Preparation process of dolomite mortar

Abstract

The invention discloses a dolomite mortar preparation process and special stirring equipment, the process comprises the steps of dolomite modification, raw material dry mixing and water adding wet mixing, the core of the process is that the special stirring equipment is adopted, the equipment is provided with a shaft rod set and stirring assemblies A, B and C. The stirring assembly A is intermittently meshed with interval teeth of a fixed tooth piece through a gear A, and the stirring assembly B is meshed with the shaft rod set through a gear B; the stirring rod B is driven by water pressure to stretch and rotate, so that intelligent switching of'directional 'and'disordered' stirring is realized, raw material agglomeration is efficiently broken, and during wet stirring, the same water supply system drives the stirring rod B to stretch out and synchronously sprays water from the end of the stirring rod B, so that'stirring and water adding 'is realized, local over-wet is avoided, and a blade plate of the stirring assembly B can radially stretch out and revolve and rotate; a three-dimensional composite stirring flow field is formed in cooperation with a scraper at the bottom of the stirring assembly C, mixing dead corners are eliminated, the mixing uniformity and efficiency are remarkably improved, and the excellent performance and stability of mortar products are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of building material preparation technology, and in particular to a process for preparing dolomite mortar. Background Technology

[0002] Mortar, as an indispensable basic material in construction engineering, directly affects the overall quality and durability of the project. Dolomite, as a widely available and inexpensive mineral raw material, can be processed into powder and applied to mortar. This not only reduces production costs but also improves certain physical properties of the mortar. Therefore, developing a high-performance dolomite mortar preparation process has significant economic and environmental value.

[0003] Commonly available dolomite mortar ingredients typically include cement, dolomite sand (or dolomite powder), quartz sand, water, and common additives such as water-reducing agents and water-retaining thickeners. The following shortcomings exist: the strength improvement is limited, especially the long-term strength stability is insufficient, making it difficult to meet the requirements in some building scenarios with high strength requirements; It has poor fluidity, making construction difficult; it has poor water retention, making it prone to stratification and bleeding, which affects construction quality and mortar performance. It has weak resistance to seepage, freezing, and erosion, and its service life is relatively short in harsh environments (such as rainy, cold, or chemically corrosive environments). Some of the additives used are expensive and not environmentally friendly enough in the production process, which does not meet the requirements for the development of green buildings.

[0004] Currently, traditional dolomite mortar preparation often uses conventional mechanical mixing equipment to mix common dolomite mortar ingredients on the market. These devices typically consist of a mixing shaft and fixed mixing blades, and the materials are mixed by motor drive. The preparation process generally involves first putting dry powder materials such as cement, dolomite powder, and additives into the mixer for dry mixing, and then adding a certain amount of water at once or in batches for wet mixing until the mixture is uniform.

[0005] However, this traditional preparation process and equipment have gradually revealed many shortcomings in practical applications: First, it is difficult to guarantee the uniformity of mixing. The flow field inside a conventional mixer is relatively fixed, which can easily create mixing dead zones and cause powder agglomeration. In particular, it is difficult to achieve uniform micro-dispersion of powders with large density differences (such as cement and fly ash). This directly affects the homogeneity and stability of the finished mortar, resulting in large fluctuations in its mechanical properties. Secondly, the wet mixing process is inefficient and prone to quality problems. The traditional water injection method is to inject water from the top of the mixing barrel. The water flow is difficult to contact with the high-speed rotating dry powder immediately, which can easily cause local over-wetting and form clumps, while other areas may still be in a dry state. This not only prolongs the required wet mixing time and reduces production efficiency, but also the resulting clumps can seriously affect the workability of the mortar (such as fluidity, water retention) and the strength of the final hardened body. Furthermore, the device has a single function and low automation level. The dry mixing and wet mixing stages need to rely on manual judgment and operation switching. The shape and motion mode of the stirring blade are fixed and cannot be self-adapted according to the needs of the process stage. The stirring effect of the whole process highly depends on the experience of the operator, and it is difficult to ensure the stability of the product quality between batches.

[0006] Therefore, there is an urgent need in the art for a new dolomite mortar preparation process and special equipment that can realize efficient and uniform mixing and intelligently integrate the water injection process with the stirring action to overcome the above-mentioned deficiencies of the prior art. SUMMARY

[0007] The purpose of the present application is to solve the problems existing in the prior art and provide a dolomite mortar preparation process.

[0008] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: A dolomite mortar preparation process, comprising the following steps: S1, modification treatment of dolomite; S11, crushing dolomite and then grinding it into dolomite powder with a grinding machine; S12, preparing the following raw materials: cement, dolomite powder, fly ash, high-efficiency water reducing agent, water retention thickening agent, air entraining agent, modifier, and water; S2, dry mixing and treatment of raw materials; S21, sequentially adding cement, modified dolomite powder, fly ash, high-efficiency water reducing agent, water retention thickening agent, air entraining agent, and modifier into a stirring device to mix the raw materials evenly; The stirring device comprises a mixing barrel 7, a shaft rod group is arranged in the mixing barrel 7, and a stirring assembly A and a stirring assembly B 3 are arranged on the shaft rod group; The shaft rod group comprises a shaft cylinder A, a shaft cylinder B is arranged to penetrate the shaft cylinder A, a water cavity is arranged between the inner wall of the shaft cylinder A and the outer wall of the shaft cylinder B, a fixed tooth piece 3 is arranged in the shaft cylinder B, a water injection piece 8 is arranged outside the shaft cylinder B and is sleeved on the top of the shaft cylinder A, the shaft cylinder A and the shaft cylinder B are rotatably connected with the water injection piece 8 through a sealing bearing, and a transmission assembly 6 is arranged outside the shaft cylinder A; The stirring assembly A comprises a stirring rod A connected outside the shaft cylinder A, and the stirring rod A is internally provided with an axis hole, a containing cavity A and a containing cavity B3 which are connected and keep the same horizontal axis, the axis hole is provided with a rotating shaft 3, and the two ends of the rotating shaft 3 are respectively provided with a gear A3 and a transmission head 3, the containing cavity A and the containing cavity B3 are provided with a reset spring A4 and a stirring rod B which are connected, the reset spring A4 is sleeved on the rotating shaft 3, and the two ends of the reset spring A4 are respectively rotationally connected at the opposite end positions of the containing cavity A and the stirring rod B, one end of the stirring rod A is rotationally connected with a movable end head 5, the other end of the stirring rod A is provided with a plurality of water holes B4 which are distributed in a circle and take the axis hole as the center, and the water holes B4 are communicated to the containing cavity A, the shaft cylinder A is provided with a water hole A which is communicated with the water hole B4, one end of the stirring rod A away from the reset spring A4 is movably inserted into the movable end head 5, the stirring rod B is externally provided with a convex edge which is located in the containing cavity B3, the stirring rod B is internally provided with a transmission cavity which is internally provided with a clamping groove at one end and is matched with the transmission head 3, the part of the rotating shaft 3 with the transmission head 3 is located in the transmission cavity, and one end of the rotating shaft 3 with the gear A3 penetrates through the shaft cylinder A and the shaft cylinder B, the fixed tooth part 3 comprises a plurality of column bodies 3 which are arranged from top to bottom in the shaft cylinder B, and the column bodies 3 are provided with interval teeth 3 at the positions close to the edges at the top, the gear A3 is engaged with the interval teeth 3, the adjacent column bodies 3 are connected through the same connecting shaft 3 which penetrates through, the connecting shaft 3 penetrates through the shaft cylinder B at the top and is connected with a locking disc 33, and the locking disc 33 is connected at the top of the mixing barrel 7. The stirring assembly B3 comprises two stirring cylinders 3 which are connected on the shaft cylinder A, and the two stirring cylinders 3 are all provided with displacement rods 3 which are positioned and clamped through floating clamping parts 34 between the stirring cylinders 3, and one end of the two displacement rods 3 is provided with the same stirring part 33. S3, the raw materials are stirred and treated by adding water; S31, water is slowly added and wet stirring is carried out, and finally uniform dolomite mortar is obtained.

