Autoclaved aerated concrete block still kettle capable of recycling steam

Abstract

The invention discloses an autoclaved aerated concrete block autoclave capable of recycling steam, and belongs to the technical field of aerated concrete block processing, the autoclaved aerated concrete block autoclave capable of recycling steam comprises a movable gas transmission mechanism mounted in the autoclave, and the autoclaved aerated concrete block autoclave capable of recycling steam further comprises a steam boiler and a driving assembly. According to the movable gas transmission mechanism, the fixed box and the through groove are arranged, when the movable seat is close to the end part of the still kettle, the gas injection assembly facing the fixed box injects steam into the fixed box, and the back pressure formed by the steam in the fixed box is gradually increased along with the approach of the lead screw nut to the limit position of the end part of the reciprocating lead screw, so that the movable seat is prevented from continuously moving; the rotating speed of the reciprocating lead screw is reduced, non-rigid speed reduction of the reciprocating mechanism is completed, rigid collision between the lead screw nut and the end of the reciprocating lead screw is avoided, and the service life of the reciprocating lead screw is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of aerated concrete block processing, and particularly relates to a steam-circulating autoclave for autoclaved aerated concrete blocks. BACKGROUND

[0002] As a new type of lightweight building material, the autoclave, the core production equipment of autoclaved aerated concrete blocks, is directly related to the product performance and energy consumption level. In recent years, with the improvement of building energy-saving standards, the autoclave technology presents the development trend of high efficiency, integration and green. The traditional autoclave adopts a fixed steam injection structure, and the steam is directly input into the autoclave through a static nozzle, which has a significant problem of uneven steam distribution, resulting in a temperature gradient in the autoclave of more than ±5℃, and a common local overheating or underheating phenomenon, which directly affects the hydration reaction process of the block, causing an increase in the dispersion of the compressive strength and a cracking risk.

[0003] In order to solve the problem of uneven steam distribution, some equipment uses a reciprocating moving mechanism (reciprocating screw, screw nut and moving seat) to drive the nozzle to reciprocate in the autoclave, thereby improving the uniformity of the steam in the autoclave. However, the existing autoclave for autoclaved aerated concrete blocks still has the following deficiencies when in use:

[0004] Firstly, the screw nut and the end of the reciprocating screw will collide when the reciprocating moving mechanism is in use, which can easily damage the screw thread on the reciprocating screw, thereby shortening the service life of the reciprocating screw.

[0005] Secondly, the traditional equipment lacks an effective waste heat recovery mechanism, and the high-temperature steam after autoclaving is directly discharged, causing energy waste. SUMMARY

[0006] The present application aims to provide an autoclave for autoclaved aerated concrete blocks with steam recycling, which solves the technical problem that the screw nut and the end of the reciprocating screw will collide when the reciprocating moving mechanism is in use, which can easily damage the screw thread on the reciprocating screw, thereby shortening the service life of the reciprocating screw.

[0007] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] The utility model provides a steam pressure autoclave for autoclaved aerated concrete block, which comprises a moving gas delivery mechanism installed in the steam pressure autoclave, the moving gas delivery mechanism comprising: two fixed plates, each of which is fixedly connected with the inner wall of the steam pressure autoclave, and the lower end of each of the two fixed plates is provided with a fixed box; a reciprocating screw rod, which is rotatably connected with the two fixed plates and is provided with a screw nut; a moving seat, which is fixedly connected with the screw nut and is provided with a hollow box at the bottom; a plurality of jetting assemblies, each of which is equidistantly installed at the bottom of the hollow box, and the plurality of jetting assemblies are oriented in different directions; the top surface of the fixed box is provided with a through slot matched with the jetting assemblies; the steam pressure autoclave for autoclaved aerated concrete block further comprises: a steam boiler, which is provided with a gas delivery pipe, the other end of the gas delivery pipe is connected with a connecting hose, the connecting hose extends into the steam pressure autoclave and is fixedly connected with and communicates with the hollow box; and a driving assembly, which is used to drive the reciprocating screw rod to rotate by using the gas flow power when the steam boiler delivers steam to the connecting hose through the gas delivery pipe.

[0009] Preferably, the driving assembly comprises: a horizontal shaft, which is rotatably connected with the steam pressure autoclave and the gas delivery pipe and is fixedly connected with the reciprocating screw rod; and a second fan blade, which is installed on the horizontal shaft and is located in the gas delivery pipe.

