Heating device of mixing station

Abstract

The heating device of the mixing station comprises an air energy heat pump and a hot water tank, the air energy heat pump is provided with a cold water pipe, a hot water pipe and a circulating water pump, the cold water pipe and the hot water pipe are connected to the bottom and the top of the hot water tank respectively, and the circulating water pump is connected to the hot water tank and installed on the cold water pipe. The hot water tank passes through a first water supply pump and a second water supply pump, the first water supply pump is connected to a water adding opening of the concrete mixing equipment through a concrete water pipeline, and the second water supply pump is connected to a heating coil and an indoor heating radiator arranged on the ground of the stockpiling device through a geothermal pipeline and a heating pipeline. According to the utility model, the heating coil ensures that the temperature of sand can reach a set temperature range for adding, and the added hot water can also reach the set temperature range for adding, so that the performance quality of finally stirred concrete can be ensured, and the influence on construction and final pouring forming quality is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the auxiliary equipment technical field of concrete mixing station relates to a heating device of mixing station. BACKGROUND

[0002] Concrete mixing station as the concrete mixing equipment that high speed rail and high speed road construction process commonly uses, can adapt to the use demand of large quantities of concrete, the concrete used in the construction process of northern winter is affected by low temperature, the temperature of sand and water is too low, all can influence the final forming performance of concrete, especially below minus 10 below zero, influence is greater. SUMMARY

[0003] The utility model solves the technical problem that provides a heating device of mixing station, can avoid the influence of concrete quality under low temperature.

[0004] The utility model adopts the technical scheme that a heating device of mixing station, including air energy heat pump and hot water tank, air energy heat pump is provided with cold water pipe, hot water pipe and circulating water pump, cold water pipe and hot water pipe are connected to the bottom and top of hot water tank respectively, and circulating water pump is connected to hot water tank, circulating water pump is installed on cold water pipe, hot water tank passes through water supply water pump one and water supply water pump two, water supply water pump one is connected to the water inlet of concrete mixing equipment through concrete water pipeline, and water supply water pump two is connected to the heating coil and indoor radiator arranged on the ground of stockpiling device through geothermal pipeline and heating pipeline respectively.

[0005] Further, the upper side and the lower side of the heating coil are respectively arranged with a coarse steel mesh layer and a fine steel mesh layer, the heating coil, the coarse steel mesh layer and the fine steel mesh layer are arranged in the concrete on the bottom surface to form a reinforcing support layer, and a support strip is arranged between the fine steel mesh layer and the foundation.

[0006] Further, the heating device of the mixing station further comprises a temperature sensor for detecting the temperature of the sand and gravel, the temperature sensor adopts a thermocouple, the temperature sensor is arranged in the heat pipe, the lower end of the heat pipe is provided with a sharp part, the upper end of the heat pipe is fixedly connected to the fixed push plate, the fixed push plate is connected to the sliding plate through two guide rods and a linear bearing, and the two guide rods are fixedly connected to the linkage plate after penetrating through the two end portions of the sliding plate, a connecting lug is arranged on the front side of the fixed push plate, the connecting lug is fixedly connected to the cylinder rod of the air cylinder, the cylinder base of the air cylinder is fixedly connected to the sliding plate, the sliding plate is connected to the sliding block one of the vertical linear module, the back surface of the vertical linear module is fixedly connected to the transition plate, the transition plate is fixedly connected to the sliding block two of the horizontal linear moving module, the horizontal linear moving module is fixedly connected to the crossbeam, the crossbeam is fixedly connected to the tracks above the two partition walls through the front and rear walking mechanisms, and the two partition walls are the two partition walls across the outermost sides of the plurality of sand and gravel bins.

[0007] Further, the above-mentioned circulating water pump is connected to the ground through a damping mechanism.

[0008] Further, a water tank temperature sensor is installed in the above-mentioned hot water tank.

[0009] The air energy heat pump is used for heating the hot water tank, and the water pump is used for heating the geothermal heating coil and the radiator and adding water used in the concrete mixing process. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a structure schematic view of the heating device of the mixing station.

[0011] Fig. 2 It is a front view structure schematic view of the temperature sensor installation.

[0012] Fig. 3 It is a side view structure schematic view of the temperature sensor installation.

[0013] Fig. 4 It is a top view structure schematic view of the temperature sensor installation.

[0014] Fig. 5 It is a heating coil arrangement cross-section structure schematic view.

[0015] Fig. 6 It is a heating coil connection structure schematic view. DETAILED DESCRIPTION

[0016] The utility model will be further introduced in combination with the drawings and specific embodiments.

