Horizontal concrete mixer with temperature adjusting function and method for adjusting concrete discharging temperature

Abstract

The invention discloses a horizontal concrete mixer with a temperature adjusting function and a method for adjusting the concrete discharging temperature, and belongs to the technical field of concrete preparation. The stirrer body comprises a machine base, a machine shell, a stirring shaft, a stirring assembly, a first bearing seat, a second bearing seat, a driving device, a water outlet assembly, a water inlet assembly, a water inlet pipe and a water outlet pipe; an axial heat exchange cavity is formed in the center of the stirring shaft, one end of the stirring shaft extends out of the machine shell, penetrates through the first bearing seat and the water outlet assembly and is connected with the driving device, and the other end of the stirring shaft extends out of the machine shell, penetrates through the second bearing seat and is connected with the water inlet assembly. The water outlet pipe communicates with the other end of the axial heat exchange cavity through a water outlet assembly. The plurality of stirring components are axially fixed on the stirring shaft at intervals, and the roots of the stirring components are tightly attached to the stirring shaft. By using the mixer disclosed by the invention, the temperature of discharged concrete can be controlled within a required range, the temperature uniformity of the discharged concrete is improved, and the energy consumption of preheating / precooling is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of concrete preparation, and in particular to a horizontal concrete mixer with a temperature regulating function and a method for regulating the temperature of concrete out of the mixer. Background Art

[0002] If the temperature of the concrete mixture entering the mold is too high, the fluidity of the concrete will deteriorate, the setting time will be shortened, and problems such as bleeding and segregation will occur; if the temperature of the concrete mixture entering the mold is too low, the initial strength development will be slow and the poured concrete will be easily frozen. Therefore, in order to ensure the pouring quality, the concrete outlet temperature needs to be controlled within a certain range. For example, the "Concrete Quality Control Standard" GB 50164-2011 stipulates that when the weather is hot in summer, the temperature of the concrete mixture entering the mold should not be higher than 35°C; when construction is carried out in winter, the temperature of the concrete mixture entering the mold should not be lower than 5°C.

[0003] The existing methods for controlling the temperature of concrete out of the machine are: in high temperature environment, adopting aggregate pre-cooling (spraying cold water or air cooling), mixing water cooling (using ice water or ice cubes to replace part of the mixing water), shortening the mixing time, spraying cooling water on the outside of the mixer cylinder and other cooling measures; in low temperature environment, adopting heating mixing water, steam or electric heating aggregate, extending the mixing time, adding insulation layers to the mixer, conveying pipeline and silo and other heating measures. The disadvantages of the existing technology are: high energy consumption for pre-cooling / preheating, spray cooling requires a large amount of fresh water, shortening the mixing time may lead to uneven mixing and affect the strength of concrete, and it is difficult to ensure temperature uniformity, resulting in excessive local temperature of concrete.

[0004] Chinese patent CN221160988U discloses a concrete mixer with automatic temperature control, including a frame and a mixing tank arranged on the frame, and the mixing tank is provided with a temperature sensing component, a heating component and a cooling component. The heating component and the cooling component respectively heat and cool the mixing tank. The patent arranges a heating pipe and a cooling pipe in a spiral shape inside the mixing tank, which can realize the function of the heating pipe and the cooling pipe to adjust the temperature inside the mixing tank, but this method has low heat exchange efficiency, high energy consumption, poor uniformity of the temperature of the concrete out of the machine, and the heat exchange element arranged in the mixing tank is easy to be damaged and affects the mixing effect. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a horizontal concrete mixer with a temperature adjustment function and a method for adjusting the temperature of concrete out of the mixer.

