An aerated brick production device facilitating steam recovery

Abstract

The utility model relates to a kind of aerated brick production device convenient for steam recovery, including steam autoclave body, the steam autoclave body top's outlet pipe is connected with waste heat recovery component, the drain pipe of the steam autoclave body bottom is connected with secondary evaporation component, the waste heat recovery component includes waste heat recovery ware, the secondary evaporation component includes pressure-reducing valve and recovery tank, high-temperature steam discharged after completing steam curing process in steam autoclave body is introduced into waste heat recovery ware, for heating domestic water or factory production water, effectively avoid energy waste caused by steam direct discharge, simultaneously, high-temperature condensate produced in steam autoclave body interior is transported by pipeline, after pressure reduction by pressure-reducing valve, into recovery tank, under the action of pressure sudden drop, part high-temperature liquid is instantaneously flashed into low-pressure steam, is transported to the heat section required by exhaust pipe and is reused, and the condensate not evaporated is discharged by bottom liquid outlet pipe, is recycled for production system after processing.

Description

Technical Field

[0001] This utility model relates to the field of aerated concrete block production technology, specifically to an aerated concrete block production device that facilitates steam recovery. Background Technology

[0002] Aerated concrete blocks, also known as autoclaved aerated concrete blocks, are a new type of wall material made from stone powder, cement, and lime as the main raw materials. They are prepared by casting, cutting, and curing under high pressure with steam. The autoclave is a key piece of equipment in the production of aerated concrete blocks. It provides the necessary heat and pressure through high-temperature and high-pressure steam, which promotes the full hydration reaction of silicate materials, thereby giving aerated concrete blocks high strength and excellent physical properties. In the autoclave, steam is not only a heating medium, but also participates in the curing process of the blocks, thus ensuring stable product quality.

[0003] In aerated concrete block production workshops, multiple autoclaves are usually configured to work together. However, after the autoclaves complete the curing process, a large amount of high-temperature and high-pressure steam remains inside. Most companies directly discharge this steam into the atmosphere, resulting in serious waste of heat and water resources. At the same time, the high-temperature condensate generated during operation is not effectively collected and reused. It is often directly discharged into the drainage system after filtration, which further aggravates heat loss, reduces energy efficiency, and increases production costs and environmental burden. Utility Model Content

[0004] The purpose of this invention is to provide an aerated concrete block production device that facilitates steam recovery, thereby overcoming the shortcomings of the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An aerated concrete block production apparatus that facilitates steam recovery includes an autoclave body. An outlet pipe at the top of the autoclave body is connected to a waste heat recovery assembly, and a drain pipe at the bottom of the autoclave body is connected to a secondary evaporation assembly. The waste heat recovery assembly includes a waste heat recovery unit, and the secondary evaporation assembly includes a pressure reducing valve and a recovery tank. An inlet pipe is located on the right side of the recovery tank, a drain pipe is located at the bottom of the recovery tank, and an exhaust pipe is located at the top of the recovery tank. The drain pipe at the bottom of the autoclave body is connected to the right side of the pressure reducing valve via a pipe, and the right side of the pressure reducing valve is connected to the inlet pipe via a first transmission pipe.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the waste heat recovery assembly also includes a second transmission pipe, which is located on the left side of the waste heat recovery unit and is connected to the exhaust pipe at the top of the autoclave body.

[0009] Furthermore, a nano-aerogel coating is provided on the outer side of the second transmission tube.

[0010] Furthermore, a digital barometer communicating with the interior of the recycling tank is installed on the front side of the tank.

[0011] Furthermore, a safety valve is connected to the left side of the recycling tank.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0013] After the autoclave completes the steam curing process, the high-temperature steam discharged is introduced into the waste heat recovery unit to heat domestic water or production water in the factory area, effectively avoiding energy waste caused by direct steam discharge. At the same time, the high-temperature condensate generated inside the autoclave is transported through pipelines, and after being depressurized by a pressure reducing valve, it enters the recovery tank. Under the action of the sudden pressure drop, some of the high-temperature liquid flashes into low-pressure steam, which is transported to the heat-requiring section through the exhaust pipe for reuse. The unevaporated condensate is discharged from the bottom liquid outlet pipe, and after treatment, it is reused in the production system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the aerated brick production device of this utility model, which facilitates steam recovery, from one perspective.

[0015] Figure 2 This is a schematic diagram of the structure of the aerated brick production device for easy steam recovery according to this utility model from another perspective.

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the aerated concrete block production device that facilitates steam recovery according to this utility model.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Autoclave body; 2. Waste heat recovery assembly; 201. Waste heat recovery unit; 202. Second transmission pipe; 3. Secondary evaporation assembly; 301. Pressure reducing valve; 302. Recovery tank; 303. Liquid inlet pipe; 304. Liquid outlet pipe; 305. Exhaust pipe; 306. First transmission pipe; 307. Digital barometer; 308. Safety valve. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1-3 As shown, this utility model provides an aerated concrete block production device that facilitates steam recovery, including an autoclave body 1, an exhaust pipe at the top of the autoclave body 1 connected to a waste heat recovery component 2, and a drain pipe at the bottom of the autoclave body 1 connected to a secondary evaporation component 3. The waste heat recovery component 2 includes a waste heat recovery device 201, which is a heat pipe waste heat recovery device that can effectively recover heat from steam and transfer the heat to the water medium for heating.