[0010] Preferably, when the screw nut moves to the threaded end of the reciprocating screw rod, the jetting assemblies are located in the fixed box.

[0011] Preferably, the jetting assembly comprises: a nozzle, which is fixedly connected with and communicates with the hollow box; a rotating shaft, which is rotatably connected with the jetting assembly; and a first fan blade, which is installed on the rotating shaft.

[0012] Preferably, the utility model further comprises a heat energy recovery mechanism, which comprises: a water storage bucket, which is provided with a steam exhaust pipe between the steam pressure autoclave and the water storage bucket, and is provided with a filter box on the steam exhaust pipe; a water pump, which is connected with the water storage bucket through a water suction pipe and is connected with the steam boiler through a water delivery pipe; a water injection pipe, which is installed on the top of the water storage bucket; and a spiral pipe, which is located in the water storage bucket and is fixedly connected with and communicates with the steam exhaust pipe at the upper end.

[0013] Preferably, the heat energy recovery mechanism further comprises: an air-liquid dual-purpose pump, which is installed on the top surface of the water storage bucket, the material suction pipe of which extends into the water storage bucket and is fixedly connected with and communicates with the lower end of the spiral pipe, and the material delivery pipe of which extends into the water storage bucket.

[0014] Preferably, the heat energy recovery mechanism further comprises an even-heating assembly, which comprises: a cylinder, which is installed on the inner bottom surface of the water storage bucket, is fixedly connected with and communicates with the lower end of the material delivery pipe, and is provided with a through pipe on the side surface; a vertical rod, which penetrates through the cylinder and is rotatably connected with the cylinder; a plurality of blades, each of which is located in the cylinder and is equidistantly installed on the vertical rod; and a plurality of stirring rods, each of which is installed on the vertical rod.

[0015] Preferably, the autoclave cover is used to block the opening of the autoclave, and the opening and closing assembly is used to drive the autoclave cover to move, so that the autoclave cover is in contact with or separated from the autoclave.

[0016] In summary, due to the adoption of the above technical solutions, the present application has the following advantages:

[0017] 1、The mobile gas conveying mechanism in the present application is provided with a fixed box and a through groove, when the mobile seat approaches the end of the autoclave, the jetting assembly facing the fixed box sprays steam into the fixed box, as the screw nut approaches the end limit position of the reciprocating screw, the back pressure formed by the steam in the fixed box gradually increases, hindering the mobile seat to continue to move, slowing down the rotation speed of the reciprocating screw, completing the non-rigid deceleration of the reciprocating mechanism, avoiding the rigid collision between the screw nut and the end of the reciprocating screw, and further prolonging the service life of the reciprocating screw.

[0018] 2、The steam recycling autoclave for autoclaved aerated concrete block in the present application is provided with a mobile gas conveying mechanism, a steam boiler and a driving assembly, the steam generated by the steam boiler enters the hollow box through the gas conveying pipe and the connecting hose, and is sprayed out through a plurality of different jetting assemblies; at the same time, the steam flow in the gas conveying pipe drives the driving assembly to operate, and further drives the reciprocating screw to rotate, so that the screw nut, the mobile seat and the hollow box reciprocate, and the steam is forced to flow to both ends of the autoclave, solving the problem of uneven distribution of steam in the autoclave.

[0019] 3、The jetting assembly in the present application is provided with a nozzle, a rotating shaft and a first fan blade, the steam flow sprayed out of the nozzle drives the first fan blade to rotate, changing the jetting direction to spiral diffusion, and further solving the problem of uneven distribution of steam in the autoclave.

[0020] 4、The steam recycling autoclave for autoclaved aerated concrete block in the present application is provided with a heat energy recovery mechanism, after autoclaving is completed, the high-temperature steam in the autoclave enters the spiral pipe in the water storage bucket through the steam exhaust pipe, the steam heat is transferred to the water in the water storage bucket through the spiral pipe, the preheated water is delivered back to the steam boiler through the water pump, reducing the energy consumption of the boiler; and the gas-liquid pump sends the gas-liquid mixture in the spiral pipe into the cylinder through the conveying pipe, the high-speed airflow and the liquid impact the blades in the cylinder, driving the vertical rod and the stirring rod to rotate, mixing the low-temperature water in the water storage bucket with the high-temperature water around the spiral pipe, avoiding the stratification of the water temperature in the water storage bucket, ensuring the uniformity of the water temperature, and further reducing the energy consumption of the boiler. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0022] Figure 1 The perspective view of autoclave for autoclaved aerated concrete block in the steam circulation of the present application;

