A dry mortar production device

Abstract

The present invention relates to a dry mortar production device, comprising a mixing tank, wherein a plurality of raw material storage and weighing devices are arranged above the mixing tank, the raw material storage and weighing devices comprise a raw material tank, a feeding pipe and a first raw material conveying pipe are arranged on the raw material tank, a first pneumatic butterfly valve and a raw material weighing tank are arranged on the first raw material conveying pipe in sequence, the first raw material conveying pipe and the mixing tank are connected through a second raw material conveying pipe, an angle between the second raw material conveying pipe and the first raw material conveying pipe is 30 to 60 degrees, a connection between the second raw material conveying pipe and the first raw material conveying pipe is located between the bottom end of the first raw material conveying pipe and the raw material weighing tank, a mixing device is arranged on the mixing tank, an auxiliary material feeding pipe is arranged on the mixing tank, a finished material tank is arranged below the mixing tank, and a second pneumatic butterfly valve is arranged on the finished material conveying pipe; the durability of the solid raw material conveying pipeline is improved, the present invention is easy to use, and has broad market prospects.

Description

Technical Field

[0001] The invention relates to the field of dry-mix mortar production, and in particular to a dry-mix mortar production device. Background Art

[0002] The dry mortar production line series equipment production line is mainly composed of elevator, premixing bin, mixer, finished product bin, packaging machine, dust collector, electric control cabinet, gas phase balance system. Cement and other large-proportion raw materials can be manually measured through the elevator into the premixing bin, and small-proportion precious masterbatch such as cellulose and rubber powder can be measured by electronic scales and put into the admixture hopper. After the various components of the dry mortar are added to the premixing bin in turn, they are fully stirred by the stirring blades set in the premixing bin to form a finished product, and then enter the finished product bin for small bag packaging or load into the dry mortar transport vehicle.

[0003] However, various solid components are now usually transported through pipelines through spiral conveying or the gravity of the material itself. Although the use of the gravity of the material itself to transport in the pipeline saves the corresponding power device, the solid components usually cause serious wear and tear on the pipeline, especially the corners of the pipeline where high-velocity solid materials pass through for a long time, causing impact and wear. The durability of the equipment is greatly reduced, and it is often necessary to stop production for maintenance, resulting in a significant reduction in production efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a dry-mix mortar production device with a simple structure and capable of simply changing the mechanical structure to improve the durability of the production device, so as to overcome the defects in the prior art.

[0005] The technical solution adopted by the present invention is: a dry mortar production device, characterized in that: it includes a mixing tank, and a plurality of raw material storage and weighing devices are arranged above the mixing tank, the raw material storage and weighing device includes a raw material tank, a feeding pipe and a first raw material conveying pipe are arranged on the raw material tank, the feeding pipe and the first raw material conveying pipe are respectively connected to the raw material tank, a first pneumatic butterfly valve and a raw material weighing tank are arranged on the first raw material conveying pipe in sequence, the first raw material conveying pipe and the mixing tank are connected through a second raw material conveying pipe, the angle between the second raw material conveying pipe and the first raw material conveying pipe is 30 degrees to 60 degrees, the connection between the second raw material conveying pipe and the first raw material conveying pipe is located between the bottom end of the first raw material conveying pipe and the raw material weighing tank, a mixing device is arranged on the mixing tank, an auxiliary material feeding pipe is arranged on the mixing tank, the auxiliary material feeding pipe is connected to the mixing tank, a finished material tank is arranged below the mixing tank, the finished material tank and the mixing tank are connected through the finished material conveying pipe, and a second pneumatic butterfly valve is arranged on the finished material conveying pipe.

[0006] The mixing device comprises a mixing motor, a mixing shaft is fixedly arranged on the output end of the mixing motor, the mixing shaft is sleeved on the mixing tank, and a mixing spiral blade is fixedly arranged on the mixing shaft.