[0006] The technical solution adopted by the present invention is:

[0007] A horizontal concrete mixer with a temperature regulating function comprises a mixer body, wherein the mixer body comprises a machine base, a machine casing, a stirring shaft, a stirring assembly, a first bearing seat, a second bearing seat, a driving device, a water outlet assembly, a water inlet assembly, a water inlet pipe and a water outlet pipe; an axial heat exchange chamber is arranged at the center of the stirring shaft, one end of the stirring shaft extends from the machine casing, passes through the first bearing seat and the water outlet assembly to be connected to the driving device, and is driven to rotate by the driving device, the other end of the stirring shaft extends from the machine casing, passes through the second bearing seat to be connected to the water inlet assembly, the water inlet pipe is communicated with one end of the axial heat exchange chamber through the water inlet assembly, and the water outlet pipe is communicated with the other end of the axial heat exchange chamber through the water outlet assembly; a plurality of stirring assemblies are axially fixed on the stirring shaft at intervals, and their roots are tightly fitted to the stirring shaft.

[0008] Furthermore, the water outlet pipe is connected to the water tank through a first pipe, the water tank is connected to the refrigerator and the heater respectively through a water pump, and the refrigerator and the heater are connected to the water inlet pipe through a second pipe.

[0009] Furthermore, a first temperature gauge and a second temperature gauge are respectively provided on the first pipeline and the second pipeline.

[0010] Furthermore, the stirring assembly includes a stirring seat, a stirring rod and a stirring blade. The stirring seat is made of an arc plate that matches the stirring shaft. The arc plate is attached to and fixed on the outer circumferential surface of the stirring shaft. The stirring rod is fixed on the arc plate. A heat exchange medium flow channel is arranged in the stirring rod. The heat exchange medium flow channel is connected through holes opened on the arc plate and the side wall of the stirring shaft.

[0011] Furthermore, the stirring seat is fixed to the stirring shaft by screws, and a graphite sealing gasket is arranged between the stirring seat and the stirring shaft.

[0012] Furthermore, a circular connecting seat adapted to the stirring rod is provided in the middle portion of the stirring blade, and the circular connecting seat is provided with a notch. The stirring blade is tightly mounted on the stirring rod through its circular connecting seat and is locked by a bolt passing through the notch.

[0013] Furthermore, the stirring assembly includes a stirring blade, and the root of the stirring blade is welded to the outer side wall of the stirring shaft.

[0014] Furthermore, the water inlet component is a rotary joint.

[0015] Furthermore, the water outlet assembly includes a rotating seat and a fixed seat, the rotating seat is fixedly mounted on the stirring shaft, a first water outlet hole is provided in the rotating seat, and a second water outlet hole is provided in the stirring shaft; the fixed seat surrounds the outer circumference of the rotating seat and is respectively rotatably sealed with the stirring shaft and the rotating seat, a water storage chamber is provided between the fixed seat and the rotating seat, the water storage chamber is connected with the axial heat exchange chamber through the first water outlet hole and the second water outlet hole, and the water outlet pipe passes through the fixed seat and is connected with the water storage chamber.

[0016] A method for adjusting the temperature of concrete out of a machine, using the above-mentioned horizontal concrete mixer with a temperature adjustment function, comprising:

[0017] (1) During the mixing process, water in the water tank is pumped into the refrigerator by a water pump, cooled in the refrigerator, and then enters the mixing shaft through the second pipe, the water inlet pipe, and the water inlet assembly, flows along the axial heat exchange cavity of the mixing shaft, exchanges heat with the mixing shaft and the mixing assembly, and then flows back to the water tank through the water outlet assembly, the water outlet pipe, and the first pipe, and the cycle continues. In this process, the concrete mixture is mixed, contacted, and heat-exchanged with the mixing shaft and the mixing assembly, and the temperature is reduced.

[0018] (2) During the mixing process, water in the water tank is pumped into the heater through a water pump, and after being heated in the heater, the water enters the mixing shaft through the second pipe, the water inlet pipe, and the water inlet assembly, flows along the axial heat exchange cavity of the mixing shaft, exchanges heat with the mixing shaft and the mixing assembly, and after being heated, flows back to the water tank through the water outlet assembly, the water outlet pipe, and the first pipe, and the cycle continues. In this process, the concrete mixture is mixed, contacted, and heat-exchanged with the mixing shaft and the mixing assembly, and the temperature rises.

