Batching mechanism for preparing high-workability underwater concrete

Abstract

The invention provides a high-workability batching mechanism for underwater concrete preparation, and relates to the technical field of concrete preparation, the high-workability batching mechanism comprises a frame, a feed opening, an aggregate storage hopper and a powder storage hopper, the middle of the bottom end of the frame is fixedly connected with a weighing frame, and a flow guide plate is arranged in an inner cavity of the feed opening; a weighing hopper used for weighing the total weight of dry materials is arranged in the middle of the weighing frame, a multi-stage adding assembly used for adding additives is arranged at one end of the weighing frame, a discharging assembly used for outputting the materials is arranged at the bottom end of the weighing hopper, and first vibration motors are arranged at the front end and the rear end of the weighing hopper correspondingly. Different external additives are added through different pipelines through the multi-stage adding assembly, cross infection caused by mutual mixing is avoided, dry materials are weighed through the weighing hopper according to the total weight and then mixed with liquid, the proportion of the external additives can be adjusted in time according to the change of the total weight of the dry materials, and the mixing efficiency is improved. Therefore, the quality and the performance of the prepared high-workability underwater concrete are ensured.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of concrete preparation, in particular to a batching mechanism for preparing high workability underwater concrete. BACKGROUND

[0002] The high workability underwater concrete is designed for underwater environment, and needs to realize self-leveling and self-compaction under dynamic water or static water conditions and has anti-segregation capacity; the core is to ensure uniformity and stability of the concrete during pouring in water through low water-binder ratio, high-efficiency admixtures and special construction process; compared with ordinary concrete, the high workability underwater concrete needs to add high-efficiency water-reducing agent, viscosity regulator, retarder and anti-dispersion agent and other admixtures; the ordinary concrete is suitable for land environment, and realizes strength and durability requirements through conventional mix design (water-binder ratio 0.4-0.7) without considering the influence of underwater special environment.

[0003] However, when the high workability underwater concrete is prepared, various different high-efficiency external additives are usually added through the same pipeline or directly added, so that the residual external additives are prone to cross-infection in the pipeline, react after long-time mixing, and affect the quality and effect of the mixed concrete; and when the different external additives are directly added, the amount of the liquid material cannot be adjusted according to the total weight of the dry material. SUMMARY

[0004] The application solves the problems that different external additives are prone to cross-infection in the same pipeline, react with each other, and cannot be directly added to adjust the liquid ratio in time according to the total weight of the dry material.

[0005] In order to solve the above technical problems, the application provides a batching mechanism for preparing high workability underwater concrete, which comprises a frame and a discharging port arranged in the middle of the frame; the inner cavity top end of the frame is respectively provided with an aggregate storage hopper and a powder storage hopper; the bottom end of the frame is fixedly connected with a weighing frame; the inner cavity of the discharging port is provided with a flow guide plate; the middle of the weighing frame is provided with a weighing hopper for weighing the total weight of the dry material; one end of the weighing frame is provided with a multi-stage adding assembly for adding admixtures; the bottom end of the weighing hopper is provided with a discharging assembly for outputting the material; and the front and rear ends of the weighing hopper are both provided with a first vibrating motor. The multi-stage adding assembly comprises a support plate fixedly connected to one end of the weighing frame; a plurality of liquid metering pumps are fixedly installed on the support plate; the output end of the liquid metering pump is fixedly connected with a liquid adding pipe; and a plurality of liquid storage barrels for storing external additives are fixedly installed on the support plate. The output pipe is fixedly connected with the output pipe at one end away from the weighing hopper, the inner cavity of the output pipe is rotationally connected with a spiral conveying blade, and the bottom end of the output pipe is provided with a second vibration motor.

[0006] Preferably, the input end of one of the liquid metering pumps is connected with the output end of an external water source, the input ends of the other liquid metering pumps are connected with a liquid storage barrel through pipelines, and the end of the liquid feeding pipe away from the output end of the liquid metering pump is connected with the output pipe.

[0007] Preferably, the bottom end of the aggregate storage hopper, the powder storage hopper and the weighing hopper is fixedly connected with a feeding pipe, the bottom end of the feeding pipe is provided with a feeding sector gate, one end of the feeding sector gate is provided with a first motor, and the output end of the first motor is fixedly connected with the feeding sector gate.

[0008] Preferably, the inner cavity of the frame is provided with two belt scales at the top end, the top ends of the two belt scales are commonly provided with a protective cover, the bottom ends of the two feeding pipes are connected with the top ends of the two sides of the protective cover, and the feeding sector gate is located in the inner cavity of the protective cover.