[0007] A bag dust collector is arranged on one side of the mixing tank, the raw material tank is connected with the input end of the bag dust collector through a first dust extraction pipe, and an induced draft fan is arranged on the bag dust collector.

[0008] The feeding pipe is vertically fixedly installed on the top of the mixing tank. The top of the feeding pipe adopts a bell-mouth structure, and a sieve plate is fixedly arranged inside the bell-mouth structure.

[0009] The first raw material delivery pipe is vertically installed below the raw material tank, the top of the first raw material delivery pipe is fixedly connected to the bottom of the raw material tank, a first maintenance butterfly valve is arranged at the bottom of the top of the first raw material delivery pipe, and a second maintenance butterfly valve is arranged at the top of the second raw material delivery pipe.

[0010] The raw material tank and the first raw material delivery pipe are equipped with a raw material delivery shaft, a raw material delivery motor is arranged on the top of the raw material tank, the output end of the raw material delivery motor is fixedly connected to the top end of the raw material delivery shaft, a raw material delivery spiral blade is fixedly arranged on the raw material delivery shaft, and the raw material delivery spiral blade is installed in the first raw material delivery pipe above the first pneumatic butterfly valve.

[0011] The mixing tank adopts a closed cylindrical structure consisting of a fixed part and a movable part. The movable part is installed below the fixed part. One end of the top of the movable part is hinged to the corresponding end of the fixed part, and the other end of the top of the movable part is movably connected to the fixed part. A finished product temporary storage bin is provided below the mixing tank. The top of the finished product temporary storage bin and the outer wall of the fixed part are fixedly connected by welding. The movable part is located in the finished product temporary storage bin. The bottom of the finished product temporary storage bin adopts a prism-shaped tubular structure. A discharge control device is provided at the bottom of the movable part. The finished product temporary storage bin is connected to the input end of the bag filter through a second dust extraction pipe.

[0012] A first dust extraction and conveying pipe is arranged below the dust outlet end of the bag-type dust collector, and a second dust extraction and conveying pipe is arranged below the first dust extraction and conveying pipe. The dust outlet end of the bag-type dust collector and the second dust extraction and conveying pipe are respectively connected with the first dust extraction and conveying pipe, and a third pneumatic butterfly valve and a dust extraction weighing tank are arranged in sequence on the second dust extraction and conveying pipe. A dust extraction and conveying shaft is sheathed in the second dust extraction and conveying pipe, and a dust extraction and conveying spiral blade is fixed on the dust extraction and conveying shaft. A dust extraction and conveying motor is arranged outside the second dust extraction and conveying pipe, and the output end of the dust extraction and conveying motor is fixedly connected to the end of the dust extraction and conveying spiral blade.

[0013] The discharging control device described includes a pneumatic telescopic rod, which is arranged on a finished product temporary storage bin, a support frame is fixedly arranged on the outer side of the finished product temporary storage bin, a cylinder body of the pneumatic telescopic rod and the support frame are hinged, an output end of the pneumatic telescopic rod and the bottom end of the movable part are hinged, a pneumatic telescopic rod passing hole is opened on the finished product temporary storage bin, the pneumatic telescopic rod passes through the pneumatic telescopic rod passing hole, a sealing rubber is arranged on the outer side of the pneumatic telescopic rod passing hole, and the outer wall of the finished product temporary storage bin and the pneumatic telescopic rod are respectively fixedly connected to the pneumatic telescopic rod by bonding.