[0009] Through the intermittent engagement structure of the gear A and the interval teeth in the stirring assembly A, combined with the stretching and rotating of the stirring rod B driven by water pressure, the intelligent switching of the "directional stirring" and "disordered stirring" is realized, strong shear force and turbulent flow are generated, the raw material agglomeration is effectively broken, the mixing dead angle problem is solved, the mixing uniformity and efficiency are significantly improved, the water adding process and stirring action are innovatively deeply integrated, the stirring rod B is driven to stretch out by using the same water supply system and synchronous water spraying is realized, the process effect of "stirring and wetting at the same time, mixing and adding at the same time" is realized, local over-wetting and agglomeration are avoided, the wet stirring time is shortened, and the workability and stability of the mortar slurry are ensured.

[0010] Preferably, the end face of the movable end is provided with a displacement hole, and two opposite convex grooves are arranged on the inner wall of the displacement hole, the stirring rod B is slidably arranged in the displacement hole, the convex edge is slidably arranged in the convex groove, and the water outlet hole penetrates the convex groove.

[0011] Preferably, the connecting shaft in the fixed tooth member is linked with a discharging member, and the discharging member comprises a discharging shaft and a discharging screw arranged outside the discharging shaft. The moving assembly comprises a toothed disc and a transmission toothed rod. The toothed disc is sleeved outside the shaft cylinder A and locked with the shaft cylinder A to prevent rotation. The transmission toothed rod comprises a transmission gear and a transmission rod. One end of the transmission rod is connected with the output shaft of the driving motor through a shaft coupling. The transmission gear is connected with the other end of the transmission rod, and the transmission gear is engaged with the toothed disc. The mixing barrel comprises a barrel body. A discharging pipe is arranged at the bottom of the barrel body in communication. A barrel cover is arranged at the top of the barrel body. An inlet hopper is arranged at the top of the barrel cover in communication. An outer protective cylinder is connected with the top of the barrel cover. The outer protective cylinder covers the positions of the transmission assembly and the water injection member. The water injection member comprises a water inlet connector and a water inlet sealing cylinder. The water inlet connector is in communication with the outside of the water inlet sealing cylinder. The water inlet connector is connected with a water supply pipe. The sealing cylinder is sleeved outside the shaft cylinder B and covers the top of the shaft cylinder A.

[0012] Preferably, a through hole is arranged on the stirring cylinder. The floating clamping member comprises a sealing cover and a floating clamping cylinder. The sealing cover is connected with the top of the stirring cylinder and covers the through hole. The floating clamping cylinder is T-shaped. The bottom end of the floating clamping cylinder is hollow. A buoyancy ring is arranged inside the bottom end of the floating clamping cylinder. The floating clamping cylinder is inserted into the through hole. A reset spring B is arranged between the top of the floating clamping cylinder and the inner top of the sealing cover.

[0013] Preferably, a taper hole, a storage hole and a straight hole are arranged in the displacement rod in communication and on the same axis. A positioning cylinder is connected with one end of the displacement rod. A positioning hole is arranged on the displacement rod in communication with the storage hole. The positioning hole is in communication with the through hole. The straight hole is in communication with the inside of the positioning cylinder. The taper hole is in communication with the water cavity between the shaft cylinder A and the shaft cylinder B. The water cavity is in communication with the inside of the positioning cylinder through the taper hole, the storage hole and the straight hole. A reset spring C is arranged in the taper hole. One end of the reset spring C is connected with the stirring cylinder. The other end of the reset spring C is connected with the taper hole. Positioning covers are arranged on the top and the bottom of the positioning cylinder through bolts.

[0014] Preferably, the stirring member comprises a rotating cylinder. The two ends of the rotating cylinder are inserted into the two positioning cylinders in communication. Positioning covers are sleeved outside the rotating cylinder. The rotating cylinder is provided with water inlet holes, nozzles and blades. The water inlet holes are arranged in multiple groups and penetrate into the inside of the rotating cylinder. The position of the rotating cylinder with the water inlet holes is located in the positioning cylinder. The nozzles are arranged in multiple groups and vertically in communication on the rotating cylinder. The two blades are arranged oppositely and connected with the rotating cylinder.

[0015] Preferably, a gear B is arranged on the rotating cylinder near the top end, and an internal gear ring is arranged on the inner wall of the barrel near the top end.

[0016] Preferably, a stirring assembly C is connected to the shaft cylinder B, and the stirring assembly C has at least one stirring rod C connected to the shaft cylinder B and located at the bottom end of the shaft cylinder A, and the stirring rod C is connected with a shovel plate arranged in an inclined state, the side of the shovel plate away from the stirring rod C is in static friction contact with the inner bottom end of the barrel, and a trapezoidal port is formed in the shovel plate, the caliber of the front of the trapezoidal port is large, and the caliber of the rear is small.

[0017] Preferably, a material throwing hopper is arranged outside the shaft cylinder A, and the material throwing hopper is connected to the shaft cylinder A through a connecting piece, a plurality of material throwing ports are formed in the surface of the material throwing hopper, and three groups of lapping blocks are arranged on the inner wall of the material throwing hopper, the three groups of lapping blocks are arranged in three layers, and a layered ring is arranged on the material throwing hopper and located on the three layers of lapping blocks.

[0018] Preferably, a material throwing hopper is arranged outside the shaft cylinder A, and the material throwing hopper is connected to the shaft cylinder A through a connecting piece, a plurality of material throwing ports are formed in the surface of the material throwing hopper, and three groups of lapping blocks are arranged on the inner wall of the material throwing hopper, the three groups of lapping blocks are arranged in three layers, and a layered ring is arranged on the material throwing hopper and located on the three layers of lapping blocks.