[0023] Figure 2 The schematic view of internal structure of autoclave in the present application;

[0024] Figure 3 The schematic view of assembly structure of steam boiler and mobile gas conveying mechanism in the present application;

[0025] Figure 4 The schematic view of assembly structure of screw nut, hollow box and air jet assembly in the present application;

[0026] Figure 5 The perspective view of heat energy recovery mechanism in the present application;

[0027] Figure 6 The schematic view of internal structure of water storage bucket in the present application;

[0028] Figure 7 The schematic view of assembly structure of gas-liquid pump and spiral pipe in the present application;

[0029] Figure 8 The perspective view of heat equalizing assembly in the present application;

[0030] The figure mark: 100, autoclave; 101, autoclave cover; 102, opening and closing assembly; 110, mobile gas conveying mechanism; 111, fixed plate; 112, fixed box; 113, through slot; 114, reciprocating screw; 115, sliding rod; 116, mobile seat; 117, screw nut; 118, hollow box; 119, air jet assembly; 1191, nozzle; 1192, rotating shaft; 1193, first fan blade; 200, steam boiler; 201, gas conveying pipe; 202, connecting hose; 210, driving assembly; 211, horizontal shaft; 212, second fan blade; 300, heat energy recovery mechanism; 301, water storage bucket; 302, water pump; 303, water conveying pipe; 304, water injection pipe; 305, steam exhaust pipe; 306, filter box; 307, spiral pipe; 311, gas-liquid pump; 312, material suction pipe; 313, material conveying pipe; 320, heat equalizing assembly; 321, cylinder; 322, vertical rod; 323, blade; 324, through pipe; 325, stirring rod. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] This invention is described in detail with reference to the accompanying drawings. When detailing the embodiments of this invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not to scale. Furthermore, the accompanying drawings are merely examples and should not be construed as limiting the scope of protection of this invention. In actual fabrication, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0035] Furthermore, it should be noted in the description of this invention that the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" in this invention should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; similarly, they can refer to mechanical connections, electrical connections, or direct connections, or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] Example 1: As Figures 1-3 As shown, an autoclave for steam-circulated aerated concrete blocks includes a movable gas delivery mechanism 110 installed inside the autoclave 100. A track is installed inside the autoclave 100 to facilitate the movement of a trolley carrying concrete blocks, and the track also provides support for the trolley. One side of the autoclave 100 has an opening to allow the trolley to enter and exit the autoclave 100. A lid 101 is provided at the opening of the autoclave 100 to seal the opening.

[0038] The steam autoclave 100 is further provided with an opening and closing assembly 102 for driving the autoclave cover 101 to move so as to contact or separate the autoclave cover 101 from the steam autoclave 100. The opening and closing assembly 102 comprises a support frame installed on the top of the steam autoclave 100, a bent plate hinged to the support frame, a lower end of the bent plate fixedly connected with the autoclave cover 101, and a driving motor installed on the side of the support frame for driving the bent plate to rotate, thereby driving the autoclave cover 101 to move so as to contact or separate the autoclave cover 101 from the steam autoclave 100.

[0039] The moving gas injection mechanism 110 comprises two fixed plates 111, a reciprocating screw rod 114, a moving seat 116 and a plurality of gas injection assemblies 119. The two fixed plates 111 are fixedly connected with the inner wall of the steam autoclave 100, and the lower end of each of the two fixed plates 111 is provided with a fixed box 112. The reciprocating screw rod 114 is rotatably connected with the two fixed plates 111, and a screw nut 117 is arranged on the reciprocating screw rod 114. The moving seat 116 is fixedly connected with the screw nut 117, and a hollow box 118 is installed on the bottom surface of the moving seat 116. A sliding rod 115 is further installed between the two fixed plates 111, and the sliding rod 115 penetrates through the moving seat 116 and is slidably connected with the moving seat 116. By arranging the sliding rod 115, the moving seat 116 and the screw nut 117 can be prevented from rotating with the reciprocating screw rod 114. The plurality of gas injection assemblies 119 are equidistantly arranged on the bottom surface of the hollow box 118, and the plurality of gas injection assemblies 119 are oriented in different directions. The top surface of the fixed box 112 is provided with a through slot 113 matched with the gas injection assemblies 119. When the screw nut 117 moves to the threaded end of the reciprocating screw rod 114, the gas injection assemblies 119 are located in the fixed box 112.