[0017] Embodiment 1: as Figs. 1-6As shown, a heating device of a mixing station includes an air energy heat pump 1 and a hot water tank 2, the air energy heat pump 1 is provided with a cold water pipe 3, a hot water pipe 4 and a circulating water pump 5, the cold water pipe 3 and the hot water pipe 4 are connected to the bottom and the top of the hot water tank 2 respectively, the circulating water pump 5 is connected to the hot water tank 2, the circulating water pump 5 is installed on the cold water pipe 3, the hot water tank 2 is connected to the water inlet of a concrete mixing device 9 through a water supply pump one 6 and a water supply pump two 7, the water supply pump one 6 is connected to the water inlet of the concrete mixing device 9 through a concrete water pipe 8, the water supply pump two 7 is connected to a heating coil 11 arranged on the ground of a stock device and a room radiator 35 through a geothermal pipe 10 and a heating pipe 36 respectively.

[0018] The working principle of the air energy heat pump is to use the heat pump principle to obtain heat from the surrounding environment by consuming part of the electric energy, and to deliver it to the condenser through the compressor to heat the water in the water tank. Its energy efficiency is more than 3 times higher than that of traditional electric water heaters. It is a new type of high-efficiency, energy-saving and environmentally friendly hot water product. When the unit is running in summer, it uses refrigeration cycle to cool the water (cooling agent), and in winter it uses heat pump cycle to heat the water. Cold (hot) water is pumped to the predetermined site to achieve the purpose of delivering cold (hot) quantity.

[0019] A heating coil 11 is installed on the bottom surface of the stock bin 41, which can heat and insulate the stacked sand and gravel, heat it to the required temperature range of concrete, and then add it to the mixing device to mix into concrete, improve the performance of concrete at low temperature, and avoid the performance of concrete being greatly affected due to too low temperature.

[0020] In order to improve the safety of the heating coil during use, avoid the truck from entering and crushing the heating coil, the upper side and the lower side of the heating coil 11 are respectively arranged with a coarse steel mesh layer 12 and a fine steel mesh layer 13, the heating coil 11, the coarse steel mesh layer 12 and the fine steel mesh layer 13 are placed in the concrete on the bottom surface to form a reinforced support layer, the coarse steel mesh layer 28 and the fine steel mesh layer 29 can better bear the stress during use, and the stress is evenly distributed, avoiding local damage caused by stress concentration. The support strip 15 is arranged between the fine steel mesh layer 13 and the foundation 14, which facilitates the filling and compaction of concrete on the foundation 14, and the concrete poured with the heating coil 11 is a layer of concrete poured later, which forms an integral structure with the foundation 14.

[0021] After heating the sandstone, in order to facilitate the measurement of the temperature of the sandstone, and then change or stop the heating, the heating device of the mixing station further comprises a temperature sensor 16 for detecting the temperature of the sandstone, the temperature sensor 16 adopts a thermocouple, the temperature sensor 16 is arranged in the heat conducting pipe 17, the lower end of the heat conducting pipe 17 is provided with a sharp part 42, the upper end of the heat conducting pipe 17 is fixedly connected to the fixed push plate 18, the fixed push plate 18 is connected to the sliding plate 21 through two guide rods 19 and linear bearings 20, and the two guide rods 19 are fixedly connected to the linkage plate 22 after penetrating through the two end portions of the sliding plate 21, the front side of the fixed push plate 18 is provided with a connecting lug 23, the connecting lug 23 is fixedly connected to the cylinder rod of the air cylinder 24, the cylinder base of the air cylinder 24 is fixedly connected to the cylinder base connecting lug 38 arranged on the front side of the horizontal plate of the sliding plate 21, the sliding plate 21 is connected to the sliding block one of the vertical linear module 25, the back surface of the vertical linear module 25 is fixedly connected to the transition plate 26, the transition plate 26 is fixedly connected to the sliding block two of the horizontal linear moving module 27, the horizontal linear moving module 27 is fixedly connected to the cross beam 28, the cross beam 28 is fixedly connected to the track 30 connected above the two partition walls 31 through the front and rear walking mechanisms 29, the two partition walls 31 are two partition walls across the outermost sides of a plurality of sandstone bins 33, by controlling the temperature sensor to measure a plurality of points in each bin where the sandstone is stacked, the measurement of different positions and different depths is realized, the average value of a plurality of values of each sandstone bin is calculated as an evaluation value, the measurement is more accurate, the linear module moves, the moving distance is accurate and stable, the sharp part is inserted in the guide mode, the heat conducting pipe is prevented from being damaged, the service life of the heat conducting pipe is prolonged, the temperature sensor of the thermocouple is protected by the heat conducting pipe, the service life of the thermocouple is also prolonged, the problem that the thermocouple is easily damaged by being directly inserted into the sandstone is avoided, the fixed push plate supported by the double guide rods moves under the pushing of the air cylinder, the thermocouple moves, stable insertion is realized, the linear module is also convenient for the air cylinder to lift, and collision with the partition wall in the two sandstone bins is avoided.

[0022] In order to avoid waste of water resources, the heating coil 11 arranged below each sandstone bin 41 is connected in parallel to the geothermal pipe 10, the geothermal pipe 10 is connected to the water supply pump one 7 and the hot water tank 2 through a circulating pipeline, the hot water tank 2 is provided with a heating device, water resources are circulated back and forth through circulation, waste of water resources and energy is avoided, cost is reduced, and independent heating is realized, the geothermal pipe 10 comprises a water inlet main pipe and a water outlet main pipe, the heating coil of each bin is connected in a single-bin circulating independent mode through the geothermal pipe 10, in order to facilitate independent control, the water inlet main pipe and the water outlet main pipe are both provided with electric valves.