[0019] Compared with the prior art, the present application has the following advantages: 1. The present application realizes dynamic and multi-modal intelligent stirring, significantly improves mixing uniformity and efficiency, and through the intermittent meshing structure of the gear A and the interval teeth arranged in the stirring assembly A, combined with the stretching and rotating mechanism of the stirring rod B driven by water pressure, the stirring part is intelligently and cyclically switched between the two modes of "directional stirring" and "disordered stirring", this dynamic stirring method can generate strong shear force and turbulence, effectively break the agglomeration of raw materials, prevent caking, solve the problem of mixing dead angle existing in traditional stirrers due to fixed flow field, and compared with powder stirring, the stirring rod B is extended to enlarge the contact surface with the fluid through the convex edge, providing greater shear turbulence during slurry stirring, compared with single mode stirring, the present application realizes more macroscopic uniform dispersion and more microscopic component intermingling, thereby significantly improving the homogenization degree of dolomite mortar and product consistency.

[0020] 2. The present application innovatively integrates the water adding process with the stirring action, realizes efficient and uniform wet mixing process, after dry mixing is completed, the same water supply system is used to drive the stirring rod B to extend and simultaneously spray water from the movable end, this design enables water to be directly introduced into high-speed moving raw material particles in the form of fine stream at the source of stirring action, realizing the process effect of "stirring and wetting simultaneously, mixing and adding simultaneously", this method completely avoids the problems of local over-wetting, caking or powder flying caused by centralized water adding from the top in traditional process, water can quickly and uniformly spread in dry mixed material, greatly shortens the wet mixing time, improves production efficiency, and ensures that the mortar slurry has excellent workability and stability.

[0021] 3. This invention constructs a three-dimensional, full-range composite mixing flow field to ensure mixing without dead angles. The mixing equipment integrates axial mixing (mixing component A), radial mixing (mixing component B and agitator), and bottom scraper (mixing component C), forming a three-dimensional composite mixing flow field covering the entire volume of the mixing tank. In particular, the blades in mixing component B generate a composite motion of revolution and rotation under the meshing of gear B and internal gear ring, which not only enhances the mixing effect in the central area, but also effectively scrapes and mixes the material near the tank wall. This full-range, dead-angle-free mixing method ensures that all raw materials from the core area to the boundary area can participate in efficient convection and diffusion, thereby ensuring the uniformity and stability of the quality of each batch of products.

[0022] 4. Dolomite mortar prepared according to the formula of this invention: Strength performance: The interfacial bonding force between modified dolomite powder and cement and other components is greatly enhanced, the compressive strength of the mortar can reach a high value, the flexural strength can also reach a good level, and the long-term strength stability is good. Performance: The synergistic effect of high-efficiency water-reducing agent and water-retaining thickener gives the mortar good fluidity, spreadability and excellent water retention. It is not easy to separate or bleed during construction, and it is easy to carry out construction. Durability: The micro-bubbles introduced by the air-entraining agent improve the mortar's freeze resistance and impermeability, while also providing good resistance to corrosive media such as acids and alkalis, effectively extending the mortar's service life. Cost and Environmental Protection: By making reasonable use of dolomite resources, the cost of modifiers and additives is relatively low, and the production process is environmentally friendly, which is in line with the development trend of green building. Attached Figure Description

[0023] Figure 1 This is a flow chart of a dolomite mortar preparation process proposed in this invention; Figure 2 for Figure 1 Schematic diagram of the external structure of the mixing equipment; Figure 3 for Figure 1 Schematic diagram of the internal structure of the mixing equipment; Figure 4 for Figure 2 A structural breakdown diagram of the mixing tank; Figure 5 for Figure 3 Layout diagram of the water injection component and shaft assembly; Figure 6 for Figure 3 Schematic diagram of the mixing assembly A and the shaft assembly; Figure 7 for Figure 6 A cross-sectional view of stirring rod A in stirring assembly A; Figure 8 for Figure 7 The structural breakdown diagram in the text; Figure 9 for Figure 8 Exploded view of stirring rod B, rotating shaft, and return spring A; Figure 10 for Figure 9 Cross-sectional view of stirring rod B; Figure 11 for Figure 6 Separation diagram of central shaft cylinder A, shaft cylinder B, and fixed gear; Figure 12 for Figure 11 Cross-sectional view of the central shaft cylinder A and the stirring cylinder; Figure 13 for Figure 12 Sectional view of the mid-displacement rod; Figure 14 for Figure 13 Structural breakdown diagram of the floating card component; Figure 15 for Figure 13 A split view of the return spring C and the displacement rod; Figure 16 for Figure 3 Schematic diagram of the structure of the central hopper and the distribution plate; Figure 17 for Figure 16 A schematic diagram of the structure viewed from below. Figure 18 for Figure 16 A breakdown diagram of the intermediate layer ring and the hopper.

[0024] In the figure: 1, shaft rod group; 11, shaft cylinder A; 111, water hole A; 12, shaft cylinder B; 13, fixed tooth part; 131, column body; 1311, interval tooth; 132, connecting shaft; 133, locking disc; 2, stirring assembly A; 21, stirring rod A; 211, shaft hole; 212, containing cavity A; 213, containing cavity B; 214, water hole B; 22, stirring rod B; 221, convex edge; 222, transmission cavity; 23, rotating shaft; 231, gear A; 232, transmission head; 24, reset spring A; 25, movable end head; 251, displacement hole; 252, convex groove; 3, stirring assembly B; 31, stirring cylinder; 311, through hole; 32, displacement rod; 321, conical hole; 322, accumulation hole; 3221, positioning hole; 323, straight hole; 324, positioning cylinder; 325, positioning cover; 33, stirring part; 331, rotating cylinder; 3311, water inlet hole; 3312, spray head; 332, blade plate; 34, floating clamping part; 341, sealing cover; 342, floating clamping cylinder; 343, reset spring B; 35, reset spring C; 36, gear B; 37, inner gear ring; 4, stirring assembly C; 41, stirring rod C; 42, shovel plate; 421, trapezoidal port; 5, discharging part; 6, transmission assembly; 61, tooth disc; 62, transmission tooth rod; 7, mixing bucket; 71, bucket body; 72, discharging pipe; 73, bucket cover; 731, feeding hopper; 74, outer protection cylinder; 8, water injection part; 9, throwing hopper; 91, throwing port; 92, layering ring; 921, lapping block; 93, connecting part; 10, distributing disc; 101, distributing groove; 102, distributing port. DETAILED DESCRIPTION

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly and specifically limited.