[0014] The beneficial effects of the present invention are as follows: firstly, the present invention has a simple structure, including a mixing tank, a raw material tank, a feeding pipe, a first raw material conveying pipe, a first pneumatic butterfly valve, a raw material weighing tank, a second raw material conveying pipe, an auxiliary material feeding pipe, a finished material tank, a finished material conveying pipe and a second pneumatic butterfly valve; secondly, the connection between the second raw material conveying pipe and the first raw material conveying pipe is located between the bottom end of the first raw material conveying pipe and the raw material weighing tank, and during the transmission of solid materials, a material accumulation layer will be formed in the first raw material conveying pipe below the connection between the second raw material conveying pipe and the first raw material conveying pipe. The material accumulation layer is consistent with the composition of the solid materials transmitted in the corresponding pipeline, and the Mohs hardness is basically the same, which avoids the solid materials from being transported during the transmission process. Direct impact on the corner of the pipeline causes increased wear of the pipeline, thereby improving the durability of the equipment; finally, by arranging a raw material conveying motor, a raw material conveying shaft and a raw material conveying spiral blade, it is convenient to control the speed of solid raw material conveying, thereby avoiding the first pneumatic butterfly valve and the raw material weighing tank being impacted by the solid raw material flow rate for a long time, which leads to a reduction in the service life of the first pneumatic butterfly valve and the raw material weighing tank. At the same time, since the flow rate of the solid raw material is reduced, the raw material weighing tank can be given sufficient stabilization time, making the weighing more accurate and facilitating the improvement of product quality; the present invention has a simple structure, is easy to operate, and is cleverly designed, greatly improves work efficiency, has good social and economic benefits, and is a product that is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of detail A.

[0017] Figure 3 for Figure 1 A partial enlarged schematic diagram of detail B.

[0018] Figure 4 for Figure 1 A partial enlarged schematic diagram of detail C.

[0019] Figure 5 It is a schematic diagram of the structure of the present invention.

[0020] Figure 6 It is a schematic diagram of the component structure of the present invention.

[0021] Figure 7 for Figure 6 A partial enlarged schematic diagram of detail D.

[0022] Figure 8 It is a schematic diagram of the cross-sectional structure of the components of the present invention. DETAILED DESCRIPTION

[0023] like Figure 1 , 2 , 3, 4, 5, 6, 7, and 8, a dry mortar production device comprises a mixing tank 1, and a plurality of raw material storage and weighing devices are arranged above the mixing tank 1. The raw material storage and weighing devices comprise a raw material tank 2, and the raw material tank 2 is provided with a feeding pipe 3 and a first raw material conveying pipe 4, and the feeding pipe 3 and the first raw material conveying pipe 4 are respectively connected to the raw material tank 2, and the first raw material conveying pipe 4 is sequentially provided with a first pneumatic butterfly valve 5 and a raw material weighing tank 6, and the first raw material conveying pipe 4 is connected to the mixing tank 1 through a second raw material conveying pipe 7, and the angle between the second raw material conveying pipe 7 and the first raw material conveying pipe 4 is 30 degrees to 60 degrees, and the second raw material conveying pipe 7 and the first raw material conveying pipe 4 are connected. A connection point of a raw material conveying pipe 4 is located between the bottom end of the first raw material conveying pipe 4 and the raw material weighing tank 6. A mixing device is provided on the mixing tank 1. An auxiliary material feeding pipe 8 is provided on the mixing tank 1. The auxiliary material feeding pipe 8 is fixedly installed above the mixing tank 1. A stop valve is fixedly provided on the auxiliary material feeding pipe 8. The auxiliary material feeding pipe 8 is vertically installed on the mixing tank 1. The auxiliary material feeding pipe 8 is connected to the mixing tank 1. A finished material tank 9 is provided below the mixing tank 1. The finished material tank 9 and the mixing tank 1 are connected through a finished material conveying pipe 10. The finished material tank 9 and the mixing tank 1 are respectively welded and fixed to the finished material conveying pipe 10. A second pneumatic butterfly valve 11 is fixedly provided on the finished material conveying pipe 10.

[0024] The mixing device comprises a mixing motor 12 , the output end of the mixing motor 12 and a mixing shaft 13 are fixedly connected via a coupling, the mixing shaft 13 is sleeved on the mixing tank 1 , and a mixing spiral blade 14 is welded and fixed on the mixing shaft 13 .