[0009] Preferably, the two ends of the flow guide plate are fixedly connected with one end of the two belt scales, respectively, and the inner cavity of the flow guide plate is gradually inclined from the two sides to the middle.

[0010] Preferably, the top end of the weighing frame is provided with four weighing sensors, and the weighing hopper is located at the top end of the four weighing sensors.

[0011] Preferably, one end of the output pipe is fixedly provided with a second motor, the output end of the second motor penetrates through the output pipe and is fixedly connected with one end of the spiral conveying blade, the top end of the output pipe is fixedly connected with an adapter pipe away from the weighing hopper, and the feeding pipe at the bottom end of the weighing hopper is connected with the output pipe through the adapter pipe.

[0012] Preferably, the output end of the discharging assembly is provided with a double-shaft mixer, the end of the output pipe away from the output pipe is connected with the input end of the double-shaft mixer, and the output pipe is inclined from the output pipe to the double-shaft mixer.

[0013] The technical effects and advantages of the present application are as follows: 1. The present application adds different external additives by setting multi-stage adding assembly, stores different external additives in different liquid storage barrels, controls the adding amount of external additives according to the proportion of concrete, accurately calculates the amount of added liquid through the liquid metering pump, and adds to the inner cavity of the discharge pipe through the liquid adding pipe, different liquids are added through different pipelines, synchronous addition of multiple external additives can be realized, cross infection of different external additives in the pipeline can be avoided, reaction of various external additives mixed together for a long time in the pipeline can be prevented, the accuracy of the proportion of high workability underwater concrete is effectively improved, and the quality of the prepared high workability underwater concrete is ensured.

[0014] 2. The present application weighs the total weight of dry materials by setting a weighing hopper, first, the materials stored in the inner cavities of the aggregate storage hopper and the powder storage hopper are transported to the weighing hopper by the belt scale to ensure the accuracy of the total weight of dry materials, so that different external additives can be adjusted in time according to the change of the total weight of dry materials, the proportion of different external additives is prevented from being inaccurate, the quality and performance of the prepared high workability underwater concrete are affected, a first vibrating motor and a second vibrating motor are provided, the adhesion of the material to the inner wall of the weighing hopper is destroyed by the vibration of the first vibrating motor, so that the material slides quickly along the slope of the weighing hopper, the material in the inner cavity of the weighing hopper can be discharged cleanly, and the material is prevented from adhering and blocking at the pipe bend or the inner wall of the pipe by the vibration of the second vibrating motor, so that the feeding efficiency of the device is effectively improved.

[0015] 3. The present application reduces dust generated during material movement by setting a guide plate and a protective cover, the materials in the inner cavities of the aggregate storage hopper and the powder storage hopper are moved downward to the belt scale through the feeding pipe, and are transported to the downward discharge port direction through the belt scale, the material is protected by the protective cover during the transportation process on the belt scale, and the generation of dust during the falling or movement of the material is reduced, at the same time, the movement direction of the material is guided by the guide plate when the material falls from the belt scale, and the guide plate also has a buffering effect, so that the material can move in the inner cavity of the protective cover and the guide plate, and dust generated when the added material falls downward is prevented from spreading everywhere. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 It is a schematic diagram of the overall internal structure of the present application.

[0018] Figure 3 It is a schematic diagram of the multi-stage adding assembly structure of the present application.

[0019] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the present application.

[0020] Figure 5 Another perspective view of the whole structure of the present application.

[0021] Figure 6 A schematic view of the internal structure of the weighing frame of the present application.

[0022] The reference signs are: 1, frame; 2, discharging port; 3, aggregate storage hopper; 4, powder storage hopper; 5, weighing frame; 6, flow guide plate; 7, weighing hopper; 8, multi-stage adding assembly; 81, support plate; 82, liquid metering pump; 83, liquid filling pipe; 84, liquid storage barrel; 9, discharging assembly; 91, output pipe; 92, discharging pipe; 93, spiral conveying blade; 94, second vibration motor; 95, second motor; 96, adapter pipe; 10, first vibration motor; 11, feeding pipe; 12, feeding sector gate; 13, first motor; 14, belt scale; 15, protective cover; 16, weighing sensor; 17, double-shaft mixer. DETAILED DESCRIPTION