[0040] The steam autoclave for autoclaved aerated concrete blocks further comprises a steam boiler 200 and a driving assembly 210. The steam boiler 200 is provided with a pressure booster (not shown), the gas inlet end of the pressure booster is connected with the steam boiler 200, the gas outlet end of the pressure booster is connected with a gas conveying pipe 201, and the steam generated by the steam boiler 200 enters the gas conveying pipe 201 after passing through the pressure booster. The pressure booster is used to increase the pressure of the steam entering the gas conveying pipe 201.

[0041] The steam boiler 200 is provided with the gas conveying pipe 201, and the other end of the gas conveying pipe 201 is connected with a connecting hose 202. The connecting hose 202 extends into the steam autoclave 100 and is fixedly connected and communicated with the hollow box 118. The driving assembly 210 is used to drive the reciprocating screw rod 114 to rotate by utilizing the gas flow power when the steam is conveyed to the connecting hose 202 through the gas conveying pipe 201.

[0042] The material of the connecting hose 202 is fluorine rubber, the pressure resistance grade is ≥2.0MPa, the temperature resistance range is -20℃ to 250℃, and the rupture and leakage can be avoided.

[0043] Specifically, the concrete block to be processed is moved into the autoclave 100 by the trolley, and then the cover 101 is driven to move by the opening and closing assembly 102 to block the opening of the autoclave 100.

[0044] Then, steam is transported into the hollow box 118 through the steam boiler 200, the gas pipe 201 and the connecting hose 202, and the steam in the hollow box 118 is discharged through the plurality of jet assemblies 119 to enter the autoclave 100.

[0045] When the steam in the gas pipe 201 is transported into the connecting hose 202, the steam flow drives the driving assembly 210 to operate, and then drives the reciprocating lead screw 114 to rotate. When the reciprocating lead screw 114 rotates, the lead screw nut 117 drives the moving seat 116 to move, and then drives the hollow box 118 and the plurality of jet assemblies 119 to move, so that the jet assemblies 119 transport steam to other parts of the autoclave 100, so that the steam in the autoclave 100 is more uniform.

[0046] When the hollow box 118 is close to the fixed box 112, the steam blown by the jet assembly 119 with the jet direction towards the fixed box 112 enters the fixed box 112. When the lead screw nut 117 is close to the limit of the thread at the end of the reciprocating lead screw 114 (when the lead screw nut 117 is close to the reversing), the back pressure formed by the steam blown by the jet assembly 119 in the cavity of the fixed box 112 is larger, which hinders the movement of the jet assembly 119 and the hollow box 118, increases the resistance of the moving seat 116, and then slows down the rotation speed of the reciprocating lead screw 114, so as to avoid the rigid collision between the lead screw nut 117 and the thread at the end of the reciprocating lead screw 114 when reversing, and then avoid the deformation of the thread on the reciprocating lead screw 114, so as to improve the service life of the reciprocating lead screw 114.

[0047] As shown in Figure 3 The driving assembly 210 includes a cross shaft 211 and a second fan blade 212. The cross shaft 211 is rotationally connected with the autoclave 100 and the gas pipe 201. Specifically, the rotationally connected parts of the cross shaft 211 with the autoclave 100 and the gas pipe 201 are both provided with high-temperature-resistant mechanical seals (such as metal bellows seals) and deep groove ball bearings. The dynamic ring of the mechanical seal is in interference fit with the cross shaft 211, and the static ring is fixed with the autoclave 100 / gas pipe 201, so as to ensure that there is no steam leakage.

[0048] The cross shaft 211 is fixedly connected with the reciprocating lead screw 114; and the second fan blade 212 is located in the gas pipe 201 and is installed on the cross shaft 211.

[0049] Specifically, when the steam in the gas pipe 201 flows, the airflow drives the second fan blade 212 to rotate, and then drives the cross shaft 211 to rotate, and then drives the reciprocating lead screw 114 to rotate.

[0050] As shown in Figure 4 The jet assembly 119 comprises a nozzle 1191, a rotating shaft 1192 and a first fan blade 1193. The nozzle 1191 is fixedly connected with the hollow box 118 and communicates with the hollow box 118; the rotating shaft 1192 is rotatably connected with the jet assembly 119; and the first fan blade 1193 is installed on the rotating shaft 1192.