[0025] A bag dust collector 15 is provided on one side of the mixing tank 1, and the raw material tank 2 is connected to the input end of the bag dust collector 15 through a first dust extraction pipe 16. The first dust extraction pipe 16 of the raw material tank 2 is fixedly connected by welding. An induced draft fan 17 is provided on the bag dust collector 15, and the induced draft fan 17 is connected to the bag dust collector 15. By setting a dust removal device including the bag dust collector 15, the induced draft fan 17 and the first dust extraction pipe 16, it is beneficial to reduce dust in the air during the production process and protect the life safety of the operator.

[0026] The feeding pipe 3 is vertically installed on the top of the mixing tank 1, and the feeding pipe 3 and the mixing tank 1 are fixedly connected by welding. The top of the feeding pipe 3 adopts a bell-mouth structure, and a sieve plate 18 is fixedly arranged in the bell-mouth structure. The aperture of the sieve plate 18 is 3.0 mm to 4.5 mm. By using the sieve plate 18, large pieces of solid impurities mixed in the raw materials can be filtered out, thereby improving the quality of the dry mortar. The first raw material conveying pipe 4 is vertically installed below the raw material tank 2. Since the connection between the second raw material conveying pipe 7 and the first raw material conveying pipe 4 is located between the bottom end of the first raw material conveying pipe 4 and the raw material weighing tank 6, a material accumulation layer will be formed in the first raw material conveying pipe 4 below the connection between the second raw material conveying pipe 7 and the first raw material conveying pipe 4 during the transmission of solid materials. The material accumulation layer has the same composition as the solid materials transmitted in the corresponding pipeline, and the Mohs hardness is basically the same. The material accumulation layer plays the role of an anti-wear layer, and compared with the role of a traditional anti-wear layer, it solves the technical problem that the traditional anti-wear layer is easy to fall off and difficult to repair after falling off, avoids the direct impact of solid materials on the corners of the pipeline during the transmission process, causing the pipeline to be aggravated, and improves the durability of the equipment.

[0027] The top of the first raw material delivery pipe 4 is fixedly connected to the bottom of the raw material tank 2, a first maintenance butterfly valve 19 is provided at the bottom of the top of the first raw material delivery pipe 4, a second maintenance butterfly valve 20 is provided at the top of the second raw material delivery pipe 7, the connection between the second raw material delivery pipe 7 and the first raw material delivery pipe 4 is located above the bottom of the first raw material delivery pipe 4, and the bottom of the second raw material delivery pipe 7 is fixedly connected to the top of the mixing tank 1. By providing the first maintenance butterfly valve 19 and the second maintenance butterfly valve 20, if the pipeline in the equipment is blocked due to an unexpected situation, the first maintenance butterfly valve 19 and the second maintenance butterfly valve 20 are opened to facilitate the blockage and dredging of the corresponding pipeline for easy maintenance; at the same time, if the whole or part of the solid raw material is not detected due to detection problems, The moisture content of the solid raw materials is too high, but in actual production, it is found that the moisture content of the solid raw materials is too high during the feeding process. The raw materials that have entered the raw material tank are not easy to be produced in the next step due to the high moisture content. The conventional solution is to directly enter the unqualified raw materials into the mixing tank 1 and then discharge them from the production device through the finished product tank 9. However, if the finished product tank 9 temporarily stores finished products, such operation steps are not suitable. The finished products temporarily stored in the finished product tank 9 need to be completely removed before the unqualified materials can be removed. Such steps are very cumbersome. This product can remove unqualified solid raw materials from the first inspection butterfly valve 19 by opening the first inspection butterfly valve 19. This product is convenient for controlling product quality, enhances the way to solve problems caused by sudden quality problems, and is also easy to operate.