[0023] The present application provides a kind of high and easy water concrete preparation with batching mechanism, as shown in Figure 1 Figure 6 As shown, it includes frame 1 and discharging port 2 opened in the middle, the inner cavity top end of frame 1 is respectively provided with aggregate storage hopper 3 and powder storage hopper 4, aggregate (sand, stone) is stored by aggregate storage hopper 3, powder storage hopper 4 stores cement, fly ash and other powders, the bottom end of frame 1 is fixedly connected with weighing frame 5 in the middle, the inner cavity of discharging port 2 is provided with flow guide plate 6, the middle of weighing frame 5 is provided with weighing hopper 7 for weighing the total weight of dry materials, one end of weighing frame 5 is provided with multi-stage adding assembly 8 for adding admixture, the bottom end of weighing hopper 7 is provided with discharging assembly 9 for outputting materials, the front and rear ends of weighing hopper 7 are both provided with first vibration motor 10, the aggregate and powder stored in the inner cavity of aggregate storage hopper 3 and powder storage hopper 4 are added to the inner cavity of weighing hopper 7 after weighing, the total weight of dry materials is weighed by weighing hopper 7, which is conducive to adjusting the proportion and weight of water or external admixture that needs to be added, to ensure the quality and performance of high and easy water concrete prepared.

[0024] Further, as shown in Figure 1 and Figure 3 ​As shown, the multi-stage adding assembly 8 includes a support plate 81 fixedly connected to one end of the weighing frame 5, a plurality of liquid metering pumps 82 are fixedly installed on the support plate 81, the output end of the liquid metering pump 82 is fixedly communicated with a liquid adding pipe 83, a plurality of liquid storage barrels 84 for storing external additives are fixedly installed on the support plate 81, the external additives such as superplasticizer, viscosity regulator, retarder or dispersant preventing agent that need to be added are stored in different liquid storage barrels 84, so as to avoid that different external additives are mixed together for a long time and react with each other, which can easily affect the quality of the mixed concrete.

[0025] Further, as shown in Figure 1 and Figure 4 The discharge assembly 9 includes an output pipe 91 located at the bottom end of the weighing hopper 7, the output pipe 91 is fixedly communicated with a discharge pipe 92 at the end away from the weighing hopper 7, the inner cavity of the output pipe 91 is rotatably connected with a spiral conveying blade 93, and the bottom end of the discharge pipe 92 is provided with a second vibration motor 94. The dry material after weighing is conveyed through the spiral conveying blade 93, which can reduce the dust generated by the impact of the material falling downward when directly added, and is conveyed to the discharge pipe 92. When the material is discharged through the discharge pipe 92, the second vibration motor 94 is started to prevent the material from adhering and blocking at the pipe bend or the inner wall of the pipe, thereby effectively improving the feeding efficiency of the device.

[0026] Further, as shown in Figure 3 and Figure 4 The input end of one of the liquid metering pumps 82 is communicated with the output end of the external water source, the input ends of the other liquid metering pumps 82 are communicated with the liquid storage barrels 84 through pipes, and the end of the liquid adding pipe 83 away from the output end of the liquid metering pump 82 is connected with the discharge pipe 92. The amount of water added is calculated by one of the liquid metering pumps 82, and the amount of external additive added is calculated by the other liquid metering pumps 82. The amount of liquid added is accurately calculated by the liquid metering pump 82, and is added to the inner cavity of the discharge pipe 92 through the liquid adding pipe 83. Different liquids are added through different pipes, which can realize synchronous addition of multiple external additives, can avoid cross infection of different external additives in the pipe, and effectively improve the accuracy of the high workability underwater concrete proportioning, thereby ensuring the quality of the prepared high workability underwater concrete.

[0027] Further, as shown in Figure 2 and Figure 5As shown, the bottom end of the aggregate storage hopper 3, the powder storage hopper 4 and the weighing hopper 7 is fixedly connected with a feeding pipe 11, the bottom end of the feeding pipe 11 is provided with a feeding sector gate 12, one end of the feeding sector gate 12 is provided with a first motor 13, and the output end of the first motor 13 is fixedly connected with the feeding sector gate 12, the first motor 13 is started when the aggregate storage hopper 3, the powder storage hopper 4 and the weighing hopper 7 need to be fed, the output end of the first motor 13 controls the rotation of the feeding sector gate 12, so as to control the opening and closing of the feeding pipe 11, so that the materials stored in the inner cavities of the aggregate storage hopper 3, the powder storage hopper 4 and the weighing hopper 7 are fed downward through the feeding pipe 11.

