinder, forming a heat-insulating cavity between the heat-insulating sleeve and the cylinder, and the heat-insulating cavity is filled with a heat-conducting medium;
[0011] The heating wire is arranged in the heat preservation cavity and is connected to the power supply.
[0012] In a preferred embodiment, the heating and heat-insulating device further comprises a liquid infusion tube provided on the inner surface of the heat-insulating sleeve, one end of the liquid infusion tube sequentially passes through the heat-insulating sleeve and the heat-insulating cavity and extends into the concrete mixer.
[0013] In a preferred embodiment, the infusion tube is spirally arranged in the heat preservation cavity.
[0014] In a preferred embodiment, the heating wires and the infusion tube are arranged in an interlaced manner, and the infusion tube is a nickel-chromium alloy component.
[0015] In a preferred embodiment, one end of the liquid infusion tube is connected to a one-way valve disposed in the concrete mixer.
[0016] In a preferred embodiment, the other end of the infusion tube is connected to a first opening and closing valve.
[0017] In a preferred embodiment, a liquid guide tube communicating with the heat preservation cavity is provided at the bottom of the heat preservation sleeve, and one end of the liquid guide tube is connected to a second opening and closing valve.
[0018] In a preferred embodiment, the cross-section of the bottom wall of the heat preservation chamber is sloped, and the lowest point of the bottom wall of the heat preservation chamber is connected to the liquid guide tube.
[0019] In a preferred embodiment, the top end of the cylinder is connected to a feed pipe, and the bottom end is connected to a discharge pipe, and solenoid valves are provided in both the feed pipe and the discharge pipe.
[0020] In a preferred embodiment, an electric stirrer is further provided at the top of the cylinder, and the bottom of the electric stirrer penetrates into the cylinder.
[0021] Compared with the existing technology, the utility model provides a cement concrete heating device for winter construction, which has the following beneficial effects:
[0022] 1. Through the setting of the heating and heat preservation device, the heat conductivity and convection phenomenon of water are utilized to evenly transfer heat to the material to be heated. At the same time, the principle of large heat capacity and stable boiling point of water is utilized to enable the entire heating process to provide a stable heating environment for the cylinder, effectively solving the problem of uneven heating in the existing cement concrete heating device during winter construction.
[0023] 2. By placing the infusion tube inside the insulation chamber, the hot water inside the insulation chamber heats the water passing through the infusion tube during the process of water passing through the infusion tube, which can increase the temperature of the water entering the cylinder and increase the mixing rate of the concrete raw materials and water. There is no need for staff to add external hot water equipment, which can also reduce the overall use cost of the device and effectively ensure the heating efficiency of cement concrete; it solves the problems of uneven heating effect and low heating efficiency of cement concrete in existing reactors. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.
[0025] Figure 1 This is a schematic diagram of the structure of the utility model cement concrete heating device for winter construction;
[0026] Figure 2 This is a structural diagram of a concrete mixer according to the present invention;
[0027] Figure 3 This is a cross-sectional view of a concrete mixer according to the present invention;
[0028] Figure 4 This is a schematic structural diagram of the heating and heat preservation device of the present invention;
[0029] Figure 5 This is a schematic cross-sectional view of the heating and heat preservation device of the present invention;
[0030] Figure 6 This is a schematic diagram of the distribution of the infusion tube of the utility model;
[0031] Figure 7 This is a schematic diagram of the distribution of the heating wires of the present invention.
[0032]
Main component symbol description
[0033] 1. Concrete mixer; 11. Cylinder; 12. Feed pipe; 13. Discharge pipe; 14. Electric mixer;
[0034] 2. Heating and heat preservation device; 21. Heat preservation sleeve; 22. Heating wire; 23. Infusion tube; 24. One-way valve; 25. First opening and closing valve; 26. Liquid guide tube; 27. Second opening and closing valve;
[0035] 3. Base. DETAILED DESCRIPTION
[0036] The structure of the cement concrete heating device for winter construction will be further described in detail below with reference to the accompanying drawings and embodiments of the present utility model.