[0028] The raw material tank 2 and the first raw material conveying pipe 4 are provided with a raw material conveying shaft 21, a raw material conveying motor 22 is provided on the top of the raw material tank 2, the output end of the raw material conveying motor 22 and the top end of the raw material conveying shaft 21 are fixedly connected by a coupling, a raw material conveying spiral blade 23 is provided on the raw material conveying shaft 21, and the raw material conveying spiral blade 23 is installed in the first raw material conveying pipe 4 above the first pneumatic butterfly valve 5. By arranging the raw material conveying motor 22, the raw material conveying shaft 21 and the raw material conveying spiral blade 23, it is convenient to control the speed of solid raw material conveying, and avoid the first pneumatic butterfly valve 5 and the raw material weighing tank 6 being impacted by the excessive flow rate of the solid raw material for a long time, which leads to a reduction in the service life of the first pneumatic butterfly valve 5 and the raw material weighing tank 6. At the same time, since the flow rate of the solid raw material is reduced, the raw material weighing tank 6 can be given sufficient stabilization time, so that the weighing is more accurate and it is convenient to improve the product quality.

[0029] The mixing tank 1 adopts a closed cylindrical box-shaped structure composed of a fixed part and a movable part. The movable part is installed below the fixed part. One end of the top of the movable part is hinged to the corresponding end of the fixed part, and the other end of the top of the movable part is movably connected to the fixed part. An auxiliary positioning piece 37 is provided on the outer wall of the other end of the top of the movable part. The auxiliary positioning piece 37 is provided to facilitate the convenient position positioning of the movable part and the fixed part when the state is switched; a finished product temporary storage bin 31 is provided below the mixing tank 1, and the top of the finished product temporary storage bin 31 and the outer wall of the fixed part are fixedly connected by welding. The movable part is located in the finished product temporary storage bin 31, and the bottom of the finished product temporary storage bin 31 adopts a prism-shaped tubular structure. A discharge control device is provided at the bottom of the movable part, and the finished product temporary storage bin 31 is connected to the input end of the bag filter 15 through a second dust extraction pipe 36. This arrangement is intended to solve the technical problem of slow discharge of the mixed material from the mixing tank 1 after the mixing is completed. The discharge control device directly controls the opening and closing of the movable part to achieve the switching of the stirring state and the discharging state, thereby solving the technical problem of switching the stirring state and the discharging state, achieving rapid discharging and improving production efficiency.

[0030] A first dust extraction and conveying pipe 24 is arranged below the dust outlet end of the bag-type dust collector 15, and a second dust extraction and conveying pipe 25 is arranged below the first dust extraction and conveying pipe 24. The dust outlet end of the bag-type dust collector 15 and the second dust extraction and conveying pipe 25 are respectively connected with the first dust extraction and conveying pipe 24, and a third pneumatic butterfly valve 27 and a dust extraction weighing tank 26 are arranged on the second dust extraction and conveying pipe 25 in sequence. A dust extraction and conveying shaft 28 is sleeved in the second dust extraction and conveying pipe 25, and a dust extraction and conveying spiral blade 29 is fixed on the dust extraction and conveying shaft 28. A dust extraction and conveying motor 30 is arranged outside the second dust extraction and conveying pipe 25, and the output end of the dust extraction and conveying motor 30 is fixedly connected to the end of the dust extraction and conveying spiral blade 29. Each solid component enters the mixing tank 1 after being weighed, and a certain amount of dust after weighing is added under the premise that the ratio of each component in the premixing chamber can be controlled within the qualified range, and enters the mixing tank 1 for stirring, thereby improving the utilization rate of the raw materials.

[0031] The discharging control device includes a pneumatic telescopic rod 32, which is arranged on the finished product temporary storage bin 31. A support frame 35 is fixedly arranged on the outer side of the finished product temporary storage bin 31. The cylinder body of the pneumatic telescopic rod 32 is hinged to the support frame 35. The output end of the pneumatic telescopic rod 32 is hinged to the bottom end of the movable part. A pneumatic telescopic rod through hole 33 is opened on the finished product temporary storage bin 31. The pneumatic telescopic rod 32 passes through the pneumatic telescopic rod through hole 33. A sealing rubber 34 is arranged on the outer side of the pneumatic telescopic rod through hole 33. The outer wall of the finished product temporary storage bin 31 and the pneumatic telescopic rod 32 are respectively fixedly connected to the pneumatic telescopic rod 32 by bonding. The sealing rubber 34 is arranged to reduce the release of dust to the outside during the material transfer process, thereby protecting the environment and the personal safety of the operator.