[0028] Further, as shown in Figure 2 and Figure 5 The top end of the frame 1 is provided with two belt scales 14, and the top end of the two belt scales 14 is provided with a protective cover 15, wherein the bottom end of the two feeding pipes 11 is connected with the top end of the protective cover 15 on both sides, the feeding sector gate 12 is located in the inner cavity of the protective cover 15, the surface of the belt scale 14 is sleeved with a conveying belt, two first motors 13 are started when feeding is needed, the rotation of the feeding sector gate 12 is controlled to realize the opening of the feeding pipe 11 connected with the bottom end of the aggregate storage hopper 3 and the powder storage hopper 4, at the same time, the feeding sector gate 12 rotates in the inner cavity of the protective cover 15, effectively reducing the dust generated when the materials fall downward, and the materials stored in the inner cavities of the aggregate storage hopper 3 and the powder storage hopper 4 are fed downward to the conveying belt on the belt scale 14, wherein the belt scale 14 is composed of a metering roller, a sensor, a speed measuring device and a control instrument, and the existing technology is relatively mature, and will not be described in detail here, when the materials pass through the top end of the belt scale 14, the metering roller detects the weight of the materials on the conveying belt and acts on the weight sensor through a lever, the cumulative weight is obtained through the weight sensor, the first motor 13 is closed when the specified amount is reached, and the feeding is stopped, and the materials always move in the inner cavity of the protective cover 15 during the conveying process, and the generation of dust during the falling or moving of the materials is effectively reduced through the protective cover 15.

[0029] Further, as shown in Figure 5 The two ends of the guide plate 6 are fixedly connected with one end of the two belt scales 14, the inner cavity of the guide plate 6 gradually inclines from the two sides to the middle, the materials are conveyed downward to the downward opening 2 through the belt scale 14, fall into the inner cavity of the guide plate 6, and fall downward into the inner cavity of the weighing hopper 7 through the guide plate 6, so as to ensure that the materials can move in the inner cavities of the protective cover 15 and the guide plate 6, ensure the accuracy of the moving direction of the materials, and play a buffering role on the materials entering the inner cavity of the weighing hopper 7, preventing the dust generated when the added materials fall downward from spreading outward from the top of the weighing hopper 7.

[0030] Further, as shown in Figure 6As shown, the top end of the weighing frame 5 is provided with four weighing sensors 16, and the weighing hopper 7 is located at the top end of the four weighing sensors 16. The four weighing sensors 16 are evenly distributed at the four right angles of the top end of the weighing frame 5, forming four-point support, to ensure the accuracy of the weighing of the weighing hopper 7. When the material is added to the inner cavity of the weighing hopper 7, the gravity of the material in the hopper acts on the hopper body, and the weight of the material in the inner cavity of the weighing hopper 7 is calculated by the weighing sensor 16, to ensure the accuracy of the total weight of the dry material. After the total weight of the dry material is weighed, another first motor 13 is started to open and close the discharge pipe 11 at the bottom end of the weighing hopper 7, so that the material in the inner cavity of the weighing hopper 7 is discharged downward through the discharge pipe 11 into the inner cavity of the output pipe 91. At the same time, the first vibrating motor 10 is started to utilize vibration to break the adhesion between the material and the inner wall of the weighing hopper 7, so that the material quickly slides down along the inclined surface of the weighing hopper 7, to ensure that the material in the inner cavity of the weighing hopper 7 can be completely discharged.

[0031] Further, as shown in Figure 4 One end of the output pipe 91 is fixedly provided with a second motor 95, and the output end of the second motor 95 penetrates through the output pipe 91 and is fixedly connected with one end of the spiral conveying blade 93. The top end of the output pipe 91 is fixedly communicated with an adapter pipe 96 close to one end of the weighing hopper 7. The discharge pipe 11 at the bottom end of the weighing hopper 7 is communicated with the output pipe 91 through the adapter pipe 96. After the material in the inner cavity of the weighing hopper 7 flows downward from the discharge pipe 11, it enters the inner cavity of the output pipe 91 through the adapter pipe 96. At the same time, the second motor 95 is started to control the rotation of the spiral conveying blade 93 through the output end of the second motor 95, so that the dry material is conveyed out of the discharge pipe 92.