[0021] The secondary evaporation assembly 3 includes a pressure reducing valve 301 and a recovery tank 302. An inlet pipe 303 is provided on the right side of the recovery tank 302, a drain pipe 304 is provided at the bottom of the recovery tank 302, and an exhaust pipe 305 is provided at the top of the recovery tank 302. The inlet pipe 303, the drain pipe 304, and the exhaust pipe 305 are all installed on the outside of the recovery tank 301 by welding. The top of the recovery tank 302 is also welded with a hanging lug (not marked in the figure) to facilitate the lifting of the recovery tank 302 and its transportation to a designated location in the production workshop.

[0022] The vent pipe at the top of the autoclave body 1, the drain pipe at the bottom of the autoclave body 1, the liquid inlet pipe 303, the liquid outlet pipe 304, and the exhaust pipe 305 are all controlled by solenoid valves (different types of solenoid valves, such as steam solenoid valves, are selected according to the requirements of the pipeline to better adapt to the use of the entire device).

[0023] The bottom drain pipe of the autoclave body 1 is connected to the right side of the pressure reducing valve 301 through a pipeline. The right side of the pressure reducing valve 301 is connected to the liquid inlet pipe 303 through the first transmission pipe 306. All connections between the pipelines are made through flanges. The flange connection method has the advantages of convenient installation and disassembly, good sealing performance, and strong pressure bearing capacity. It can effectively adapt to the high temperature and high pressure working environment, and at the same time facilitates system maintenance and repair.

[0024] The high-temperature condensate generated inside the autoclave body 1 is discharged through the drain pipe at the bottom and transported under the action of the first transmission pipe 306. It then passes through the pressure reducing valve 301 and is subsequently transported to the recovery tank 302. Under the action of the sudden pressure drop, some of the high-temperature liquid flashes into low-pressure steam and is transported through the exhaust pipe 305, while the unevaporated condensate is discharged through the bottom liquid outlet pipe for recycling.

[0025] Furthermore, since the mortgaged steam also has a certain temperature, it can be connected to the interior of the waste heat recovery unit 201 through a pipeline, further improving the recycling effect.

[0026] The waste heat recovery assembly 2 also includes a second transmission pipe 202, which is located on the left side of the waste heat recovery unit 201 and is connected to the gas outlet pipe at the top of the autoclave body 1.

[0027] With this configuration, the high-temperature steam inside the autoclave body 1 is transported through the combination of the exhaust pipe and the second transmission pipe 202, and the second transmission pipe 202 is also connected to the waste heat recovery unit 201 through a flange to ensure long-term use.

[0028] The outer side of the second transmission tube 202 is coated with a nano-aerogel layer.

[0029] This design reduces heat loss when the second transmission pipe 202 transports steam, and a waterproof and wear-resistant protective layer can be provided on the outside of the second transmission pipe 202 to ensure its performance when exposed to air for a long time.

[0030] The front of the recycling tank 302 is equipped with a digital barometer 307 that is connected to its interior.

[0031] With this setup, the digital barometer 307 can display the pressure value inside the recovery tank 302 in real time. Operators can use it to monitor the pressure changes inside the tank at any time to ensure that the pressure is within the normal range. In addition, the digital barometer 307 also has an early warning function. When the pressure exceeds the set safety range, it can promptly issue an alarm sound to remind the operator and prevent safety accidents caused by excessive pressure.

[0032] The left side of the recycling tank 302 is connected to a safety valve 308.

[0033] With this configuration, the safety valve 308 can automatically respond to pressure changes in the recovery tank 302 without human intervention, promptly release excess steam or gas, maintain stable pressure inside the tank, and ensure the stability of the entire device.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An autoclaved aerated concrete production plant facilitating steam recovery, comprising an autoclave body (1), characterized in that: The exhaust pipe at the top of the autoclave body (1) is connected to the waste heat recovery assembly (2), and the drain pipe at the bottom of the autoclave body (1) is connected to the secondary evaporation assembly (3). The waste heat recovery assembly (2) includes a waste heat recovery device (201), and the secondary evaporation assembly (3) includes a pressure reducing valve (301) and a recovery tank (302). The right side of the recovery tank (302) is provided with an inlet pipe (303), the bottom of the recovery tank (302) is provided with a drain pipe (304), and the top of the recovery tank (302) is provided with an exhaust pipe (305). The drain pipe at the bottom of the autoclave body (1) is connected to the right side of the pressure reducing valve (301) through a pipe, and the right side of the pressure reducing valve (301) is connected to the inlet pipe (303) through a first transmission pipe (306).

2. An aerated block production apparatus facilitating steam recovery as claimed in claim 1 wherein: The waste heat recovery assembly (2) also includes a second transmission pipe (202), which is located on the left side of the waste heat recovery unit (201) and is connected to the exhaust pipe at the top of the autoclave body (1).

3. An apparatus for producing aerated blocks with ease of steam recovery as claimed in claim 2 wherein: The outer side of the second transmission tube (202) is provided with a nano-aerogel coating layer.

4. An apparatus for producing aerated blocks with ease of steam recovery as claimed in claim 1 wherein: A digital barometer (307) connected to the front of the recycling tank (302) is provided.

5. An apparatus for producing aerated concrete blocks with ease of steam recovery as claimed in claim 1 wherein: A safety valve (308) is connected to the left side of the recycling tank (302).

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