[0051] Specifically, when the steam in the hollow box 118 is sprayed out through the nozzle 1191, the impact of the steam flow will make the first fan blade 1193 and the rotating shaft 1192 rotate, and the first fan blade 1193 will change the steam spraying direction during the rotation, changing the steam spraying from straight line to spiral diffusion, and cooperating with the reciprocating movement of the hollow box 118, the steam can be forced to flow to the two end regions of the autoclave 100, improving the temperature uniformity in the autoclave 100.

[0052] Working principle: in specific use, the concrete block to be processed is moved into the autoclave 100 by the trolley, then the cover 101 is driven to move by the opening and closing assembly 102, so as to block the opening of the autoclave 100.

[0053] Then, water is added into the steam boiler 200, and the steam boiler 200 is started, so that the steam boiler 200 sends steam to the gas conveying pipe 201 and the connecting hose 202, and the steam in the hollow box 118 is sprayed out through the plurality of nozzles 1191, so that the steam enters the autoclave 100.

[0054] When the steam in the hollow box 118 is sprayed out through the nozzle 1191, the impact of the steam flow will make the first fan blade 1193 and the rotating shaft 1192 rotate, and the first fan blade 1193 will change the steam spraying direction during the rotation, changing the steam spraying from straight line to spiral diffusion, and cooperating with the reciprocating movement of the hollow box 118, the steam can be forced to flow to the two end regions of the autoclave 100, improving the temperature uniformity in the autoclave 100.

[0055] When the steam in the gas conveying pipe 201 is conveyed to the connecting hose 202, the steam flow will drive the second fan blade 212 to rotate, and then drive the horizontal shaft 211 to rotate, and then drive the reciprocating lead screw 114 to rotate. When the reciprocating lead screw 114 rotates, the lead screw nut 117 will drive the moving seat 116 to move, and then drive the hollow box 118 and the plurality of nozzles 1191 to move, so that the nozzles 1191 convey steam to other parts of the autoclave 100, so that the steam in the autoclave 100 is more uniform.

[0056] When the hollow box 118 is close to the fixed box 112, the steam blown by the nozzle 1191 towards the hollow box 118 will enter the fixed box 112, and as the screw nut 117 is closer to the limit of the thread at the end of the reciprocating screw 114 (the screw nut 117 is closer to the reversal), the back pressure formed by the steam blown by the nozzle 1191 in the cavity of the fixed box 112 is greater, thereby increasing the resistance of the nozzle 1191 and the hollow box 118 to continue moving, increasing the resistance of the moving seat 116 to move, thereby slowing down the rotation speed of the reciprocating screw 114, thereby avoiding the rigid collision between the screw nut 117 and the thread at the end of the reciprocating screw 114 when reversing, thereby avoiding causing the thread on the reciprocating screw 114 to deform, and facilitating to improve the service life of the reciprocating screw 114.

[0057] Embodiment 2: As shown in Figure 1 and Figures 5-8 The difference between this embodiment and embodiment 1 is that:

[0058] The autoclave for autoclaved aerated concrete blocks recycled with steam also comprises a heat energy recovery mechanism 300, which comprises a water storage bucket 301, a water pump 302, a water injection pipe 304 and a spiral pipe 307.

[0059] A steam exhaust pipe 305 is installed between the water storage bucket 301 and the autoclave 100, and a valve (not shown) is installed on the steam exhaust pipe 305. A filter box 306 is installed on the steam exhaust pipe 305, and a filter screen (not shown) is arranged inside the filter box 306. The filter screen is made of 316L stainless steel and can filter debris or impurities with a diameter of ≥0.15mm. The filter screen is detachably connected to the filter box 306 through buckles, which facilitates cleaning and replacement. A box cover is hingedly connected to the filter box 306. By arranging the filter box 306, the steam discharged from the autoclave 100 can be filtered to remove debris or impurities in the steam. The water storage bucket 301 contains water.

