Ingredient stirring equipment

Abstract

The utility model discloses ingredient stirring equipment, which belongs to the technical field of ingredient stirring and is mainly used for ingredient stirring of artificial boards. The utility model aims to solve the technical problem of providing ingredient stirring equipment. The ingredient stirring equipment comprises a feeding section, a storage section, a stirring section and a liquid storage tank, the feeding section comprises a feeding hopper, the storage section comprises a storage hopper, the stirring section comprises a stirring machine, a solid material weighing hopper and a liquid material weighing hopper, the weighing hoppers are arranged above the stirring machine, a discharging port of each weighing hopper is communicated with a feeding port of the stirring machine, and a valve is arranged at the discharging port of each weighing hopper; a first screw conveyer is arranged between the feeding hopper and the storage hopper, and a second screw conveyer is arranged between the storage hopper and the weighing hopper; the discharge port of the feeding hopper is lower than the feed port of the storage hopper, and the discharge port of the storage hopper is lower than the feed port of the weighing hopper. When the ingredient stirring equipment is used for stirring, flying dust can be prevented from being generated during feeding, the waiting time for adding the to-be-stirred ingredients again after the stirred ingredients are discharged is shortened, and the stirring efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batching and stirring, in particular to batching and stirring equipment. Background Art

[0002] Mixers are commonly used to mix cement, sand, various dry mortars and other materials to make them into a mixture or a machine with suitable consistency. Mixers are also often used to mix ingredients in the preparation process of artificial board ingredients, including but not limited to solid materials (such as magnesium oxide, wood powder, waste materials, etc.) and liquid materials (such as clean water, brine, pigments, etc.). When adding solid ingredients to the mixer, belts are usually used for transmission, which generates a large amount of dust and has a great impact on the surrounding environment. In addition, since the existing belt feeding method directly feeds solid materials into the mixer, when the mixer completes one batching and mixing and then adds new materials for mixing, the materials in the mixer need to be completely discharged, and then the solid raw materials are weighed according to the proportion, and finally conveyed by the belt. This operation mode requires a long waiting time and cannot efficiently complete the mixing of ingredients. Moreover, the weighed raw materials will stick to the belt when transported by the belt, resulting in a certain amount of material loss. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a batching and mixing device, which is mainly used for mixing the ingredients of artificial boards, can avoid the generation of dust when loading materials, and at the same time reduce the waiting time between unloading the mixed ingredients and re-adding the ingredients to be mixed, thereby improving the mixing efficiency of the entire mixing device.

[0004] The utility model discloses a batching and mixing device, comprising a feeding section, a storage section, a mixing section and a liquid storage tank which are arranged in sequence; the liquid storage tank is arranged on one side of the mixing section, the feeding section comprises a feeding hopper, the storage section comprises a storage hopper, the mixing section comprises a mixer, a solid material weighing hopper and a liquid material weighing hopper, the solid material weighing hopper and the liquid material weighing hopper are both arranged above the mixer, the discharge port of the solid material weighing hopper and the discharge port of the liquid material are connected to the feed port of the mixer, the solid material weighing hopper is connected to the feed port of the mixer, and the solid material weighing hopper is connected to the feed port of the mixer. Valves are provided at the discharge port of the solid material weighing hopper and the discharge port of the liquid material; a first screw conveyor is provided between the discharge port of the upper hopper and the feed port of the storage hopper, a second screw conveyor is provided between the discharge port of the storage hopper and the feed port of the solid material weighing hopper, the feed port of the liquid material weighing hopper is connected with the discharge port of the liquid storage tank, and a water pump is provided at the discharge port of the liquid storage tank; the discharge port of the upper hopper is lower than the feed port of the storage hopper, and the discharge port of the storage hopper is lower than the feed port of the solid material weighing hopper.

[0005] Furthermore, a booster pump is provided at the connection between the discharge port of the liquid material weighing hopper and the feed port of the mixer.

[0006] Furthermore, the first screw conveyor and the second screw conveyor each include a conveyor housing, a rotating shaft, spiral blades and a driving device, the driving device being arranged at the feed end of the conveyor housing, and the driving device being transmission-connected to one end of the rotating shaft, the rotating shaft being rotatably arranged in the conveyor housing along the length direction of the rotating shaft, the spiral blades being arranged on the rotating shaft with variable pitches along the length direction of the rotating shaft, the pitch of the spiral blade at one end close to the driving device being smaller than the pitch at the end away from the driving device, and a reverse blade is provided at the end of the rotating shaft away from the driving device.