[0027] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0029] With reference to Figure 1 A dolomite mortar preparation process, comprising the following steps: S1, modification treatment of dolomite; S11, crushing dolomite and then grinding it into dolomite powder by a grinding machine; S12, preparing the following raw materials: cement, dolomite powder, fly ash, high-efficiency water reducing agent, water-retention thickening agent, air entraining agent, modifier, and water, which cooperate with each other and synergistically act to enable the mortar to achieve excellent effects in strength, workability, durability, etc., while taking into account cost and environmental protection; Among them, the cement serves as a cementing material to provide the basic bonding force and strength basis of the mortar; The modified dolomite powder has greatly enhanced interfacial bonding force with the components such as cement after modification treatment, which can significantly improve the strength and durability of the mortar; The fly ash fills the voids between the cement particles, improves the workability and compactness of the mortar, while reducing the cement dosage, saving cost, and improving the durability of the mortar; The high-efficiency water reducing agent reduces the water consumption, improves the fluidity and strength of the mortar, and improves the workability; The water-retention thickening agent keeps the moisture in the mortar, prevents bleeding, improves the water retention and cohesiveness of the mortar, and facilitates construction; The air entraining agent introduces small and uniform air bubbles, improves the frost resistance and impermeability of the mortar, and at the same time improves the workability of the mortar; The modifier modifies the dolomite, enhances the compatibility and reactivity with other components, and further improves the performance of the mortar; S2, dry mixing treatment of raw materials; S21, sequentially adding cement, modified dolomite powder, fly ash, high-efficiency water reducing agent, water-retention thickening agent, air entraining agent, and modifier into a stirring device to uniformly mix the raw materials; S3, water stirring treatment of raw materials; S31, slowly add water, wet mixing, finally get uniform dolomite mortar.

[0030] Referring to Figures 2-18 A kind of dolomite mortar preparation stirring equipment, including mixing bucket 7, shaft rod group 1 is equipped in mixing bucket 7, and shaft rod group 1 is equipped with stirring assembly A2 and stirring assembly B3;Shaft rod group 1 includes shaft cylinder A11, shaft cylinder B12 is equipped in the through of shaft cylinder A11, wherein the bottom end of shaft cylinder A11 is in sealed state, the bottom end of shaft cylinder B12 is extended out of the bottom end of shaft cylinder A11, and the two are connected together, and there is water cavity between the inner wall of shaft cylinder A11 and the outer wall of shaft cylinder B12, fixed tooth piece 13 is equipped in the inside of shaft cylinder B12, and water injection part 8 is equipped outside shaft cylinder B12 and is sleeved in the top position of shaft cylinder A11, shaft cylinder A11 and shaft cylinder B12 are rotatably connected with water injection part 8 by sealing bearing, water injection part 8 is connected with the same external water supply pipe, when external water supply equipment starts to supply water, water is injected into the water cavity between shaft cylinder A11 and shaft cylinder B12 by water supply pipe, transmission assembly 6 is equipped outside shaft cylinder A11, transmission assembly 6 is used to drive the power of external driving device to shaft rod group 1 and drive shaft cylinder A11 to rotate, shaft cylinder A11 can also drive shaft cylinder B12 to rotate; Stirring assembly A2 includes stirring rod A21 connected outside shaft cylinder A11, and stirring rod A21 is equipped with the shaft hole 211, the accommodating cavity A212, the accommodating cavity B213 that are connected and keep the same horizontal axis and are opened in the inside, the shaft hole 211 is equipped with the rotating shaft 23, and the two ends of rotating shaft 23 have gear A231 and transmission head 232 respectively, the accommodating cavity A212 and the accommodating cavity B213 are equipped with the reset spring A24 and the stirring rod B22 that are connected, the reset spring A24 is sleeved on rotating shaft 23, and the two ends of reset spring A24 are rotatably connected at the opposite end positions of accommodating cavity A212 and stirring rod B22 respectively, wherein reset spring A24 and stirring rod B22 are rotatably connected, and reset spring A24 is located in accommodating cavity A212; In the initial state of the stirring rod B22, the end portion of the stirring rod B22 connected with the reset spring A24 is located in the accommodating cavity A212, one end of the stirring rod A21 is rotationally connected with the movable end head 25, the movable end head 25 is externally provided with a water outlet hole, the water outlet hole is used for discharging water into the accommodating cavity A212 and the accommodating hole B213, and the other end of the stirring rod A21 is provided with a plurality of water holes B214 which are circumferentially distributed and centered on the shaft hole 211 and are communicated with the accommodating hole A212, the shaft cylinder A11 is provided with the water hole A111 which is correspondingly communicated with the water hole B214, the water in the water cavity enters the accommodating hole A212 through the communicated water hole A111 and the water hole B214, the end of the stirring rod A21 away from the reset spring A24 is movably inserted into the movable end head 25, the stirring rod B22 is externally provided with the flange 221 which is located in the accommodating cavity B213, the stirring rod B22 is provided with the transmission cavity 222, and the transmission cavity 222 is internally provided with the clamping groove which is matched with the transmission head 232, the part of the rotating shaft 23 with the transmission head 232 is located in the transmission cavity 222, and the end of the rotating shaft 23 with the gear A231 penetrates through the shaft cylinder A11 and the shaft cylinder B12; The fixed tooth member 13 includes a plurality of column bodies 131 which are arranged from top to bottom in the shaft cylinder B12, there is a gap between the column bodies 131 and the shaft cylinder B12, so as to prevent affecting the rotation of the shaft cylinder B12 following the shaft cylinder A11, and the column bodies 131 cannot rotate in the shaft cylinder B12, and the top of the column body 131 is provided with the interval tooth 1311 which is arranged on the top of the column body 131 and is incomplete, when the gear A231 is engaged with the interval tooth 1311, the rotating shaft 23 can be freely rotated or driven to rotate, the adjacent column bodies 131 are connected through the same connecting shaft 132 which penetrates through the shaft cylinder B12 and is connected with the locking disc 133, the connecting shaft 132 is not movable relative to the shaft cylinder B12, and the locking disc 133 is connected to the top of the mixing barrel 7, so as to prevent the connecting shaft 132 from rotating. The stirring assembly B3 includes two stirring cylinders 31 which are connected to the shaft cylinder A11 and are communicated with each other, and each of the two stirring cylinders 31 is provided with the displacement rod 32 which is positioned and clamped with the stirring cylinder 31 through the floating clamping piece 34, so that the displacement rod 32 cannot move in the stirring cylinder 31, and the same stirring member 33 is arranged at the end of the two displacement rods 32.