[0037] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0038] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0041] As the instruction manual Figure 1-Figure 7 As shown, the utility model provides a technical solution:
[0042] A heating device for cement concrete construction in winter, comprising a concrete mixer 1, a heating and heat-insulating device 2, and a base 3; wherein:
[0043] The concrete mixer 1 includes a cylinder 11, with a feed pipe 12 and a discharge pipe 13 fixedly connected at the top and bottom ends of the cylinder 11 and connected to each other. The feed pipe 12 and the discharge pipe 13 are embedded in the surface and connected to a solenoid valve. An electric stirrer 14 is also fixedly connected to the top of the cylinder 11, and the bottom of the electric stirrer 14 extends into the interior of the cylinder to stir the concrete stored in the cylinder 11.
[0044] The heat preservation device 2 is installed on the outer surface of the cylinder 11 and is used to keep the cylinder 11 warm during use to prevent the concrete from solidifying at lower temperatures in winter.
[0045] The base 3 is installed on the lower side of the cylinder 11 and is used to support the concrete mixer 1 and the heating and heat preservation device 2 .
[0046] It should be noted that in this embodiment, the above-described arrangement of the concrete mixer 1, the heating and heat-insulating device 2, and the base 3 forms a construction device capable of mixing and heat-insulating concrete in winter, thereby preventing the concrete from solidifying due to the low ambient temperature during winter construction. During actual use, a worker can add concrete raw materials and water into the cylinder 11 through the feed pipe 12 in corresponding proportions, and then manually start the electric mixer 14. The electric mixer 14 mixes the concrete raw materials and water together to form the corresponding concrete. The worker can then open the solenoid valve on the discharge pipe 13. Under the stirring action of the electric mixer 14, the concrete inside the cylinder 11 is stirred and discharged through the discharge pipe 12 to proceed with construction.
[0047] As a preferred embodiment, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 7 As shown, the heating and heat preservation device 2 includes a heat preservation sleeve 21 and a heating wire 22; wherein:
[0048] The insulation sleeve 21 is fixedly mounted on the surface of the cylinder 11, forming an insulation cavity between the insulation sleeve 21 and the cylinder 11. The insulation cavity is filled with a heat-conducting medium, preferably water. The insulation cavity is connected to a liquid guide tube 26, and a second opening and closing valve 27 is provided on the liquid guide tube 26.
[0049] The heating wire 22 is wound around the insulation sleeve 21 in the insulation cavity and connected to a power source.
[0050] It should be noted that in this embodiment, the arrangement of the insulation sleeve 21 and the heating wire 22 can form a structure for stably heating the cylinder 11, and the heating wire 22 can heat the water in the insulation chamber, and the insulation sleeve 21 can insulate the intermediate insulation layer. In specific use: when workers need to heat and mix concrete in winter, they first connect the external water pump to the second on-off valve 27 in the open state, and then start the external water pump to sequentially pump water into the insulation chamber through the second on-off valve 27 and the liquid guide tube 26 until the insulation chamber is full of water. Then, the worker controls the heating wire 22 to heat the water in the insulation chamber 211. The heat generated by the heating wire 22 uses water as a heat transfer medium, and the heat is evenly transferred to the heated material through the water's thermal conductivity and convection. At the same time, water has a large heat capacity and a stable boiling point, which ensures a stable heating environment throughout the heating process. At the same time, combined with the stirring effect of the electric stirrer 14, this effectively solves the problem of uneven heating in existing cement concrete heating devices during winter construction.
[0051] The cross-section of the inner bottom wall of the insulation chamber is sloped, which facilitates the complete removal of water from the insulation chamber after use, so as to avoid the water freezing and bursting the insulation sleeve 21 and the cylinder 11 due to the low external temperature when not in use.
[0052] As a preferred embodiment, Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the heating and heat-insulating device 2 further includes a liquid infusion tube 23 fixedly connected to the inner surface of the heat-insulating sleeve 21. One end of the liquid infusion tube 23 sequentially passes through the heat-insulating sleeve 21 and the heat-insulating cavity and extends into the interior of the concrete mixer 1. The liquid infusion tube 23 is arranged in a spiral shape inside the heat-insulating cavity 211. The heating wire 22 and the liquid infusion tube 23 are arranged in an interlaced manner. The liquid infusion tube 23 is made of a nickel-chromium alloy material with good thermal conductivity. One end of the liquid infusion tube 23 is fixedly connected to and communicates with a one-way valve 24 provided inside the concrete mixer 1. The blocking direction of the one-way valve 24 is the same as that from the concrete mixer 1 to the heat-insulating sleeve 21. The other end of the liquid infusion tube 23 is fixedly connected to and communicates with a first on-off valve 25.