[0019] Beneficial effects of the present invention:

[0020] 1. By inputting heat exchange medium into the hollow stirring shaft of the mixer body, and using the stirring shaft and stirring assembly as heat exchange parts, during the stirring process, the concrete mixture is in full contact with the heat exchange parts for heat exchange, with high heat exchange efficiency and good uniformity; by controlling the temperature and flow of the heat exchange medium and appropriately extending the stirring time, the temperature of the concrete out of the machine can be controlled within the required range without precooling / preheating the raw materials, thereby reducing energy consumption. In extreme temperature environments (overcooling or overheating), in order not to excessively extend the stirring time, some precooling / preheating measures can be retained, but the mixer of the present invention can still achieve the effect of partially reducing energy consumption and improving the uniformity of the temperature of the concrete out of the machine.

[0021] 2. By using water tanks, water pumps, circulation pipes, heaters and refrigerators in combination, the heat exchange medium can be recycled and water resources can be saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a structural diagram of a horizontal concrete mixer with a temperature regulating function.

[0023] Figure 2 for Figure 1 A top view of a horizontal concrete mixer is shown.

[0024] Figure 3 This is a structural diagram of the installation of a stirring assembly of the stirring machine body of the present invention.

[0025] Figure 4 for Figure 3The connection structure diagram of the stirring rod and the stirring seat of the stirring assembly is shown.

[0026] Figure 5 This is another installation structure diagram of the stirring assembly of the stirring machine body of the present invention.

[0027] Figure 6 It is a structural diagram of the water outlet assembly of the mixer body of the present invention.

[0028] Figure 7 for Figure 6 The structural diagram of the rotating seat of the water outlet component is shown.

[0029] Figure 8 for Figure 6 The structural diagram of the fixing seat of the water outlet component is shown.

[0030] Fig. 9 The present invention is a structural diagram of another horizontal concrete mixer with a temperature regulating function. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred implementation modes.

[0032] See also Figure 1-8 The present invention provides a horizontal concrete mixer with a temperature adjustment function, including a mixer body 100, the mixer body 100 includes a base 1, a casing 2, a stirring shaft 3, a stirring assembly 4, a first bearing seat 51, a second bearing seat 52, a driving device 6, a water outlet assembly 7, a water inlet assembly 8, a water inlet pipe 9 and a water outlet pipe 10; the casing 2, the first bearing seat 51, the second bearing seat 52, and the driving device 6 are all installed on the base 1, the casing 2 is provided with a stirring shaft 3, the top of the casing is provided with a feed inlet 21, and the bottom is provided with a discharge port 22. One end of the stirring shaft 3 extends from the casing 2, passes through the first bearing seat 51 and the water outlet assembly 7 to connect to the driving device 6, and is driven to rotate by the driving device 6. The other end of the stirring shaft 3 extends from the casing 2, passes through the second bearing seat 52 to connect to the water inlet assembly 8; an axial heat exchange chamber 301 is provided at the center of the stirring shaft 3, the water inlet pipe 9 is connected to one end of the axial heat exchange chamber 301 through the water inlet assembly 8, and the water outlet pipe 10 is connected to the other end of the axial heat exchange chamber 301 through the water outlet assembly 7; a plurality of stirring assemblies 4 are axially fixed on the stirring shaft 3 at intervals, and their roots are tightly fitted to the stirring shaft 3.

[0033] The horizontal concrete mixer with temperature adjustment function provided by the present invention may be a single-shaft mixer or a double-shaft mixer. Figure 2Only a top view of the twin-shaft mixer is shown. If it is a single-shaft mixer, it is only necessary to remove one stirring shaft and the corresponding bearing seat, water outlet assembly 7, water inlet assembly 8, water inlet pipe 9 and water outlet pipe 10, and change the structure of the driving device 6.