[0031] Referring to Figures 2-18The utility model provides a dolomite mortar preparation stirring equipment, dry mixing process: the raw material is injected into the barrel 71 through the feeding hopper 731 in turn, the driving device (motor) drives the shaft cylinder A11 and the shaft cylinder B12 to rotate through the transmission assembly 6, the shaft cylinder A11 drives the stirring rod A21 to rotate, and the shaft cylinder A11 drives two stirring cylinders 31 and an agitator 33 to rotate in the barrel 71, so that the stirring rod A21, the stirring cylinder 31 and the agitator 33 are used for mixing the raw materials in the barrel 71, and the shaft cylinder A11 and the shaft cylinder B12 rotate around the fixed tooth piece 13 as the rotation center, so when the shaft 23 is driven by the shaft cylinder A11 and the shaft cylinder B12 to rotate, the gear A231 on one end of the shaft 23 in the shaft cylinder B12 and the interval tooth 1311 keep the cycle state of engagement, separation, engagement and separation; Wet mixing process: when the raw materials are dry mixed uniformly, water is injected into the water cavity through the water injection part 8 of the external water supply device, and when the water cavity is filled with water, the water enters the water hole B214 through the water hole A111, and then enters the containing cavity A212 where the return spring A24 is located through the water hole B214.When the water continues to fill and generates pressure, the water pressure extrudes one end of the stirring rod B22 to push one end of the stirring rod B22 out of the containing cavity A212 and move to the containing cavity B213 position, while the stirring rod B22 slides outside the shaft 23 and stretches the return spring A24, and the stirring rod B22 and the convex edge 221 move to extend through the movable end 25.When the stirring rod B22 is pushed to the limit position by water pressure, the transmission head 232 is engaged with the clamping groove, so that the shaft 23 and the stirring rod B22 are connected together, the gear A231 and the interval tooth 1311 keep the rotating shaft 23 rotating, the stirring rod B22 drives the convex edge 221 to rotate, so that the convex edge 221 rotates to a fixed angle, and then in the cycle state, the gear A231 and the interval tooth 1311 are not engaged, so that the shaft 23 and the stirring rod B22 can rotate under the impact of the stirring force, and the stirring rod B22 and the convex edge 211 can rotate arbitrarily, so that the convex edge 211 forms an indefinite angle of inclination to stir the raw materials in the barrel 71, and when the water extrudes the stirring rod B22, the water is extruded from the movable end 25 through the water outlet, at this time the stirring rod B22 and the convex edge 221 are accompanied by water to wet mix the raw materials.

[0032] Reference Figures 2-18The utility model provides a dolomite mortar preparation stirring equipment, and the movable end 25 end face is equipped with displacement hole 251, and the inner wall of displacement hole 251 is equipped with two opposite convex slots 252, stirring rod B22 is sleeved in displacement hole 251, convex edge 221 is sleeved in convex slot 252, water outlet hole penetrates convex slot 252, when stirring rod B22 rotates, stirring rod B22 drives convex edge 221 to rotate in containing cavity B213, and simultaneously convex edge 221 drives movable end to rotate at the end of stirring rod A21, and when stirring rod B22 moves to limit position, the one end of convex edge 221 close to reset spring A24 is located in convex slot 252, and water outlet hole is also exposed to facilitate water to pass into bucket body 71, and when water pressure reduces or even disappears, the reset effect of reset spring A24 will pull back stirring rod B22, makes stirring rod B22 move in containing cavity B213, and the one end of stirring rod B22 connected reset spring A24 moves into containing cavity A212, and stirring rod B22 and convex edge 221 retract into movable end 25.

[0033] Refer to Figures 2-18 The utility model provides a dolomite mortar preparation stirring equipment, and the movable end 25 end face is equipped with displacement hole 251, and the inner wall of displacement hole 251 is equipped with two opposite convex slots 252, stirring rod B22 is sleeved in displacement hole 251, convex edge 221 is sleeved in convex slot 252, water outlet hole penetrates convex slot 252, when stirring rod B22 rotates, stirring rod B22 drives convex edge 221 to rotate in containing cavity B213, and simultaneously convex edge 221 drives movable end to rotate at the end of stirring rod A21, and when stirring rod B22 moves to limit position, the one end of convex edge 221 close to reset spring A24 is located in convex slot 252, and water outlet hole is also exposed to facilitate water to pass into bucket body 71, and when water pressure reduces or even disappears, the reset effect of reset spring A24 will pull back stirring rod B22, makes stirring rod B22 move in containing cavity B213, and the one end of stirring rod B22 connected reset spring A24 moves into containing cavity A212, and stirring rod B22 and convex edge 221 retract into movable end 25. The utility model provides a dolomite mortar preparation stirring equipment, and the movable end 25 end face is equipped with displacement hole 251, and the inner wall of displacement hole 251 is equipped with two opposite convex slots 252, stirring rod B22 is sleeved in displacement hole 251, convex edge 221 is sleeved in convex slot 252, water outlet hole penetrates convex slot 252, when stirring rod B22 rotates, stirring rod B22 drives convex edge 221 to rotate in containing cavity B213, and simultaneously convex edge 221 drives movable end to rotate at the end of stirring rod A21, and when stirring rod B22 moves to limit position, the one end of convex edge 221 close to reset spring A24 is located in convex slot 252, and water outlet hole is also exposed to facilitate water to pass into bucket body 71, and when water pressure reduces or even disappears, the reset effect of reset spring A24 will pull back stirring rod B22, makes stirring rod B22 move in containing cavity B213, and the one end of stirring rod B22 connected reset spring A24 moves into containing cavity A212, and stirring rod B22 and convex edge 221 retract into movable end 25. The utility model provides a dolomite mortar preparation stirring equipment, and the movable end 25 end face is equipped with displacement hole 251, and the inner wall of displacement hole 251 is equipped with two opposite convex slots 252, stirring rod B22 is sleeved in displacement hole 251, convex edge 221 is sleeved in convex slot 252, water outlet hole penetrates convex slot 252, when stirring rod B22 rotates, stirring rod B22 drives convex edge 221 to rotate in containing cavity B213, and simultaneously convex edge 221 drives movable end to rotate at the end of stirring rod A21, and when stirring rod B22 moves to limit position, the one end of convex edge 221 close to reset spring A24 is located in convex slot 252, and water outlet hole is also exposed to facilitate water to pass into bucket body 71, and when water pressure reduces or even disappears, the reset effect of reset spring A24 will pull back stirring rod B22, makes stirring rod B22 move in containing cavity B213, and the one end of stirring rod B22 connected reset spring A24 moves into containing cavity A212, and stirring rod B22 and convex edge 221 retract into movable end 25. The water injection part 8 comprises a water inlet joint and a water inlet sealing cylinder, the water inlet joint is communicated with the outside of the water inlet sealing cylinder, the water inlet joint is connected with a water supply pipe, the sealing cylinder is sleeved outside the shaft cylinder B12 and covers the top of the shaft cylinder A11, when water is injected through the water supply pipe, the water enters the sealing cylinder and then enters the water cavity.