[0060] The water pump 302 is connected to the water storage bucket 301 through a water suction pipe, and the water pump 302 is connected to the steam boiler 200 through a water delivery pipe 303. The water injection pipe 304 is installed at the top of the water storage bucket 301. By arranging the water injection pipe 304, it is convenient to inject water into the water storage bucket 301 and also convenient to discharge gas from the water storage bucket 301. The spiral pipe 307 is located in the water storage bucket 301. The upper end of the spiral pipe 307 is fixedly connected and communicated with the steam exhaust pipe 305. The spiral pipe 307 is made of aluminum alloy.

[0061] Specifically, when steam in the autoclave 100 needs to be discharged, the valve on the steam discharge pipe 305 is opened, steam in the autoclave 100 enters the spiral pipe 307 through the steam discharge pipe 305, the steam transfers heat to the spiral pipe 307, and the spiral pipe 307 transfers heat to the water in the water storage bucket 301, thereby increasing the temperature of the water. When the steam boiler 200 needs to produce steam, the water pump 302 is started to deliver the preheated water in the water storage bucket 301 to the steam boiler 200, thereby facilitating the reduction of energy consumption required by the steam boiler 200 to produce steam.

[0062] As shown in Figures 5-7 , the heat energy recovery mechanism 300 further comprises an air-liquid pump 311, the air-liquid pump 311 is installed on the top surface of the water storage bucket 301, the air-liquid pump 311 extends into the water storage bucket 301 and is fixedly connected and communicated with the lower end of the spiral pipe 307, and the air-liquid pump 311 extends into the water storage bucket 301.

[0063] Specifically, by starting the air-liquid pump 311, steam and liquid in the spiral pipe 307 can be pumped out, thereby facilitating the steam in the autoclave 100 to enter the spiral pipe 307 through the steam discharge pipe 305.

[0064] As shown in Figure 7 and Figure 8 , the heat energy recovery mechanism 300 further comprises a heat equalizing assembly 320, the heat equalizing assembly 320 comprises a cylinder 321, a vertical rod 322, a plurality of blades 323 and a plurality of stirring rods 325. The cylinder 321 is installed on the inner bottom surface of the water storage bucket 301, the cylinder 321 is fixedly connected and communicated with the lower end of the material delivery pipe 313, and the side surface of the cylinder 321 is provided with a through pipe 324; the vertical rod 322 penetrates the cylinder 321 and is rotationally connected with the cylinder 321; the plurality of blades 323 are located in the cylinder 321, and the plurality of blades 323 are equidistantly installed on the vertical rod 322; and the plurality of stirring rods 325 are installed on the vertical rod 322. A one-way valve is installed in the through pipe 324, so that the gas or liquid in the cylinder 321 can only flow into the water storage bucket 301 in one direction.

[0065] Specifically, when the air-liquid pump 311 is running, the gas and liquid will be delivered into the cylinder 321 through the material delivery pipe 313, the impact force of the gas and liquid will drive the plurality of blades 323 to rotate, thereby driving the vertical rod 322 to rotate, and further driving the plurality of stirring rods 325 to rotate, thereby stirring the water in the water storage bucket 301, driving the low-temperature water in the water storage bucket 301 to mix with the high-temperature water around the spiral pipe 307, avoiding temperature stratification, and improving the uniformity of the outlet water temperature of the water storage tank.

[0066] Working principle: when the concrete block processing in the autoclave 100 is completed, by opening the valve on the steam exhaust pipe 305, and then starting the gas-liquid pump 311, through the suction pipe 312, the spiral pipe 307 and the steam exhaust pipe 305, the steam in the autoclave 100 is extracted, and the steam enters the spiral pipe 307, the steam will transfer heat to the spiral pipe 307, and the spiral pipe 307 will transfer heat to the water in the water storage bucket 301, thereby increasing the temperature of the water.

[0067] With the continuous operation of the gas-liquid pump 311, the steam and liquid in the spiral pipe 307 are extracted, and the steam and liquid are transported to the cylinder 321 through the material conveying pipe 313, the impact force of the gas and liquid drives the rotation of the plurality of blades 323, and then drives the rotation of the vertical rod 322, and then drives the rotation of the plurality of stirring rods 325, thereby stirring the water in the water storage bucket 301, driving the low-temperature water in the water storage bucket 301 to mix with the high-temperature water around the spiral pipe 307, avoiding water temperature stratification, and improving the uniformity of the water temperature of the water storage tank. The gas and liquid in the cylinder 321 are discharged through the pipe 324.

[0068] When the steam boiler 200 needs to produce steam, the preheated water in the water storage bucket 301 is transported into the steam boiler 200 by starting the water pump 302, thereby facilitating the reduction of energy consumption required for the steam boiler 200 to produce steam.