[0007] Furthermore, an iron remover is provided at the connection between the first screw conveyor and the discharge port of the upper hopper.

[0008] Furthermore, spark detectors are provided at the outlets of the first screw conveyor and the second screw conveyor.

[0009] Furthermore, the mixer is a planetary mixer, and a mixer discharge hopper is provided on one side of the bottom of the mixer, and a mixer cleaning discharge trough is provided on the other side.

[0010] Furthermore, it also includes a dust collector, which is arranged above the storage hopper and the mixer.

[0011] Furthermore, the feeding section further comprises a vibrating screen, and the vibrating screen is arranged above the feeding port of the upper hopper, the upper hopper is located under the ground, and the vibrating screen is located above the ground.

[0012] As a preferred embodiment, a dust cover is further provided on the outer side of the vibrating screen, and the dust cover is opened on one side away from the material storage section, and a sealing door curtain is provided at the opening.

[0013] Furthermore, the stirring section includes at least two stirrers, and each of the stirrers is provided with a corresponding solid material weighing hopper and a liquid material weighing hopper.

[0014] The beneficial effects of the utility model are as follows: by sequentially arranging the feeding section, the storage section and the mixing section, the entire mixing equipment is divided into three stages, and the three stages can not interfere with each other, so that each stage of the equipment can work independently or work together, and by setting a weighing bucket, a temporary storage point is provided for the material while weighing, so that the material can be dumped into the mixer all at once, saving the time for gradual feeding, feeding first and then weighing and feeding can effectively reduce material loss; at the same time, when the mixer is working, the valve is closed, and the feeding section and the storage section can continue to feed the weighing bucket during this period , until the next discharge index is reached, and the working time difference of the mixer is used to complete the screening, transportation, storage and weighing of the materials. When the unloading in the mixer is completed, the materials can be directly unloaded to start a new round of ingredient mixing, which saves a lot of time and improves the mixing efficiency. It can also control the separate activation of equipment in each stage to save energy. At the same time, the closed screw conveyor is used to avoid dust caused by solid materials during transportation, affecting the surrounding working environment, and can mix the solid materials to avoid caking during transportation, which affects the quality of the subsequent ingredients. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : A schematic diagram of the structure of the batching and mixing equipment provided by the utility model;

[0016] Figure 2 : A top view of the batching and mixing device provided by the utility model;

[0017] Figure 3 : Schematic diagram of the structure of the first screw conveyor or the second screw conveyor.

[0018] Figure numerals: 1-feeding section; 11-feeding hopper; 111-discharging port of the feeder hopper; 112-feeding port of the feeder hopper; 11a-magnesium oxide feeder hopper; 11b-waste feeder hopper; 11c-wood powder feeder hopper; 12-vibrating screen; 13-dust cover; 131-sealed door curtain; 132-strip sealing port; 14-iron remover; 15-dust remover with exhaust fan; 2-first screw conveyor; 21-conveyor housing; 22-rotating shaft; 23-spiral blade; 24-driving device; 25-reverse blade; 3-storage section; 31-storage hopper; 31a-magnesium oxide feeder hopper; 31b-waste feeder hopper; 31c-wood powder feeder hopper; 311-discharging port of the feeder hopper 312-feeding port of storage hopper; 4-second screw conveyor; 41-spark detector; 5-mixing section; 51-mixer; 511-mixer discharge hopper; 512-mixer cleaning discharge chute; 52-solid material weighing hopper; 521-feeding port of solid material weighing hopper; 522-discharging port of solid material weighing hopper; 53-liquid material weighing hopper; 531-feeding port of liquid material weighing hopper; 532-discharging port of liquid material weighing hopper; 54-valve; 55-boosting pump; 6-liquid storage tank; 61-clean water storage tank; 62-brine storage tank; 63-pigment storage tank; 64-stirring device; 7-flameless explosion relief device; 8-dust collector. DETAILED DESCRIPTION

[0019] The utility model is further described below.