[0034] Referring to Figures 2-18 The stirring device for dolomite mortar preparation, a through hole 311 is arranged on the stirring cylinder 31, the through hole 311 penetrates to the inside of the stirring cylinder 31, the floating clamping piece 34 comprises a sealing cover 341 and a floating clamping cylinder 342, the sealing cover 341 is connected to the top of the stirring cylinder 31 and covers the through hole 311, the floating clamping cylinder 342 is T-shaped, the bottom end of the floating clamping cylinder 342 is hollow, and a buoyancy ring is arranged in the inside, when the floating clamping cylinder 342 is inserted into the through hole 311, the top of the floating clamping cylinder 342 is located at the top of the stirring cylinder 31 and in the sealing cover 341, the bottom end of the floating clamping cylinder 342 is partially inserted into the stirring cylinder 31, a reset spring B 343 is arranged between the top of the floating clamping cylinder 342 and the inside top of the sealing cover 341, the two ends of the reset spring B 343 are respectively pressed at the position of the top of the floating clamping cylinder 342 and the inside top of the sealing cover 341, the floating clamping cylinder 342 can be pressed downward by the reset spring B 343 to keep the top end close to the top of the stirring cylinder 31, in the initial state, the displacement rod 32 is located in the stirring cylinder 31, the positioning hole corresponds to the through hole 311, and the bottom end of the floating clamping cylinder 342 is inserted into the positioning hole from the through hole 311, so that the displacement rod 32 is positioned in the stirring cylinder 31.

[0035] Referring to Figures 2-18 The stirring device for dolomite mortar preparation, a through hole 311 is arranged on the stirring cylinder 31, the through hole 311 penetrates to the inside of the stirring cylinder 31, the floating clamping piece 34 comprises a sealing cover 341 and a floating clamping cylinder 342, the sealing cover 341 is connected to the top of the stirring cylinder 31 and covers the through hole 311, the floating clamping cylinder 342 is T-shaped, the bottom end of the floating clamping cylinder 342 is hollow, and a buoyancy ring is arranged in the inside, when the floating clamping cylinder 342 is inserted into the through hole 311, the top of the floating clamping cylinder 342 is located at the top of the stirring cylinder 31 and in the sealing cover 341, the bottom end of the floating clamping cylinder 342 is partially inserted into the stirring cylinder 31, a reset spring B 343 is arranged between the top of the floating clamping cylinder 342 and the inside top of the sealing cover 341, the two ends of the reset spring B 343 are respectively pressed at the position of the top of the floating clamping cylinder 342 and the inside top of the sealing cover 341, the floating clamping cylinder 342 can be pressed downward by the reset spring B 343 to keep the top end close to the top of the stirring cylinder 31, in the initial state, the displacement rod 32 is located in the stirring cylinder 31, the positioning hole corresponds to the through hole 311, and the bottom end of the floating clamping cylinder 342 is inserted into the positioning hole from the through hole 311, so that the displacement rod 32 is positioned in the stirring cylinder 31. When the water in the water cavity enters the stirring barrel 31, it passes through the reset spring C35 and rushes to the position of the conical hole 321, and then enters the storage hole 322 and the straight hole 323, and further enters the positioning barrel 324. In this process, because the inlet diameter is larger than the outlet diameter, the water pressure can be collected in the position of the conical hole 321, and then enter the storage hole 321. Because the diameter of the straight hole 323 is smaller than that of the storage hole 321, the water will always fill the storage hole 321, and the buoyancy and pressure of the water will push the positioning barrel 324 upwards, so that the positioning barrel 324 moves upwards in the positioning hole 3221 and the through hole 311, until the bottom end of the positioning barrel 324 leaves the positioning hole 3221 and enters the through hole 311. At this time, the positioning barrel 324 does not position the displacement rod 32, so that the displacement rod 32 can also move, so as to use water pressure to extrude the displacement rod 32. When the two displacement rods 32 are pushed to move and extend out of the stirring barrel 31, the two displacement rods 32 drive the rotating barrel 331 away from the stirring barrel 31, and the leaf plate 332 contacts the inner wall of the barrel body 71 in the form of static friction, and the water in the positioning barrel 324 enters the rotating barrel 331 through the water inlet hole 33111 and is sprayed out from the spray head 3312. In addition, the leaf plate 332 can not only be used for wet mixing of the raw materials in the barrel body 71, but also can be used for scraping the inner wall of the barrel body 71.

[0036] Referring to Figures 2-18 A dolomite mortar preparation stirring device, the stirring part 33 includes a rotating barrel 331, both ends of the rotating barrel 331 are sealed to keep the inside of the rotating barrel 331 hollow, and both ends of the rotating barrel 331 are respectively inserted through two positioning barrels 324, a positioning cover 325 is sleeved outside the rotating barrel 331, and the positioning cover 325 is rotatably connected with the rotating barrel 331. The rotating barrel 331 has a water inlet hole 3311, a spray head 3312, and a leaf plate 332. The water inlet hole 3311 has multiple groups and penetrates into the inside of the rotating barrel 331. The position of the water inlet hole 3311 on the rotating barrel 331 is located in the positioning barrel. The spray head 3312 has multiple and is vertically connected on the rotating barrel 331. The two leaf plates 332 are oppositely arranged and connected on the rotating barrel 331. When the shaft cylinder A11 and the shaft cylinder B12 rotate, they drive the stirring rod 31, the displacement rod 32, and the rotating barrel 331 to rotate. The rotating barrel 331 drives the leaf plate 332 on it to rotate, so as to uniformly stir the raw materials by the stirring rod 31, the displacement rod 32, the rotating barrel 331, and the leaf plate 332.

[0037] Referring to Figures 2-18The present application discloses a dolomite mortar preparation stirring device, gear B36 is arranged on rotating cylinder 331 near the top end, inner ring gear 37 is arranged on the inner wall of barrel 71 near the top end, when displacement rod 32 moves in stirring cylinder 31 and displacement rod 32 drives rotating cylinder 331 to move, gear B36 on rotating cylinder 331 meshes with inner ring gear 37, so that when rotating cylinder 331 rotates in barrel 71, gear B36 meshes with inner ring gear 37 to make rotating cylinder 331 also rotate when rotating in shaft cylinder A11, i.e. rotating cylinder 331 drives leaf plate 332 to rotate to stir, at the same time, nozzle 3312 sprays water into barrel 71, so that water is added while stirring, in addition, nozzle 3312 can also be used to spray water on the inner wall of barrel 71 to clean, when water is not sprayed and water decreases or disappears, return spring C35 returns to pull displacement rod 32 to retract into stirring cylinder 31, so that rotating cylinder 331 is close to the end of stirring cylinder 31, when positioning hole 3221 corresponds to through hole 311, floating clamp cylinder 342 falls from through hole 311 into positioning hole 3221 under the action of return spring B343, so that displacement rod 32 is not movable in stirring cylinder 31.