[0034] like Figure 2 As shown, the mixer body 100 includes two stirring shafts 3 with the same structure, that is, an axial heat exchange cavity 301 is provided at the center of each stirring shaft 3, one end of the axial heat exchange cavity 301 is open, and the other end is closed. That is, one end of the stirring shaft 3 connected to the driving device is a solid shaft. The two ends of the stirring shaft extend out of the casing and are supported by the first bearing seat 51 and the second bearing seat 52 for rotation. The driving device 6 includes a driving motor 62 and a gear reducer 61. The driving motor 62 connects the two stirring shafts through the gear reducer 61 and drives the two stirring shafts 3 to rotate synchronously. A plurality of stirring components 4 are provided on each stirring shaft. The present invention has no special requirements on the structural form of the stirring component 4. The existing stirring components in the field are all suitable for the present invention. There is no special requirement for the connection form between the stirring component and the stirring shaft except for the fitting connection. The stirring component can be welded to the stirring shaft or detachably connected to the stirring shaft by screws.

[0035] When the stirring assembly is welded to the stirring shaft, Figure 5 As shown, the stirring assembly 4 preferably includes a stirring blade 45, the root of the stirring blade 45 is welded to the outer wall of the stirring shaft 3, and in order to improve the heat conduction efficiency, the root of the stirring blade can be designed to be an arc that matches the stirring shaft, thereby improving the heat exchange effect between the stirring blade and the concrete mixture. In addition, there are no special requirements for the structural form of the stirring blade 45, the blade can be plate-shaped or rod-shaped, the plate surface can be a curved surface or a flat surface, and it can be installed perpendicular to the axis of the stirring shaft or at a certain angle to the axis of the stirring shaft.

[0036] When the stirring assembly is detachably connected to the stirring shaft, Figure 3 and Figure 4 As shown, the stirring assembly 4 includes a stirring seat 41, a stirring rod 42 and a stirring blade 43. The stirring seat 41 is made of an arc plate that matches the stirring shaft 3. The arc plate is attached to and fixed on the outer circumferential surface of the stirring shaft 3. The stirring rod 42 is fixed on the arc plate. A heat exchange medium flow channel is set in the stirring rod 42, and the heat exchange medium flow channel is connected through holes opened on the arc plate and the side wall of the stirring shaft.

[0037] The stirring seat 41 is fixed to the stirring shaft 3 by screws, and a graphite sealing gasket is arranged between the stirring seat 41 and the stirring shaft 3. The setting of the graphite sealing gasket plays a role in preventing the leakage of the heat exchange medium and conducting heat. The middle part of the stirring blade 43 is provided with a circular connecting seat adapted to the stirring rod 42, and the circular connecting seat is provided with a notch. The stirring blade 43 is tightly fitted on the stirring rod 42 through its circular connecting seat and is locked by a bolt 43 passing through the notch; such a design can make more heat or cold in the stirring rod 42 be transferred to the stirring blade 43, thereby improving the temperature control effect.

[0038] The present invention has no special restrictions on the structural form of the water outlet component 7, as long as it can enable the stirring shaft 3 to rotate and pass through and discharge the temperature-adjusted water in the axial heat exchange cavity 301.

[0039] Preferably Figure 6-Figure 8 As shown, the water outlet assembly 7 includes a rotating seat 71 and a fixed seat. The rotating seat 71 is in a circular ring shape with a certain thickness and ring width. The diameter of the inner hole 711 of the circular ring is consistent with the outer diameter of the stirring shaft. At least one water hole 712 is radially opened in the circular ring body. Figure 7 As shown, four water holes 712 are evenly arranged in the radial direction. The water holes 712 can also be called first water outlet holes. The rotating seat 71 is fixedly sleeved on the stirring shaft 3 through its annular inner hole 711, and the stirring shaft 3 is provided with second water outlet holes corresponding to the water holes 712 one by one; the water holes 712 are connected to the axial heat exchange cavity 301 through the second water outlet holes. Preferably, the rotating seat 71 is welded to the stirring shaft 3.