[0069] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

[0070] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments. Obviously, many modifications and changes can be made according to the content of the present application. The embodiments are selected and described in the present specification in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and their entire scope and equivalents.

Claims

1. A steam autoclave for autoclaved aerated concrete blocks, wherein steam is recycled, characterized in that, The utility model provides a steam pressure kettle for autoclaved aerated concrete block, which comprises a moving gas conveying mechanism installed in the steam pressure kettle, the moving gas conveying mechanism comprising: two fixed plates, each of which is fixedly connected to the inner wall of the steam pressure kettle, and each of the lower ends of the two fixed plates is provided with a fixed box; a reciprocating screw rod, which is rotatably connected to the two fixed plates and is provided with a screw nut; a moving seat, which is fixedly connected to the screw nut and is provided with a hollow box at the bottom surface thereof; a plurality of gas jet assemblies, each of which is equidistantly installed at the bottom surface of the hollow box, and the plurality of gas jet assemblies are oriented in different directions, and the top surface of the fixed box is provided with a through slot matched with the gas jet assemblies; The steam pressure kettle for autoclaved aerated concrete block with steam recycling function further comprises: a steam boiler, which is provided with a gas conveying pipe, and the other end of the gas conveying pipe is connected with a connecting hose, the connecting hose extends into the steam pressure kettle and is fixedly connected and communicated with the hollow box; a driving assembly, which is used to drive the reciprocating screw rod to rotate by using the gas flow power when the steam boiler conveys steam to the connecting hose through the gas conveying pipe.

2. The autoclave for autoclaved aerated concrete blocks according to claim 1, characterized in that, The driving assembly comprises: a horizontal shaft, which is rotatably connected to the steam pressure kettle and the gas conveying pipe and is fixedly connected to the reciprocating screw rod; a second fan blade, which is located in the gas conveying pipe and is installed on the horizontal shaft.

3. The autoclave for autoclaved aerated concrete blocks according to claim 1, characterized in that, When the screw nut moves to the threaded end of the reciprocating screw rod, the gas jet assemblies are located in the fixed box.

4. The autoclave for autoclaved aerated concrete blocks according to claim 3, characterized in that, The gas jet assembly comprises: a nozzle, which is fixedly connected and communicated with the hollow box; a rotating shaft, which is rotatably connected to the gas jet assembly; a first fan blade, which is installed on the rotating shaft.

5. The autoclave for autoclaved aerated concrete blocks according to claim 1, characterized in that, The utility model further comprises a heat energy recovery mechanism, which comprises: a water storage bucket, which is provided with a steam exhaust pipe between the steam pressure kettle, and the steam exhaust pipe is provided with a filter box; a water pump, which is connected with the water storage bucket through a water suction pipe and is connected with the steam boiler through a water conveying pipe; a water injection pipe, which is installed at the top of the water storage bucket; a spiral pipe, which is located in the water storage bucket and is fixedly connected and communicated with the steam exhaust pipe at the upper end thereof.

6. The autoclave for autoclaved aerated concrete blocks according to claim 5, characterized in that, The heat energy recovery mechanism further comprises: a gas-liquid dual-purpose pump, which is installed at the top surface of the water storage bucket, the material suction pipe of which extends into the water storage bucket and is fixedly connected and communicated with the lower end of the spiral pipe, and the material conveying pipe of which extends into the water storage bucket.

7. The autoclave for autoclaved aerated concrete blocks according to claim 6, characterized in that, The heat energy recovery mechanism further comprises an even-heating assembly, which comprises: a cylinder, which is installed at the inner bottom surface of the water storage bucket, is fixedly connected and communicated with the lower end of the material conveying pipe, and is provided with a through pipe at the side surface thereof; a vertical rod, which penetrates through the cylinder and is rotatably connected to the cylinder; a plurality of blades, each of which is located in the cylinder and is equidistantly installed on the vertical rod; a plurality of stirring rods, each of which is installed on the vertical rod.

8. The autoclave for autoclaved aerated concrete blocks according to claim 1, characterized in that, The utility model further comprises: a kettle cover, which is used to block the opening of the steam pressure kettle; an opening and closing assembly, which is used to drive the kettle cover to move so that the kettle cover is in contact with or separated from the steam pressure kettle.

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