[0020] The utility model provides a batching and mixing device, which is mainly used for batching and mixing of artificial boards, and comprises a feeding section 1, a storage section 3, a mixing section 5 and a liquid storage tank 6 which are arranged in sequence; the liquid storage tank 6 is arranged on one side of the mixing section, the feeding section 1 comprises a feeding hopper 11, the storage section 3 comprises a storage hopper 31, the mixing section 5 comprises a mixer 51, a solid material weighing hopper 52 and a liquid material weighing hopper 53, the solid material weighing hopper 52 and the liquid material weighing hopper 53 are multiple and are arranged above the mixer 51, and the discharge port 522 of each solid material weighing hopper and the discharge port 532 of each liquid material weighing hopper are connected to the mixer 51. The feed port of the mixer 51 is connected, and valves 54 are provided at the discharge port 522 of the solid material weighing hopper and the discharge port 532 of the liquid material; a first screw conveyor 2 is provided between the discharge port 111 of the upper hopper and the feed port 312 of the storage hopper, a second screw conveyor 4 is provided between the discharge port 311 of the storage hopper and the feed port 521 of the solid material weighing hopper, and the feed port 531 of the liquid material weighing hopper is connected to the liquid storage tank 6; the discharge port 111 of the upper hopper is lower than the feed port 312 of the storage hopper, and the discharge port 311 of the storage hopper is lower than the feed port 521 of the solid material weighing hopper.

[0021] like Figure 1 or Figure 2As shown, there are multiple upper hoppers 11 and storage hoppers 31, and the specific number of arrangements is determined by the type of solid materials required in the artificial board ingredients. A first screw conveyor 2 for transporting materials is arranged between the upper hopper 11 and the storage hopper 31 for holding the same type of solid materials. Such an arrangement can independently control the start and stop of each conveying channel, so that the conveying of each material will not be affected by the transportation of other materials; there are also multiple solid material weighing hoppers 52 and liquid material weighing hoppers 53 above the mixer 51, and the discharge port 522 of the solid material weighing hopper and the discharge port 532 of the liquid material weighing hopper are connected to the mixer 51. The feed port of the mixer 51 is connected, and the specific number of the solid material weighing hopper 52 and the liquid material weighing hopper 53 is determined by the type of material to be added to the mixer 51. The solid material weighing hopper 52 is connected to the storage hopper 31 through the second screw conveyor 4, and the liquid material weighing hopper 53 is connected to the liquid storage tank 6 through an existing conveying pipeline such as a hose or a water pipe. Since the discharge port of the liquid storage tank 6 is lower than the feed port 531 of the liquid material weighing hopper, a water pump can be set at the discharge port of the liquid storage tank 6 to facilitate the transportation of the liquid material. The start and stop of the water pump is controlled by a controller, and the controller is connected to a controller set at the liquid The sensor on the solid material weighing hopper 53 is electrically connected, and the controller controls the start and stop of the water pump according to the weight signal collected by the sensor; the storage hopper 31 is set at a position higher than the upper hopper 11 through the existing frame, and the mixer 51 and the solid material weighing hopper 52 are set at a position higher than the storage hopper 31, so that the discharge port 111 of the upper hopper is set at a position lower than the feed port 312 of the storage hopper, and the discharge port 311 of the storage hopper is set at a position lower than the feed port 521 of the solid material weighing hopper. In this way, the upper hopper 11, the storage hopper 31, the mixer 51 and the solid material weighing hopper 52 are set. , which can shorten the installation length of the first screw conveyor 2 and the second screw conveyor 4 for transporting materials, reduce the equipment footprint, lower the equipment installation height, and reduce the power required for transporting materials, saving energy; at the same time, a sensor is provided on the solid material weighing hopper 52 to collect weight signals and monitor the material weight, and then the controller electrically connected to the sensor controls the start and stop of the second screw conveyor 4. An independent second screw conveyor 4 is provided between each weighing hopper 52 and the storage hopper 31, so that the transportation of each material will not be affected by the transportation of other materials, and can be independently controlled to carry out material allocation;A weighing hopper 52 is arranged above the mixer 51, and the material is first added into the weighing hopper 52. While being weighed, an intermediate storage purpose can also be achieved, that is, when the mixer 51 is mixing the material, the second screw conveyor 4 continues to transport the material to the solid material weighing hopper 52, and the liquid storage tank 6 continues to transport the material to the liquid material weighing hopper 53. The material of corresponding weight is stored in the solid material weighing hopper 52 and the liquid material weighing hopper 53 in advance. When the material in the mixer 51 that has been mixed is unloaded through the mixer unloading hopper 511, the valve 54 can be opened to directly pour the material in the solid material weighing hopper 52 and the liquid material weighing hopper 53 into the mixer 51, thereby saving the feeding time and improving the mixing efficiency. By sequentially arranging the feeding hopper 11, the storage hopper 31, and the mixer 51, the entire mixing equipment is divided into It is divided into three stages, and the three stages can not interfere with each other. When the mixing section 5 is not needed, only the feeding section 1 and the storage section 3 can be opened to screen and store the materials; when the storage section 3 stores enough screened solid materials, only the storage section 3 and the mixing section 5 can be opened to mix the materials; through the segmented setting, each stage of the equipment can work independently or work together, which can not only save the time of the mixer idling when waiting for material screening and improve work efficiency, but also stop the feeding section and the storage section when the mixing section is working to save energy; at the same time, the closed screw conveyor is used to avoid dust caused by solid materials during transportation and affect the surrounding working environment. At the same time, the solid materials can be mixed to avoid agglomeration during transportation, which affects the quality of the ingredients produced later. ;