[0040] The fixed seat includes an upper fixed seat 72 and a lower fixed seat 73. The upper fixed seat 72 and the lower fixed seat 73 are respectively provided with a semicircular hole adapted to the outer diameter of the stirring shaft and a semicircular groove adapted to the rotating seat 71. The depth of the semicircular groove is greater than the ring width of the rotating seat 71, and the width of the semicircular groove is slightly greater than the thickness of the rotating seat 71. When the upper fixed seat 72 and the lower fixed seat 73 are connected as one body by bolts 76, the two semicircular holes are matched to form a circular hole 75 slightly larger than the outer diameter of the stirring shaft, and the two semicircular grooves are matched to form a circular ring groove 74. The rotating seat 71 is accommodated in the circular ring groove 74, and an annular water storage chamber 701 is formed between the outer circumference of the rotating seat 71 and the inner circumference of the circular ring groove 74. The lower fixed seat 73 is provided with a bolt hole, and the fixed seat is connected to the machine base 1 by a bolt passing through the bolt hole of the lower fixed seat. The fixed seat is respectively connected to the stirring shaft 3 and the rotating seat 71 through a rotating sealing device, which can prevent the leakage of the temperature-adjusting water. The rotary sealing device is a prior art, and its structure and principle are not described in detail.

[0041] When the fixed seat is connected to the stirring shaft 3 and the rotating seat 71 respectively through a rotating sealing device, it is preferred that a through hole is set on the top of the upper fixed seat 72, and the water outlet pipe 10 passes through the through hole and is welded to the upper fixed seat 72, and the water outlet pipe 10 is connected to the annular water storage chamber 701.

[0042] The present invention has no special restrictions on the structural form of the water inlet component 8, as long as it can realize the input of temperature-adjusted water into the rotating stirring shaft 3. Preferably, the water inlet component 8 is a rotary joint, the stirring shaft 3 is connected to the dynamic ring of the rotary joint, and the water inlet pipe 9 is connected to the static ring of the rotary joint. The rotary joint is a prior art and can be obtained by purchasing on the market.

[0043] When the mixer body 100 is used,

[0044] (1) During the mixing process, cold water enters the mixing shaft through the water inlet pipe 9 and the water inlet assembly 8, flows along the axial heat exchange chamber 301, exchanges heat with the mixing shaft 3 and the mixing assembly 4, and then flows out through the water outlet assembly 7 and the water outlet pipe 10; during this process, the concrete mixture is mixed with the mixing shaft and the mixing assembly for heat exchange, and the temperature is reduced;

[0045] (2) During the stirring process, hot water enters the stirring shaft through the water inlet pipe 9 and the water inlet assembly 8, flows along the axial heat exchange chamber 301, exchanges heat with the stirring shaft 3 and the stirring assembly 4, and then flows out through the water outlet assembly 7 and the water outlet pipe 10; in this process, the concrete mixture is stirred, contacted and heat-exchanged with the stirring shaft and the stirring assembly, and the temperature rises.

[0046] It is understandable that the heat exchange medium may also be steam, heat transfer oil, refrigerant or other specific media.

[0047] See also Fig. 9 The present invention provides another horizontal concrete mixer with a temperature adjustment function, comprising the above-mentioned mixer body 100, a water tank 11, a refrigerator 13 and a heater 14, the water outlet pipe 10 is connected to the water tank 11 through a first pipe 15, and the first pipe 15 is provided with a first thermometer 16 and a flowmeter 19; the water tank 11 is provided with a water supply pipe 111, the bottom of the water tank 11 is connected to the water pump 12 through a pipe, the water pump 12 is connected to the pipe 131 and the pipe 141 through a three-way connection, the pipe 131 is connected to the refrigerator 13 through a first valve 132, and the refrigerator 13 is connected to the second pipe 17 through a pipe and a second valve 133; the pipe 141 is connected to the heater 14 through a third valve 142, and the heater 14 is connected to the second pipe 17 through a pipe and a fourth valve 143; the second pipe 17 is provided with a second thermometer 18; the second pipe 17 is connected to the water inlet pipe 9.

[0048] The refrigerator 13 and the heater 14 are both existing technologies, and the heater 14 is preferably an electric heater for easy on-site installation and use.

[0049] The present invention also provides a method of using Fig. 9 The method for adjusting the temperature of concrete leaving the horizontal concrete mixer is shown.