[0032] Example 1: Figure 1 , 2 As shown in Figures 3 and 4, first, solid raw materials are added to the raw material tank 2 through the feeding pipe 3. When the solid raw materials pass through the sieve plate 18 on the feeding pipe 3, large debris cannot pass through the sieve plate 18 and stays above the sieve plate 18. After the solid raw materials are added, the first pneumatic butterfly valve 5 is opened, and the raw material conveying motor 22 is opened at the same time. The raw material conveying motor 22 drives the raw material conveying shaft 21 to drive the raw material conveying spiral blade 23 to rotate to control the flow rate of the solid raw materials. The solid raw materials enter the raw material weighing tank 6 through the first raw material conveying pipe 4 for weighing. When the preset standard is reached, the first pneumatic butterfly valve 5 is closed and the raw material conveying motor 22 is closed at the same time. Then the bottom of the solid raw material weighing tank 6 is opened, and the weighed solid raw materials enter the mixing tank 1 through the first raw material conveying pipe 4 and the second raw material conveying pipe 7, and then the various auxiliary additives weighed are added through the auxiliary material feeding pipe 8.

[0033] Then turn on the mixing motor 12, which drives the mixing shaft 13 to rotate the mixing spiral blade 14 to stir the solid raw materials in the mixing tank 1 to form a finished mortar. After sufficient stirring, open the second pneumatic butterfly valve 11, and the finished mortar enters the finished material tank 9 through the finished material conveying pipe 10 and the second pneumatic butterfly valve 11 for temporary storage.

[0034] In addition, it is necessary to further explain that since the amount of dust extraction is not pre-set at the beginning and gradually increases with the growth of production time, the following steps are not steps that must be taken in every production process. Before the solid raw material is delivered to the raw material tank 2, the induced draft fan 17 needs to be turned on. The induced draft fan 17 drives the bag-type dust collector 15 to work, and the bag-type dust collector 15 can generate negative pressure in the raw material tank 2 through the first dust extraction pipe 16, thereby reducing dust and improving the delivery efficiency of the solid raw material. A sampling port (not marked in the figure) is correspondingly provided at the bottom of the bag-type dust collector 15. Since the provision of the sampling port (not marked in the figure) is a conventional setting in the field, this article Without going into too much detail again, the inspector detects the corresponding content of various components in the dust, calculates the corresponding setting parameters of the dust weighing tank 26 and pre-sets them, and then turns on the dust conveying motor 30 and the third pneumatic butterfly valve 27. The dust conveying motor 30 drives the dust conveying shaft 28 and then drives the dust conveying spiral blades 29 to rotate, thereby driving the dust from the first dust conveying pipe 24, into the second dust conveying pipe 25 and then into the dust weighing tank 26. When the dust weighing tank 26 reaches the preset value, the dust conveying motor 30 and the third pneumatic butterfly valve 27 are closed, and the bottom of the dust weighing tank 26 is opened at the same time, and the dust enters the mixing tank 1 through the second dust conveying pipe 25.

[0035] Through Example 1, the durability of the equipment is improved, and after a blockage occurs, it is easy to clean up. At the same time, the amount of dust generated when solid materials are added is reduced, and the utilization rate of raw materials is improved.