[0038] Referring to Figures 2-18 The present application discloses a dolomite mortar preparation stirring device, shaft cylinder B12 is connected with stirring assembly C4, and stirring assembly C4 is at least one and is located at the bottom end of shaft cylinder A11, stirring assembly C4 comprises stirring rod C41 connected on shaft cylinder B12, and shovel plate 42 arranged in an inclined state is connected on stirring rod C41, the side of shovel plate 42 away from stirring rod C41 is in contact with the inner bottom end of barrel 71 in a static friction mode, trapezoidal port 421 is arranged on shovel plate 42, the caliber of the front of trapezoidal port 421 is large in the forward direction, and the caliber of the rear is small, when shaft cylinder A11 and shaft cylinder B12 rotate, shaft cylinder B12 drives stirring rod C41 to rotate, stirring rod C41 drives shovel plate 42 to lift the raw materials, and the raw materials passing through trapezoidal port 421 are turned over.

[0039] Referring to Figures 2-18The present application discloses a dolomite mortar preparation stirring device, a shaft cylinder A11 is externally sleeved with a material throwing hopper 9, and the material throwing hopper 9 is connected with the shaft cylinder A11 through a connecting piece 93, a plurality of material throwing openings 91 are formed in the surface of the material throwing hopper 9, three groups of lapping blocks 921 are arranged on the inner wall of the material throwing hopper 9, the three groups of lapping blocks 921 are arranged in three layers, and a layered ring 92 is arranged on the three layers of lapping blocks 921 in the material throwing hopper 9, wherein the lapping blocks 921 and the layered ring 92 are connected through bolts, the three layered rings 92 are arranged from top to bottom in the material throwing hopper 9, the diameters of the three layered rings 92 and the inner ring diameters are sequentially reduced from top to bottom, the connecting piece 93 is connected on the three layered rings 92, and when the shaft cylinder A11 and the shaft cylinder B12 rotate, the material throwing hopper 9 is driven to rotate through the connecting piece 93, when the raw materials fall into the material throwing hopper 9, the raw materials fall on the three layered rings 92 and the inner wall of the material throwing hopper 9, and when the material throwing hopper 9 rotates, the raw materials in the material throwing hopper 9 are thrown out from the material throwing openings 91, so that the raw materials are dispersed.

[0040] Referring to Figures 2-18 Figures 2-18 The present application discloses a dolomite mortar preparation stirring device, a shaft cylinder A11 is externally sleeved with a material throwing hopper 9, and the material throwing hopper 9 is connected with the shaft cylinder A11 through a connecting piece 93, a plurality of material throwing openings 91 are formed in the surface of the material throwing hopper 9, three groups of lapping blocks 921 are arranged on the inner wall of the material throwing hopper 9, the three groups of lapping blocks 921 are arranged in three layers, and a layered ring 92 is arranged on the three layers of lapping blocks 921 in the material throwing hopper 9, wherein the lapping blocks 921 and the layered ring 92 are connected through bolts, the three layered rings 92 are arranged from top to bottom in the material throwing hopper 9, the diameters of the three layered rings 92 and the inner ring diameters are sequentially reduced from top to bottom, the connecting piece 93 is connected on the three layered rings 92, and when the shaft cylinder A11 and the shaft cylinder B12 rotate, the material throwing hopper 9 is driven to rotate through the connecting piece 93, when the raw materials fall into the material throwing hopper 9, the raw materials fall on the three layered rings 92 and the inner wall of the material throwing hopper 9, and when the material throwing hopper 9 rotates, the raw materials in the material throwing hopper 9 are thrown out from the material throwing openings 91, so that the raw materials are dispersed.

[0041] The above embodiment is the preferred embodiment of the present application, but the embodiment of the present application is not limited to the above embodiment, any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the present application shall be equivalent replacement mode, and all shall be included in the protection scope of the present application.

Claims

1. A process for preparing dolomite mortar, comprising the following steps: S1. Modification treatment of dolomite; S11. Crush the dolomite and then grind it into dolomite powder using a grinder. S12. Prepare the following raw materials: cement, dolomite powder, fly ash, high-efficiency water-reducing agent, water-retaining and thickening agent, air-entraining agent, modifier, and water; S2, Dry mixing of raw materials; S21. Add cement, modified dolomite powder, fly ash, high-efficiency water-reducing agent, water-retaining thickener, air-entraining agent, and modifier to the mixing equipment in sequence to make the raw materials mix evenly. The mixing equipment includes a mixing tank (7), a shaft assembly (1) is provided in the mixing tank (7), and a stirring component A (2) and a stirring component B (3) are provided on the shaft assembly (1). The shaft assembly (1) includes a shaft cylinder A (11), a shaft cylinder B (12) is provided through the shaft cylinder A (11), and there is a water cavity between the inner wall of the shaft cylinder A (11) and the outer wall of the shaft cylinder B (12). A fixed gear (13) is provided inside the shaft cylinder B (12), and a water injection component (8) is provided outside the shaft cylinder B (12) and sleeved on the top of the shaft cylinder A (11). The shaft cylinder A (11) and the shaft cylinder B (12) are rotatably connected to the water injection component (8) through a sealed bearing. A transmission assembly (6) is provided outside the shaft cylinder A (11). The stirring assembly A (2) includes a stirring rod A (21) connected to the outside of the shaft cylinder A (11). The stirring rod A (21) has a shaft hole (211), a receiving cavity A (212), and a receiving cavity B (213) that are connected and maintain the same horizontal axis. A rotating shaft (23) is provided in the shaft hole (211), and a gear A (231) and a transmission head (232) are respectively provided at both ends of the rotating shaft (23). A return spring A (24) and a stirring rod B (22) are provided in the receiving cavities A (212) and B (213). (24) is sleeved on the rotating shaft (23), and the two ends of the return spring A (24) are rotatably connected to the opposite ends of the receiving cavity A (212) and the stirring rod B (22). One end of the stirring rod A (21) is rotatably connected to the movable end head (25), and the other end of the stirring rod A (21) is provided with multiple water holes B (214) centered on the shaft hole (211) and distributed in a circular pattern. The water holes B (214) are connected to the receiving hole A (212). The shaft cylinder A (11) is provided with water holes A (111) and is connected to the water holes B (214). The end of the stirring rod A (21) away from the return spring A (24) is movably inserted into the movable end (25). The stirring rod B (22) has a protruding edge (221) on the outside, which is located in the receiving cavity B (213). The stirring rod B (22) has a transmission cavity (222), and one end of the transmission cavity (222) has a slot that cooperates with the transmission head (232). The part of the rotating shaft (23) with the transmission head (232) is located in the transmission cavity (222), and the end of the rotating shaft (23) with the gear A (231) passes through the shaft. Cylinder A (11) and shaft cylinder B (12), fixed gear (13) includes multiple columns (131) arranged from top to bottom in shaft cylinder B (12), and the top of column (131) near the edge is provided with spacer teeth (1311), gear A (231) meshes with spacer teeth (1311), adjacent columns (131) are connected through the same connecting shaft (132), the top of connecting shaft (132) passes through shaft cylinder B (12) and is connected to locking disc (133), locking disc (133) is connected to the top of mixing tank (7); The stirring assembly B (3) includes two stirring drums (31), which are connected to the shaft cylinder A (11). Each of the two stirring drums (31) is provided with a displacement rod (32), which is positioned and engaged with the stirring drum (31) by a floating clamp (34). One end of each of the two displacement rods (32) is provided with the same agitator (33). S3. Raw materials are mixed with water; S31. Slowly add water and mix wet to obtain a uniform dolomite mortar.