[0050] (1) Under high temperature environment, close the third valve 142 and the fourth valve 143, and open the first valve 132 and the second valve 133;

[0051] After feeding, the driving motor 62 is started, and the stirring shaft and the stirring assembly stir the concrete mixture. During the stirring process, the water in the water tank 11 is pumped into the refrigerator 13 through the water pump 12, and after cooling in the refrigerator 13, it enters the stirring shaft 3 through the second pipeline, the water inlet pipe 9, and the water inlet assembly 8, flows along the axial heat exchange cavity 301 of the stirring shaft 3, exchanges heat with the stirring shaft 3 and the stirring assembly 4, and then flows back to the water tank 11 through the water outlet assembly 7, the water outlet pipe 10, and the first pipeline, and the cycle is repeated. In this process, the concrete mixture is stirred, contacted, and heat-exchanged with the stirring shaft 3 and the stirring assembly 4, and the temperature is reduced.

[0052] (2) Under low temperature conditions, open the third valve 142 and the fourth valve 143, and close the first valve 132 and the second valve 133;

[0053] After feeding, the driving motor 62 is started, and the stirring shaft and the stirring assembly stir the concrete mixture. During the stirring process, the water in the water tank 11 is pumped into the heater 14 through the water pump 12, and after being heated in the heater 14, it enters the stirring shaft 3 through the second pipeline, the water inlet pipe 9, and the water inlet assembly 8, flows along the axial heat exchange cavity 301 of the stirring shaft 3, exchanges heat with the stirring shaft 3 and the stirring assembly 4, and then flows back to the water tank 11 through the water outlet assembly 7, the water outlet pipe 10, and the first pipeline, and the cycle is repeated. In this process, the concrete mixture is stirred, contacted, and heat-exchanged with the stirring shaft 3 and the stirring assembly 4, and the temperature rises.

[0054] The temperature of the heat exchange medium before and after the heat exchange is detected by the first thermometer 16 and the second thermometer 18, the flow rate of the heat exchange medium is measured by the flowmeter 19, and the heat transfer coefficient of the mixer body 100 is determined according to the experiment. According to the initial temperature and feed amount of the raw materials, by adjusting the mixing time, the flow rate of the heat exchange medium, and the temperature of the heat exchange medium entering the mixer, the concrete outlet temperature can be controlled within a smaller range.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also within the protection scope of the present invention.

Claims

1. A horizontal concrete mixer with temperature adjustment function, characterized in that: The invention comprises a mixer body, wherein the mixer body comprises a machine base (1), a machine casing (2), a mixing shaft (3), a mixing assembly (4), a first bearing seat (51), a second bearing seat (52), a driving device (6), a water outlet assembly (7), a water inlet assembly (8), a water inlet pipe (9) and a water outlet pipe (10); an axial heat exchange cavity (301) is arranged at the center of the mixing shaft (3); one end of the mixing shaft (3) extends from the machine casing (2) and passes through the first bearing seat (51) and the water outlet assembly (7) to connect to the driving device (6). The stirring shaft (3) is provided with a housing (6) and is driven to rotate by a driving device (6); the other end of the stirring shaft (3) extends from the housing (2) and passes through the second bearing seat (52) to connect to the water inlet assembly (8); the water inlet pipe (9) is connected to one end of the axial heat exchange cavity (301) through the water inlet assembly (8); the water outlet pipe (10) is connected to the other end of the axial heat exchange cavity (301) through the water outlet assembly (7); and a plurality of stirring assemblies (4) are fixed on the stirring shaft (3) at intervals in the axial direction, and their roots are tightly fitted to the stirring shaft (3).

2. A horizontal concrete mixer with temperature adjustment function according to claim 1, characterized in that: It also includes a water tank (11), a refrigerator (13) and a heater (14); the water outlet pipe (10) is connected to the water tank (11) through a first pipe; the water tank (11) is respectively connected to the refrigerator (13) and the heater (14) through a water pump (12); the refrigerator (13) and the heater (14) are connected to the water inlet pipe (9) through a second pipe.