[0036] Example 2: Figure 5 , 6As shown in , 7 and 8 , compared with Example 1, the mixing tank 1 of this embodiment adopts a closed cylindrical box-shaped structure composed of a fixed part and a movable part, and a finished product temporary storage bin 31 is provided below the mixing tank 1 . In the stirring state, the fixed part and the movable part form a closed cylindrical box-shaped structure. After the solid raw material enters the mixing tank 1 composed of the fixed part and the movable part, the mixing motor 12 drives the mixing shaft 13 so that the mixing spiral blade 14 rotates to stir the solid raw material in the mixing tank 1 to form a finished mortar; the mixing tank 1 switches to the discharging state, and the movable part rotates downward under the drive of the pneumatic telescopic rod 32, and the finished mortar enters the finished product temporary storage bin 31 for temporary storage. When the finished mortar in the mixing tank 1 is discharged, the pneumatic telescopic rod 32 drives the movable part to move in the reverse direction, switches to the stirring state again, and performs a new round of stirring. At the same time, the second pneumatic butterfly valve 11 is opened, and the finished mortar enters the finished product tank 9 for temporary storage through the finished material conveying pipe 10 and the second pneumatic butterfly valve 11.

[0037] Through Example 2, the production efficiency in the production process is improved and the process flow is shortened.

[0038] The present invention is a dry-mix mortar production device that meets the needs of workers in the field of dry-mix mortar production, so that the present invention has broad market prospects.

Claims

1. A dry mortar production device, characterized in that: The invention comprises a mixing tank (1), wherein a plurality of raw material storage and weighing devices are arranged above the mixing tank (1), wherein the raw material storage and weighing devices comprise a raw material tank (2), wherein the raw material tank (2) is provided with a feeding pipe (3) and a first raw material conveying pipe (4), wherein the feeding pipe (3) and the first raw material conveying pipe (4) are respectively connected to the raw material tank (2), wherein the first raw material conveying pipe (4) is sequentially provided with a first pneumatic butterfly valve (5) and a raw material weighing tank (6), wherein the first raw material conveying pipe (4) and the mixing tank (1) are connected via a second raw material conveying pipe (7), wherein the second raw material conveying pipe (7) and the first raw material conveying pipe (4) are connected to each other. The angle between the pipes (4) is 30 to 60 degrees, the connection point between the second raw material conveying pipe (7) and the first raw material conveying pipe (4) is located between the bottom end of the first raw material conveying pipe (4) and the raw material weighing tank (6), a mixing device is provided on the mixing tank (1), an auxiliary material feeding pipe (8) is provided on the mixing tank (1), the auxiliary material feeding pipe (8) and the mixing tank (1) are connected, a finished material tank (9) is provided below the mixing tank (1), the finished material tank (9) and the mixing tank (1) are connected through a finished material conveying pipe (10), and a second pneumatic butterfly valve (11) is provided on the finished material conveying pipe (10); The mixing device comprises a mixing motor (12), a mixing shaft (13) is fixedly arranged on the output end of the mixing motor (12), the mixing shaft (13) is sleeved on the mixing tank (1), and a mixing spiral blade (14) is fixedly arranged on the mixing shaft (13); The first raw material delivery pipe (4) is vertically installed below the raw material tank (2), the top end of the first raw material delivery pipe (4) is fixedly connected to the bottom of the raw material tank (2), a first inspection butterfly valve (19) is provided at the bottom end of the top end of the first raw material delivery pipe (4), and a second inspection butterfly valve (20) is provided at the top end of the second raw material delivery pipe (7); The raw material tank (2) and the first raw material conveying pipe (4) are provided with a raw material conveying rotating shaft (21); a raw material conveying motor (22) is provided on the top of the raw material tank (2); the output end of the raw material conveying motor (22) is fixedly connected to the top end of the raw material conveying rotating shaft (21); a raw material conveying spiral blade (23) is fixedly provided on the raw material conveying rotating shaft (21); and the raw material conveying spiral blade (23) is installed in the first raw material conveying pipe (4) above the first pneumatic butterfly valve (5); The first raw material conveying pipe (4) is vertically installed below the raw material tank (2). Since the connection between the second raw material conveying pipe (7) and the first raw material conveying pipe (4) is located between the bottom end of the first raw material conveying pipe (4) and the raw material weighing tank (6), a material accumulation layer is formed in the first raw material conveying pipe (4) below the connection between the second raw material conveying pipe (7) and the first raw material conveying pipe (4) during the transmission process. The first pneumatic butterfly valve (5) is opened, and the raw material conveying motor (22) is turned on at the same time. The raw material conveying motor (22) drives the raw material conveying rotating shaft (21) to drive the raw material conveying spiral blade (23) to rotate, thereby controlling the flow rate of the solid raw material. The solid raw material enters the raw material weighing tank (6) through the first raw material conveying pipe (4) for weighing. When the preset standard is reached, the first pneumatic butterfly valve (5) is closed and the raw material conveying motor (22) is closed at the same time. Then, the bottom of the solid raw material weighing tank (6) is opened, and the weighed solid raw material enters the mixing tank (1) through the first raw material conveying pipe (4) and the second raw material conveying pipe (7).