[0022] like Figure 2As shown, taking the solid materials required for the artificial board as magnesium oxide, wood powder, and waste, and the required liquid materials including clean water, brine, and pigment as an example, it is noted that the types of the above-mentioned solid materials and liquid materials can be changed according to the actual required materials; the upper hopper 11 includes a magnesium oxide upper hopper 11a, a waste material upper hopper 11b, and a wood powder upper hopper 11c, the storage hopper 31 includes a magnesium oxide storage hopper 31a, a waste material storage hopper 31b, and a wood powder storage hopper 31c, the liquid storage tank 6 includes a clean water storage tank 61, a brine storage tank 62, and a pigment storage tank 63, the number of solid material weighing hoppers 52 is 3 and is adapted to the types of solid materials transported in the loading section 1 and the storage section 3, and is used to respectively hold and weigh magnesium oxide, wood powder, and waste; the liquid material weighing hopper 52 is 3, and the solid ... The number of hoppers 53 is 2, which is compatible with the type of liquid material stored in the liquid storage tank 6 set aside, and is used to hold a mixture of clean water and pigment and brine respectively; the magnesium oxide upper hopper 11a and the magnesium oxide storage hopper 31a are connected by a first screw conveyor 2, the waste upper hopper 11b and the waste storage hopper 31b are connected by a first screw conveyor 2, the wood powder upper hopper 11c and the wood powder storage hopper 31c are connected by a first screw conveyor 2, the magnesium oxide storage hopper 31a, the waste storage hopper 31b, and the wood powder storage hopper 31c are respectively connected to the solid weighing hopper 52 set above the mixer 51 through a second screw conveyor 4, and the liquid storage tank 6 is placed in the mixing section. 5, and the liquid storage tank 6 is connected to the liquid weighing hopper 53 through a liquid conveying pipe (not shown in the figure); a waste upper hopper 11b and a waste storage hopper 31b are set to hold the unused or processed waste in the previous manufacture of artificial boards for reuse, so as to achieve the purpose of saving costs; each type of solid material is transported by a separately set first screw conveyor 2, and each type of liquid material is also transported by a separately set liquid conveying pipe, so that the transportation of each material will not be affected by the other transportation channels, and the material can be controlled to be continuously transported or intermittently transported according to needs; a second screw conveyor 4 is provided between each storage hopper 31 and the solid material weighing hopper 52 to transport various materials to Each material is put into the corresponding solid material weighing hopper 52, weighed and then put into the mixer 51. In addition, the liquid material weighing hopper 53 and the solid material weighing hopper 52 are used separately and cannot affect each other. During use, the solid material is initially screened by the feeding section 1, transported to the storage hopper 31 for temporary storage via the first screw conveyor 2, and then transported to the solid material weighing hopper 52 for weighing via the second screw conveyor 4. The liquid material is directly transported to the liquid material weighing hopper 53 via the liquid storage tank 6 for weighing. When the index is reached, the valve 54 is opened, and the material is dumped into the mixer 51 all at once, which saves the time of gradual material discharge and can avoid material loss when transporting materials through the conveyor belt.When the mixer is working, close the valve 54, and the second screw conveyor 4 can continue to feed the solid material weighing hopper 52 during this period until the next discharge index is reached. The working time difference of the mixer 51 is used to complete the screening, transportation, storage and weighing of the materials. After the unloading in the mixer 51 is completed, the materials can be directly unloaded to start a new round of mixing and mixing, which saves a lot of time, improves the mixing efficiency, and can also control the separate activation of each stage of the equipment to save energy; since wood powder and other materials are flammable materials, in order to improve the safe use of the equipment, the upper hopper 11, the storage hopper 31, and the solid weighing hopper 524 for holding wood powder and other materials can be equipped with a flameless explosion relief device 7 to release the explosion pressure and block the flame from spreading outward to prevent secondary or multiple explosions, thereby protecting the safety of the equipment and surrounding personnel. ;