[0023] In order to simplify the support structure and stabilize the support, the track 30 is fixedly connected to the partition wall 31 through two channel steel columns 32, the grooves of the two channel steel columns 32 are oppositely arranged, and at least one high-added baffle 37 is detachably mounted between the two channel steel columns 32. By using two channel steel columns, the support stability of the track can be greatly improved, and the channel steel column can realize the high-added operation, which is high, easy and convenient. The high-added baffles 37 are tightly fitted in the grooves at both ends, and the butt joints of adjacent two high-added baffles are respectively provided with clamping grooves and protruding splices, so that the sealing property and the support stability are improved.

[0024] In order to reduce the possibility that the pipe interface is damaged due to long-term vibration of the circulating water pump, the circulating water pump 5 is connected to the ground through a damping mechanism. Through the damping mechanism, the vibration of the circulating water pump can be reduced.

[0025] Further, the water tank temperature sensor 34 is installed in the hot water tank 2, and the water adding pipe 39 and the water level sensor 40 are installed on the top of the hot water tank 2.

[0026] Each sandstone bin 41 is provided with a barrier machine at the discharging side. When the sandstone of the corresponding sandstone bin is needed, the barrier machine is opened, and the forklift enters to transfer the material, so that the sandstone grade of the concrete is not wrong due to the promotion of the material site. The partition wall 31 is provided with a length scale and a plurality of height scales on both sides. The plurality of height scales are uniformly arranged along the front and rear directions. According to the height scale and the length scale, and the known width of the sandstone bin, the specific amount of sandstone can be roughly evaluated. Each sandstone bin is provided with a display screen installed on the partition wall, which is used for the aggregate type, particle size, remaining sandstone amount and temperature.

[0027] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A heating device for a mixing station, characterized in that: The utility model provides an air energy heat pump (1) and hot water tank (2), air energy heat pump (1) is provided with cold water pipe (3), hot water pipe (4) and circulating water pump (5), cold water pipe (3) and hot water pipe (4) are connected to hot water tank (2) bottom and top respectively, and circulating water pump (5) is connected to hot water tank (2), and circulating water pump (5) is installed on cold water pipe (3), and hot water tank (2) passes through water supply pump one (6) and water supply pump two (7), and water supply pump one (6) is connected to the water inlet of concrete mixing equipment (9) through concrete water pipe (8), and water supply pump two (7) is connected to heating coil (11) and indoor radiator (35) arranged on the ground of material stacking device respectively through geothermal pipeline (10) and heating pipeline (36).

2. A heating device for a mixing station according to claim 1, characterised in that: Coarse reinforcement mesh layer (12) and fine reinforcement mesh layer (13) are arranged on the upper side and the lower side of heating coil (11) respectively, and heating coil (11), coarse reinforcement mesh layer (12) and fine reinforcement mesh layer (13) are arranged in the concrete of the bottom surface to form a reinforced support layer, and support strips (15) are arranged between fine reinforcement mesh layer (13) and foundation (14).

3. A heating device for a mixing station according to claim 2, characterised in that: It also includes a temperature sensor (16) for detecting the temperature of sand and gravel, the temperature sensor (16) uses a thermocouple, the temperature sensor (16) is placed in a heat conducting pipe (17), the lower end of the heat conducting pipe (17) is provided with a sharp part (42), the upper end of the heat conducting pipe (17) is fixedly connected to a fixed push plate (18), the fixed push plate (18) is connected to a sliding plate (21) through two guide rods (19) and a linear bearing (20), and the two guide rods (19) are fixedly connected to a linkage plate (22) after penetrating through the two end portions of the sliding plate (21), a connecting lug (23) is arranged on the front side of the fixed push plate (18), the connecting lug (23) is fixedly connected to the cylinder rod of a pneumatic cylinder (24), the cylinder base of the pneumatic cylinder (24) is fixedly connected to the sliding plate (21), the sliding plate (21) is connected to the sliding block one of a vertical linear module (25), the back surface of the vertical linear module (25) is fixedly connected to a transition plate (26), the transition plate (26) is fixedly connected to the sliding block two of a horizontal linear moving module (27), the horizontal linear moving module (27) is fixedly connected to a cross beam (28), the cross beam (28) is fixedly connected to a track (30) which is connected to the upper sides of two partition walls (31) through front and rear walking mechanisms (29), and the two partition walls (31) are two partition walls which are connected to the outermost sides of a plurality of sand and gravel bins (33).

4. A heating device for a mixing station according to claim 1, characterized in that: The circulating water pump (5) is connected to the ground through a damping mechanism.

5. A heating device for a mixing station according to claim 1, characterized in that: A water tank temperature sensor (34) is installed in the hot water tank (2).

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