3. A horizontal concrete mixer with temperature adjustment function according to claim 2, characterized in that: A first temperature gauge and a second temperature gauge are respectively provided on the first pipeline and the second pipeline.

4. The horizontal concrete mixer with temperature regulating function according to claim 1, characterized in that: The stirring assembly (4) comprises a stirring seat (41), a stirring rod (42) and a stirring blade (43); the stirring seat (41) is made of an arc plate matching the stirring shaft (3); the arc plate is attached to and fixed on the outer circumferential surface of the stirring shaft (3); the stirring rod (42) is fixed on the arc plate; a heat exchange medium flow channel is arranged in the stirring rod (42); the heat exchange medium flow channel is connected through a hole opened on the arc plate and the side wall of the stirring shaft.

5. The horizontal concrete mixer with temperature regulating function according to claim 4, characterized in that: The stirring seat (41) is fixed on the stirring shaft (3) by means of screws, and a graphite sealing gasket is arranged between the stirring seat (41) and the stirring shaft (3).

6. The horizontal concrete mixer with temperature regulating function according to claim 4, characterized in that: The middle part of the stirring blade (43) is provided with an annular connecting seat adapted to the stirring rod (42), and the annular connecting seat is provided with a notch. The stirring blade (43) is tightly sleeved on the stirring rod (42) through its annular connecting seat and is locked by a bolt (43) passing through the notch.

7. The horizontal concrete mixer with temperature regulating function according to claim 1, characterized in that: The stirring assembly (4) comprises a stirring blade (45), and the root of the stirring blade (45) is welded to the outer wall of the stirring shaft (3).

8. The horizontal concrete mixer with temperature regulating function according to claim 1, characterized in that: The water inlet assembly (8) is a rotary joint.

9. The horizontal concrete mixer with temperature regulating function according to claim 1, characterized in that: The water outlet assembly (7) comprises a rotating seat (71) and a fixed seat, the rotating seat (71) being fixedly sleeved on the stirring shaft (3), a first water outlet hole being provided in the rotating seat (71), and a second water outlet hole being provided in the stirring shaft (3); the fixed seat surrounds the outer periphery of the rotating seat (71) and is rotatably sealed with the stirring shaft (3) and the rotating seat (71), a water storage chamber (701) is provided between the fixed seat and the rotating seat (71), the water storage chamber (701) is communicated with the axial heat exchange chamber (301) via the first water outlet hole and the second water outlet hole, and the water outlet pipe (10) passes through the fixed seat and is communicated with the water storage chamber (701).

10. A method for adjusting the temperature of concrete out of a concrete machine, characterized in that: The horizontal concrete mixer with temperature regulating function according to claim 2 comprises: (1) During the mixing process, water in the water tank (11) is pumped into the refrigerator (13) through the water pump (12), and after cooling in the refrigerator (13), the water enters the mixing shaft (3) through the second pipe, the water inlet pipe (9), and the water inlet assembly (8), flows along the axial heat exchange cavity (301) of the mixing shaft (3), exchanges heat with the mixing shaft (3) and the mixing assembly (4), and then flows back to the water tank (11) through the water outlet assembly (7), the water outlet pipe (10), and the first pipe, and the cycle continues. In this process, the concrete mixture is mixed, contacted, and heat-exchanged with the mixing shaft (3) and the mixing assembly (4), and the temperature is reduced. (2) During the stirring process, water in the water tank (11) is pumped into the heater (14) through the water pump (12), and after being heated in the heater (14), the water enters the stirring shaft (3) through the second pipe, the water inlet pipe (9), and the water inlet assembly (8), flows along the axial heat exchange cavity (301) of the stirring shaft (3), exchanges heat with the stirring shaft (3) and the stirring assembly (4), and after being heated, flows back to the water tank (11) through the water outlet assembly (7), the water outlet pipe (10), and the first pipe, and the cycle continues. In this process, the concrete mixture is stirred, contacted, and heat-exchanged with the stirring shaft (3) and the stirring assembly (4), and the temperature rises.

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