[0023] In order to make it easier for the liquid material to be evenly sprayed in the mixer, Figure 1 As shown, a booster pump 55 is also provided at the connection between the discharge port 532 of the liquid material weighing hopper and the feed port of the mixer 51. The liquid is pressurized by the booster pump 55, and the liquid material is atomized and sprayed into the mixer 51 through the annular water spray pipe and nozzle of the mixer 51, so that the material is stirred more evenly. In addition, multiple groups of water spray pipes are used, and the water spray pipes for clean water and pigments are separated from the brine spray pipes, so that the spraying does not interfere with each other; in addition, since brine and pigments in the liquid material are prone to precipitation, in order to prevent liquid precipitation, Figure 1 As shown, a stirring device 64 is installed in the liquid storage tank 6, and the stirring device can adopt an existing liquid stirrer composed of a stirring shaft, a motor, a stirring blade and other components.

[0024] In order to facilitate the transportation of solid materials such as magnesium oxide or wood powder along the conveying direction of the first screw conveyor 2 and the second screw conveyor 4 to the solid material weighing bucket 52, as shown in FIG. Figure 3 As shown, the first screw conveyor 2 and the second screw conveyor 4 both include a conveyor housing 21, a rotating shaft 22, a spiral blade 23 and a driving device 24, wherein the driving device 24 is arranged at the feeding end of the conveyor housing 21, and the driving device 24 is transmission-connected with one end of the rotating shaft 22, the rotating shaft 22 is rotatably arranged in the conveyor housing 21 along the length direction of the conveyor housing 21, the spiral blade 23 is arranged on the rotating shaft 22 with a variable pitch along the length direction of the rotating shaft 22, the pitch of the end of the spiral blade 23 close to the driving device 24 is smaller than the pitch of the end away from the driving device 24, and the end of the rotating shaft 22 away from the driving device 24 is provided with a reverse blade 25; Figure 1 and Figure 3It can be seen that the pitch of the spiral blade 23 gradually increases from the low end to the high end of the screw conveyor. The larger the pitch, the greater the conveying volume and the smoother the conveying, so that the solid material can be transported quickly, and the variable pitch spiral blade can be used to stir the solid material once to avoid its agglomeration and clogging. At the same time, a reverse blade 25 is provided at the end of the rotating shaft 22 away from the driving device 24, that is, a reverse blade 25 is provided at the discharge end of the screw conveyor to prevent the material from accumulating between the outlet and the top of the screw conveyor.

[0025] In order to prevent foreign objects such as iron nails and iron blocks from entering the mixer 51 and affecting the quality of the artificial board, an iron remover 14 is provided at the connection between the first screw conveyor 2 and the discharge port 111 of the upper hopper.

[0026] In order to improve the safety performance of the equipment, spark detectors 41 are provided at the outlets of the first screw conveyor 2 and the second screw conveyor 4 to detect whether flames are generated in the material in the equipment and to give an alarm in time to avoid the occurrence of safety accidents.