[0032] Further, as shown in Figure 1 and Figure 4 The output end of the discharge assembly 9 is provided with a double-shaft mixer 17. One end of the discharge pipe 92 away from the output pipe 91 is communicated with the input end of the double-shaft mixer 17. The discharge pipe 92 is inclined from the output pipe 91 to the double-shaft mixer 17. The double-shaft mixer 17 belongs to the prior art (referring to the existing product model JS500 double-shaft forced mixer), which mainly consists of a mixing drum, a feeding and discharging mechanism, a water supply system, a prime mover, a transmission mechanism, a frame and a supporting device. The prior art is relatively mature, and will not be described in detail here. The material, water and external additives are added to the inner cavity of the double-shaft mixer 17 through the discharge pipe 92. The high-efficiency mixing is realized by the reverse rotation of the stirring arms and blades, which can ensure that the material is fully and uniformly mixed, and avoid that the superfine powder-shaped raw materials are attached to the side wall and bottom of the mixer, to meet the preparation requirements of various external additives in high workability underwater concrete.

[0033] The working principle of the present application is as follows: firstly, the aggregate (sand, gravel) is stored in the aggregate storage hopper 3, the cement, fly ash and other powder materials are stored in the inner cavity of the powder storage hopper 4, then the high and easy water reducing agent, viscosity regulator, retarder or anti-dispersion agent and other external additives required for the preparation of high and easy underwater concrete are stored in the inner cavity of different liquid storage barrels 84, and the input end of one of the liquid metering pumps 82 is connected with the external water source through a pipeline. After the preparation of the materials is completed, firstly, two first motors 13 are started to control the rotation of the two feed fan doors 12 at the bottom end of the two feeding pipes 11 connected with the aggregate storage hopper 3 and the powder storage hopper 4, so as to control the opening and closing of the two feeding pipes 11. At the same time, the two feed fan doors 12 rotate on one side of the inner cavity of the protective cover 15, effectively reducing the dust generated when the materials fall downward. The materials stored in the inner cavities of the aggregate storage hopper 3 and the powder storage hopper 4 are then lowered to the belt scale 14 through the feeding pipes 11. When the materials pass through the top end of the belt scale 14, the material weight on the belt machine is detected by the metering roller, which acts on the weight sensor through a lever. The cumulative amount is obtained through the weight sensor. When the specified amount is reached, the first motor 13 is turned off to stop the feeding, and the materials are protected by the protective cover 15 during the conveying process on the belt scale 14, reducing the dust generated during the falling or moving of the materials. With the rotation of the belt machine in the belt scale 14, the materials are continuously conveyed to the downward direction of the discharge port 2, and fall downward into the inner cavity of the weighing hopper 7 through the flow guide plate 6, ensuring that the materials can move in the inner cavities of the protective cover 15 and the flow guide plate 6, ensuring the accuracy of the material moving direction, and at the same time buffering the materials entering the inner cavity of the weighing hopper 7 to prevent the dust generated when the added materials fall downward from spreading to the outside of the weighing hopper 7. When the materials are added to the inner cavity of the weighing hopper 7, the material gravity acts on the hopper body, and the material weight in the inner cavity of the weighing hopper 7 is calculated by the weighing sensor 16. After the total weight of the dry materials reaches the standard, the other first motor 13 is started to control the rotation of the other feed fan door 12, so as to realize the opening and closing of the feeding pipe 11 at the bottom end of the weighing hopper 7, so that the materials in the inner cavity of the weighing hopper 7 fall downward to the inner cavity of the output pipe 91 through the feeding pipe 11. At the same time of feeding, the first vibration motor 10 is started to utilize vibration to break the adhesion between the materials and the inner wall of the weighing hopper 7, so that the materials quickly slide down along the inclined surface of the weighing hopper 7. Then the second motor 95 is started to control the rotation of the spiral conveying blade 93 through the output end of the second motor 95. With the rotation of the spiral conveying blade 93, the dry materials are conveyed out of the discharge pipe 92, so that the dry materials are added to the inner cavity of the double-shaft mixer 17 through the discharge pipe 92. At the same time of adding the dry materials, a plurality of liquid metering pumps 82 are started to accurately calculate the amount of added liquid, and the external additives in the inner cavity of the liquid storage barrel 84 and the external water source are added to the inner cavity of the discharge pipe 92 through the liquid adding pipe 83. Different liquids are added through different pipelines, which can realize the synchronous addition of multiple external additives and can also avoid the cross infection of different external additives in the pipeline. During the feeding process of the discharge pipe 92, the second vibration motor 94 is started,Through the vibration of the second vibration motor 94, the ingredients are prevented from adhering and blocking at the pipe turning or the inner wall of the pipe, and finally the material is fully stirred by the double-shaft stirrer 17 to meet the preparation requirements of various external additives in high and easy workability underwater concrete.