[0053] It should be noted that, in this embodiment, the provision of the above-mentioned infusion pipe 23 and the one-way valve 24 facilitates heating of water during the process of adding the water required for stirring to the cylinder 11. In specific use: when hot water is needed to stir cement concrete, the staff first waits for the electric heating wire 22 to heat the water inside the heat preservation chamber 211 to a suitable temperature, and then the staff connects the external water pump to the first on-off valve 25 in the open state, and then controls the water pump to deliver water into the infusion pipe 23 through the first on-off valve 25. During the process of delivering water, the hot water inside the heat preservation chamber 211 heats the water passing through the infusion pipe 23, which can increase the temperature of the water entering the cylinder and increase the mixing rate of the concrete raw materials and water.
[0054] When the cement concrete winter construction heating device of the present invention is used: first, water is filled in the insulation chamber, and then the electric heating wire 22 is controlled to heat the water in the insulation chamber 211. The heat generated by the electric heating wire 22 is used, and water is used as a heat conduction medium. Through the heat conduction performance and convection phenomenon of water, the heat is evenly transferred to the heated material. At the same time, the water has a large heat capacity and a stable boiling point, so that the entire heating process can provide a stable heating environment, effectively solving the problem of uneven heating in the existing cement concrete winter construction heating device.
[0055] During the process of stirring and mixing concrete, the staff can add concrete raw materials and water into the cylinder 11 through the feed pipe 12 in corresponding proportions, and then manually start the electric stirrer 14. The electric stirrer 14 stirs and mixes the concrete raw materials and water together to make corresponding concrete. Then the staff can open the solenoid valve on the discharge pipe 13. Under the stirring action of the electric stirrer 14, the concrete inside the cylinder 11 is stirred and discharged through the discharge pipe 12.
[0056] It should be noted that the electric agitator, solenoid valve, water pump, heating wire 22 and one-way valve 24 in the above description are all relatively mature devices in existing technology applications. The specific models can be selected according to actual needs. At the same time, the electric agitator, solenoid valve, water pump and heating wire 22 can be powered by a built-in power supply or by AC power. The specific power supply method is selected according to the situation and will not be elaborated here.
[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.
Claims
1. A cement concrete heating device for winter construction, characterized by: include: A concrete mixer (1) comprising a cylinder (11); The heating and heat-insulating device (2) is sleeved on the outer surface of the concrete mixer (1) and comprises: A heat-insulating sleeve (21) is fixedly mounted on the outer surface of the cylinder (11), forming a heat-insulating cavity between the heat-insulating sleeve (21) and the cylinder (11), and the heat-insulating cavity is filled with a heat-conducting medium; A heating wire (22) is disposed in the heat preservation chamber and connected to a power source; The heating and heat-insulating device (2) further comprises a liquid infusion tube (23) arranged on the inner surface of the heat-insulating sleeve (21), one end of the liquid infusion tube (23) sequentially passing through the heat-insulating sleeve (21) and the heat-insulating cavity, and extending into the concrete mixer (1); The infusion tube (23) is spirally arranged in the heat preservation cavity; The heating wire (22) and the infusion tube (23) are arranged in an interlaced manner, and the infusion tube (23) is a nickel-chromium alloy material component; One end of the liquid delivery pipe (23) is connected to a one-way valve (24) provided in the concrete mixer (1); The other end of the liquid delivery tube (23) is connected to a first opening and closing valve (25).
2. A cement concrete heating device for winter construction according to claim 1, characterized in that: A liquid guide tube (26) communicating with the heat preservation chamber is provided at the bottom of the heat preservation sleeve (21), and one end of the liquid guide tube (26) is connected to a second opening and closing valve (27).
3. A cement concrete heating device for winter construction according to claim 2, characterized in that: The cross-sectional shape of the bottom wall of the heat preservation chamber is sloped, and the lowest point of the bottom wall of the heat preservation chamber is connected to the liquid guide tube (26).
4. A cement concrete heating device for winter construction according to claim 1, characterized in that: The top end of the cylinder (11) is connected to a feed pipe (12), and the bottom end is connected to a discharge pipe (13), and electromagnetic valves are provided in both the feed pipe (12) and the discharge pipe (13).
5. The cement concrete heating device for winter construction according to claim 1, characterized in that: An electric stirrer (14) is also provided at the top of the cylinder (11), and the bottom of the electric stirrer (14) penetrates into the cylinder (11).