[0027] In order to ensure the material mixing effect, the mixer 51 is a planetary mixer, and a mixer discharge hopper 511 is provided on one side of the bottom of the mixer 51, and a mixer cleaning discharge trough 512 is provided on the other side; the planetary mixer can adopt the existing planetary mixer structure, or the planetary mixer structure or vertical axis planetary mixer provided in CN206982992U, so that there are two or three multi-layer paddle stirrers and 1 to 2 automatic scrapers in the mixer kettle, and the stirrer revolves around the axis of the kettle body while rotating at high speed around its own axis at different speeds, so that the material moves in a complex manner in the kettle body, and can obtain three-dimensional, multi-angle shearing, flipping, mixing It is uniform and efficient, and can also scrape off the materials adhering to the inner wall of the kettle to avoid waste; by arranging two discharge doors at the bottom of the mixer 51, one discharge door is connected to the mixer discharge hopper 511, and the other discharge door is connected to the mixer cleaning discharge trough 512, so that the mixer discharge hopper 511 used for feeding the production line and the mixer cleaning discharge trough 512 used for discharging cleaning materials will not affect each other; in order to facilitate the uniform lowering of liquid materials, the mixer 51 is equipped with multiple groups of water spray pipes and nozzles corresponding to the liquid weighing bucket 53, and each group of water spray pipes sprays separately, and the spraying does not interfere with each other, and its spraying range can cover the inner cavity of the mixer 51.

[0028] In order to ensure that the storage hopper 31 and the mixer 51 are ventilated during use and prevent internal dust from being blown out, the batching and mixing equipment also includes a dust collector, which is arranged above the storage hopper 31 and the mixer 51; Figure 1 and Figure 2 As shown, there are multiple dust collectors and they are arranged above each storage hopper 31 and above the mixer 51.

[0029] In order to make the artificial board ingredients more uniform, the solid raw materials can be screened before stirring, such as Figure 1 or Figure 2 As shown, the feeding section 1 also includes a vibrating screen 12, which is arranged above the feeding port 112 of the upper hopper, the upper hopper 11 is located under the ground, and the vibrating screen 12 is located on the ground; by setting the vibrating screen 12, the solid material added to the upper hopper 11 is screened, and the solid material with a suitable particle size is screened out, and its particle size is controlled within a certain range, so as to ensure the quality of the artificial board ingredients, make the proportion uniform, and ensure that the texture of the artificial board produced later is uniform. The upper hopper 11 is arranged below the ground, which is convenient for the subsequent setting of the storage section 3 and the mixing section 5, avoiding the storage hopper 31 of the storage section 3 and the mixer 51 of the mixing section 5 being set too high, which poses a safety hazard, and can reduce the installation space occupied by the first screw conveyor 2 used to connect the storage section 3 and the feeding section 1, reduce equipment costs, and reduce the power required for the first screw conveyor 2 to transport materials. At the same time, the upper hopper 11 is arranged below the ground, which can reduce the generation of dust, and the vibrating screen 12 is arranged on the ground to facilitate the lowering of materials.

[0030] In order to prevent the dust generated by the vibrating screen 12 during screening in the feeding section 1 from affecting the surrounding working environment, Figure 1 As shown, a dust cover 13 is further provided on the outside of the vibrating screen 12, and the dust cover 13 is opened on one side away from the material storage section 3, and a sealing door curtain 131 is provided at the opening; the dust cover 13 is provided on the outside of the vibrating screen 12 to effectively control dust when the material is vibrated and screened; the dust cover 13 can be made of a steel plate, and in order to facilitate real-time monitoring of the use of the vibrating screen 12 and ensure its normal operation, the dust cover 13 is made of a transparent material, and specifically can be made of a transparent acrylic plate or glass, in order to avoid the dust inside the dust cover 13 being too large to be observed, such as Figure 1 or Figure 2 As shown, a dust collector 15 with an exhaust fan is provided above the dust cover 13 to prevent dust inside the cover from flying out and to clean the dust inside the cover; one side of the dust cover 13 is opened and a sealing door curtain 131 is provided at the opening to facilitate operators to use forklifts or bucket trucks to lower materials without causing dust to fly out; if it is necessary to lower the materials by hoisting, it is convenient for the hoisting rope to enter, as shown in FIG. Figure 2 As shown, a strip-shaped sealing opening 132 is provided at the top of the dust cover 13 for the passage of a lifting rope, so that the material can be hoisted into the dust cover 13 and dust in the dust cover 13 can be prevented from being blown out.

[0031] In order to improve the mixing efficiency, the mixing section 5 includes at least two mixers 51, each of which is provided with a corresponding solid material weighing hopper 52 and a liquid material weighing hopper 53; a second screw conveyor 4 is provided between each solid material weighing hopper 52 and the storage hopper 31; by setting up multiple mixers 51, when one mixer 51 needs to be shut down for maintenance, it will not affect the normal use of other mixers 51, thereby ensuring the normal operation of the batching and mixing equipment and the mixing efficiency.