2. The dry mortar production device according to claim 1, characterized in that: A bag dust collector (15) is provided on one side of the mixing tank (1), the raw material tank (2) is connected to the input end of the bag dust collector (15) through a first dust extraction pipe (16), and an induced draft fan (17) is provided on the bag dust collector (15).

3. The dry mortar production device according to claim 1, characterized in that: The feeding pipe (3) is vertically fixedly installed on the top of the mixing tank (1), and the top of the feeding pipe (3) adopts a bell-mouth structure, in which a sieve plate (18) is fixedly arranged.

4. The dry mortar production device according to claim 2, characterized in that: The mixing tank (1) adopts a closed cylindrical structure consisting of a fixed part and a movable part. The movable part is installed below the fixed part. One end of the top of the movable part is hinged to the corresponding end of the fixed part. The other end of the top of the movable part is movably connected to the fixed part. A finished product temporary storage bin (31) is arranged below the mixing tank (1). The top of the finished product temporary storage bin (31) and the outer wall of the fixed part are fixedly connected by welding. The movable part is located in the finished product temporary storage bin (31). The bottom of the finished product temporary storage bin (31) adopts a prism-shaped tubular structure. A discharge control device is arranged at the bottom of the movable part. The finished product temporary storage bin (31) is connected to the input end of the bag filter (15) through a second dust extraction pipe (36).

5. The dry mortar production device according to claim 2, characterized in that: A first dust extraction and conveying pipe (24) is arranged below the dust outlet end of the bag-type dust collector (15), and a second dust extraction and conveying pipe (25) is arranged below the first dust extraction and conveying pipe (24). The dust outlet end of the bag-type dust collector (15) and the second dust extraction and conveying pipe (25) are respectively connected to the first dust extraction and conveying pipe (24). A third pneumatic butterfly valve (27) and a dust extraction and weighing tank (26) are arranged in sequence on the second dust extraction and conveying pipe (25). A dust extraction and conveying shaft (28) is sheathed in the second dust extraction and conveying pipe (25), and a dust extraction and conveying spiral blade (29) is fixed on the dust extraction and conveying shaft (28). A dust extraction and conveying motor (30) is arranged outside the second dust extraction and conveying pipe (25), and the output end of the dust extraction and conveying motor (30) is fixedly connected to the end of the dust extraction and conveying spiral blade (29).

6. The dry mortar production device according to claim 4, characterized in that: The discharging control device comprises a pneumatic telescopic rod (32), which is arranged on a finished product temporary storage bin (31), a support frame (35) is fixedly arranged on the outer side of the finished product temporary storage bin (31), a cylinder body of the pneumatic telescopic rod (32) and the support frame (35) are hinged, an output end of the pneumatic telescopic rod (32) and the bottom end of the movable part are hinged, a pneumatic telescopic rod through hole (33) is opened on the finished product temporary storage bin (31), the pneumatic telescopic rod (32) passes through the pneumatic telescopic rod through hole (33), a sealing rubber (34) is arranged on the outer side of the pneumatic telescopic rod through hole (33), and the outer wall of the finished product temporary storage bin (31) and the pneumatic telescopic rod (32) are respectively fixedly connected to the pneumatic telescopic rod (32) by bonding.

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