2. The mixing equipment for preparing dolomite mortar according to claim 1, characterized in that, The end face of the active end (25) is provided with a displacement hole (251), and the inner wall of the displacement hole (251) is provided with two opposing grooves (252). The stirring rod B (22) slides in the displacement hole (251), the protruding edge (221) slides in the groove (252), and the water outlet passes through the groove (252).

3. The mixing equipment for preparing dolomite mortar according to claim 1, characterized in that, The bottom end of the connecting shaft (132) in the fixed gear (13) is connected to the discharge component (5), and the discharge component (5) includes the discharge shaft and the discharge spiral set outside the discharge shaft; The moving component (6) includes a gear plate (61) and a transmission rack (62). The gear plate (61) is sleeved outside the shaft sleeve A (11) and locked to the shaft sleeve A (11) without rotating. The transmission rack (62) includes a transmission gear and a transmission rod. One end of the transmission rod is connected to the output shaft of the drive motor through a coupling. The transmission gear is connected to the other end of the transmission rod and meshes with the gear plate (61). The mixing tank (7) includes a tank body (71), a discharge pipe (72) is connected to the bottom of the tank body (71), and a tank cover (73) is provided on the top of the tank body (71). A feed hopper (731) is connected to the top of the tank cover (73), and an outer protective cylinder (74) is connected to the top of the tank cover (73). The outer protective cylinder (74) covers the location of the transmission component (6) and the water injection component (8). The water injection component (8) includes a water inlet connector and a water inlet sealing cylinder. The water inlet connector is connected to the outside of the water inlet sealing cylinder and the water inlet connector is connected to the water supply pipe. The sealing cylinder is sleeved outside the shaft cylinder B (12) and covers the top of the shaft cylinder A (11).

4. The mixing equipment for preparing dolomite mortar according to claim 1, characterized in that, A through hole (311) is provided on the stirring drum (31). The floating clamp (34) includes a sealing cover (341) and a floating clamp (342). The sealing cover (341) is connected to the top of the stirring drum (31) and covers the through hole (311). The floating clamp (342) is T-shaped and the bottom of the floating clamp (342) is hollow and has a buoyancy ring inside. The floating clamp (342) is inserted into the through hole (311). A return spring B (343) is provided between the top of the floating clamp (342) and the top of the sealing cover (341). The two ends of the return spring B (343) are pressed against the top of the floating clamp (342) and the top of the sealing cover (341) respectively.

5. A mixing device for preparing dolomite mortar according to claim 1, characterized in that, The displacement rod (32) has a conical hole (321), a collection hole (322), and a straight hole (323) that are connected and kept on the same axis. One end of the displacement rod (32) is connected to a positioning cylinder (324). The displacement rod (32) also has a positioning hole (3221) that connects to the collection hole (322). The positioning hole (3221) is connected to the through hole (311). The straight hole (323) connects to the inside of the positioning cylinder (324). The conical hole (321) connects to the shaft cylinder. The water cavity between A (11) and shaft cylinder B (12) is connected to the interior of positioning cylinder (324) through conical hole (321), collection hole (322) and straight hole (323). A return spring C (35) is provided in conical hole (321). One end of return spring C (35) is connected to the stirring cylinder (31), and the other end of return spring C (35) is connected to conical hole (321). Positioning caps (325) are bolted to the top and bottom of positioning cylinder (324).

6. The mixing equipment for preparing dolomite mortar according to claim 1, characterized in that, The agitator (33) includes a rotating cylinder (331), and the two ends of the rotating cylinder (331) are respectively inserted into two positioning cylinders (324). The positioning cover (325) is sleeved on the outside of the rotating cylinder (331). The rotating cylinder (331) has a water inlet hole (3311), a nozzle (3312), and a blade (332). There are multiple sets of water inlets (3311) that penetrate into the interior of the rotating cylinder (331). The rotating cylinder (331) with the water inlet hole (3311) is located in the positioning cylinder. There are multiple nozzles (3312) that are vertically connected to the rotating cylinder (331). The two blades (332) are arranged opposite each other and connected to the rotating cylinder (331).

7. A mixing device for preparing dolomite mortar according to claim 1, characterized in that, A gear B (36) is provided near the top of the rotating cylinder (331), and an internal gear ring (37) is provided near the top of the inner wall of the barrel body (71).

8. A mixing device for preparing dolomite mortar according to claim 1, characterized in that, A stirring assembly C (4) is connected to the shaft cylinder B (12), and there is at least one stirring assembly C (4) located at the bottom end of the shaft cylinder A (11). The stirring assembly C (4) includes a stirring rod C (41) connected to the shaft cylinder B (12), and a shovel plate (42) arranged in an inclined state is connected to the stirring rod C (41). The side of the shovel plate (42) away from the stirring rod C (41) contacts the bottom end of the inner wall of the barrel (71) in a static friction manner. A trapezoidal opening (421) is opened on the shovel plate (42), and the front diameter of the trapezoidal opening (421) in the forward direction is large and the rear diameter is small.

9. A mixing device for preparing dolomite mortar according to claim 1, characterized in that, A hopper (9) is fitted on the outside of the shaft cylinder A (11), and the hopper (9) is connected to the shaft cylinder A (11) through a connector (93). Several discharge ports (91) are opened on the surface of the hopper (9). Three sets of overlapping blocks (921) are provided on the inner wall of the hopper (9). The three sets of overlapping blocks (921) are arranged in three layers, and layered rings (92) are provided inside the hopper (9) and on the three layers of overlapping blocks (921).

10. The mixing equipment for preparing dolomite mortar according to claim 1, characterized in that, The shaft cylinder A (11) is also fitted with a material distribution plate (10) and located below the hopper (9). The top of the material distribution plate (10) is provided with a material distribution groove (101), and the top of the material distribution plate (10) is provided with a material distribution port (102).

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