[0032] In order to improve the safety of the equipment, the motors used in the equipment, such as the drive device of the screw conveyor, the drive device of the mixer or the stirring drive device installed on the liquid storage tank, are all explosion-proof motors.

Claims

1. A batching and mixing device, characterized in that: The invention comprises a feeding section (1), a storage section (3), a stirring section (5) and a liquid storage tank (6) which are arranged in sequence; the liquid storage tank (6) is arranged on one side of the stirring section (5); the feeding section (1) comprises a feeding hopper (11); the storage section (3) comprises a storage hopper (31); the stirring section comprises a stirring machine (51), a solid material weighing hopper (52) and a liquid material weighing hopper (53); the solid material weighing hopper (52) and the liquid material weighing hopper (53) are both arranged above the stirring machine (51); the discharge port (522) of the solid material weighing hopper and the discharge port (532) of the liquid material weighing hopper are connected to the feed port of the stirring machine (51); the discharge port of the solid material weighing hopper is A valve (54) is provided at the outlet (522) of the upper hopper and the outlet (532) of the liquid material weighing hopper; a first screw conveyor (2) is provided between the outlet (111) of the upper hopper and the inlet (312) of the storage hopper, a second screw conveyor (4) is provided between the outlet (311) of the storage hopper and the inlet (521) of the solid material weighing hopper, the inlet (531) of the liquid material weighing hopper is connected to the outlet of the liquid storage tank (6), and a water pump is provided at the outlet of the liquid storage tank (6); the outlet (111) of the upper hopper is lower than the inlet (312) of the storage hopper, and the outlet (311) of the storage hopper is lower than the inlet (521) of the solid material weighing hopper.

2. A batching and mixing device according to claim 1, characterized in that: A booster pump (55) is also provided at the connection between the discharge port (532) of the liquid material weighing hopper and the feed port of the mixer (51).

3. A batching and mixing device as claimed in claim 1, characterized in that: The first screw conveyor (2) and the second screw conveyor (4) both comprise a conveyor housing (21), a rotating shaft (22), a spiral blade (23) and a driving device (24); the driving device (24) is arranged at the feed end of the conveyor housing (21), and the driving device (24) is transmission-connected to one end of the rotating shaft (22); the rotating shaft (22) is rotatably arranged in the conveyor housing (21) along the length direction of the conveyor housing (21); the spiral blade (23) is arranged on the rotating shaft (22) with a variable pitch along the length direction of the rotating shaft (22); the spiral pitch of the spiral blade (23) at one end close to the driving device (24) is smaller than the spiral pitch at one end away from the driving device (24); and a reverse blade (25) is provided at one end of the rotating shaft (22) away from the driving device (24).

4. A batching and mixing device as claimed in claim 1, characterized in that: An iron remover (14) is provided at the connection between the first screw conveyor (2) and the discharge port (111) of the upper hopper.

5. A batching and mixing device as claimed in claim 1, characterized in that: Spark detectors (41) are provided at the outlets of the first screw conveyor (2) and the second screw conveyor (4).

6. A batching and mixing device according to claim 1, characterized in that: The mixer (51) is a planetary mixer. A mixer discharge hopper (511) is provided on one side of the bottom of the mixer (51), and a mixer cleaning discharge trough (512) is provided on the other side.

7. A batching and mixing device according to claim 1, characterized in that: The invention also comprises a dust collector (8), wherein the dust collector (8) is arranged above the storage hopper (31) and the mixer (51).

8. The batching and mixing device according to claim 1, characterized in that: The feeding section (1) further comprises a vibrating screen (12), wherein the vibrating screen (12) is arranged above a feeding port (112) of the feeding hopper; the feeding hopper (11) is located below the ground, and the vibrating screen (12) is located above the ground.

9. A batching and mixing device as claimed in claim 8, characterized in that: A dust cover (13) is also provided on the outside of the vibrating screen (12), and the dust cover (13) is opened on one side away from the material storage section (3), and a sealing door curtain (131) is provided at the opening.

10. A batching and mixing device according to any one of claims 1 to 9, characterized in that: The stirring section comprises at least two stirrers (51), and each of the stirrers (51) is provided with a corresponding solid material weighing hopper (52) and a liquid material weighing hopper (53).

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