[0034] It is to be understood that the present application is described by way of example only, and that modifications and variations thereto falling within the scope of the application can be made by those skilled in the art. In addition, modifications and variations can be made to the features and embodiments described herein to adapt them to particular situations and materials without departing from the spirit and scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be within the scope of the present application.

Claims

1. A batching mechanism for preparing highly workable underwater concrete, comprising a frame (1) and a discharge port (2) located in the middle thereof, wherein an aggregate storage hopper (3) and a powder storage hopper (4) are respectively provided at the top of the inner cavity of the frame (1), characterized in that: A weighing frame (5) is fixedly connected to the middle of the bottom end of the frame (1). A guide plate (6) is provided in the inner cavity of the discharge port (2). A weighing hopper (7) for weighing the total weight of dry materials is provided in the middle of the weighing frame (5). A multi-stage additive assembly (8) for adding admixtures is provided at one end of the weighing frame (5). A discharge assembly (9) for discharging materials is provided at the bottom end of the weighing hopper (7). A first vibration motor (10) is provided at both the front and rear ends of the weighing hopper (7). The multi-stage additive assembly (8) includes a support plate (81) fixedly connected to one end of the weighing frame (5), a plurality of liquid metering pumps (82) are fixedly installed on the support plate (81), the output end of the liquid metering pumps (82) is fixedly connected to a liquid addition pipe (83), and a plurality of liquid storage tanks (84) for storing external additives are fixedly installed on the support plate (81). The discharge assembly (9) includes an output pipe (91) located at the bottom of the weighing hopper (7). The end of the output pipe (91) away from the weighing hopper (7) is fixedly connected to a discharge pipe (92). The inner cavity of the output pipe (91) is rotatably connected to a spiral conveying blade (93). A second vibration motor (94) is installed at the bottom of the discharge pipe (92).

2. The batching mechanism for preparing highly workable underwater concrete according to claim 1, characterized in that: One of the liquid metering pumps (82) has its input end connected to the output end of an external water source, and the input ends of several other liquid metering pumps (82) are connected to a storage tank (84) via pipes. The end of the liquid adding pipe (83) away from the output end of the liquid metering pump (82) is connected to the discharge pipe (92).

3. The batching mechanism for preparing highly workable underwater concrete according to claim 1, characterized in that: The bottom ends of the aggregate storage hopper (3), powder storage hopper (4) and weighing hopper (7) are all fixedly connected to a feeding pipe (11). The bottom end of the feeding pipe (11) is provided with a feeding fan-shaped gate (12). One end of the feeding fan-shaped gate (12) is provided with a first motor (13) and is fixedly connected to the output end of the first motor (13).

4. The batching mechanism for preparing highly workable underwater concrete according to claim 3, characterized in that: Two belt scales (14) are provided at the top of the inner cavity of the frame (1). The top of the two belt scales (14) are provided with a protective cover (15). The bottom ends of the two feeding pipes (11) are connected to the top sides of the protective cover (15). The feeding fan-shaped door (12) is located in the inner cavity of the protective cover (15).

5. A batching mechanism for preparing highly workable underwater concrete according to claim 4, characterized in that: The two ends of the guide plate (6) are fixedly connected to one end of the two belt scales (14), and the inner cavity of the guide plate (6) gradually slopes from both sides to the middle.

6. The batching mechanism for preparing highly workable underwater concrete according to claim 1, characterized in that: The weighing frame (5) is equipped with four weighing sensors (16) at its top, and the weighing hopper (7) is located at the top of the four weighing sensors (16).

7. The batching mechanism for preparing highly workable underwater concrete according to claim 1, characterized in that: A second motor (95) is fixedly installed at one end of the output pipe (91). The output end of the second motor (95) passes through the output pipe (91) and is fixedly connected to one end of the spiral conveying blade (93). A transfer pipe (96) is fixedly connected to the top end of the output pipe (91) near the weighing hopper (7). The feeding pipe (11) at the bottom of the weighing hopper (7) is connected to the output pipe (91) through the transfer pipe (96).

8. The batching mechanism for preparing highly workable underwater concrete according to claim 1, characterized in that: The output end of the discharge assembly (9) is equipped with a twin-shaft mixer (17). The end of the discharge pipe (92) away from the output pipe (91) is connected to the input end of the twin-shaft mixer (17). The discharge pipe (92) is inclined from the output pipe (91) toward the twin-shaft mixer (17).

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