A waste heat recycling equipment for iron phosphate production

Abstract

This application relates to the field of ferric phosphate production technology and discloses a waste heat recovery device for ferric phosphate production, including a support frame, a reactor, and a feed inlet. The reactor is installed on top of the support frame, and the feed inlet is also installed on top of the reactor. A waste heat recovery mechanism is provided on the outside of the support frame. The waste heat recovery mechanism includes a storage tank, an inlet pipe, and a heat-conducting component. The storage tank is bolted to the outer surface of the reactor, the inlet pipe is installed on the outer surface of the storage tank, and the heat-conducting component is installed on the outer wall of the reactor. The heat-conducting component includes a connecting plate, a heat-conducting rod, a heat-conducting plate, a heat sink, and a heat-conducting groove. This waste heat recovery device for ferric phosphate production achieves rapid recovery of waste heat generated by ferric phosphate through the heat conduction of the heat-conducting rod, heat-conducting plate, and heat sink. Some of the recovered hot water can be introduced into the reactor, thereby realizing waste heat recycling, improving waste heat recovery efficiency, and reducing resource waste.

Description

Technical Field

[0001] This application relates to the field of ferric phosphate production technology, specifically to a waste heat recovery device for ferric phosphate production. Background Technology

[0002] Ferric phosphate, also known as high-ferric phosphate or orthophosphate, is an inorganic compound with the chemical formula FePO4. It is a white or light red crystalline powder, soluble in hydrochloric acid and sulfuric acid, but insoluble in cold water and nitric acid. It is mainly used in the food industry as a nutritional supplement (iron fortifier), particularly in bread, and also as a feed additive. The synthesis reaction of phosphoric acid with an iron source (such as ferrous sulfate) is usually exothermic, with reaction temperatures potentially ranging from 60°C to 90°C or even higher. During the production of ferric phosphate, the heat generated can be recovered through a waste heat recovery device.

[0003] Existing waste heat recovery devices for ferric phosphate production recover waste heat generated by ferric phosphate by introducing water into the cavity inside the reactor. However, directly recovering the heat generated by ferric phosphate through water results in a slow waste heat recovery rate.

[0004] Therefore, there is an urgent need for a waste heat recovery device for iron phosphate production to solve the problem of slow waste heat recovery rate. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a waste heat recovery device for ferric phosphate production, which has the advantage of improving the waste heat recovery rate and solves the problem of slow waste heat recovery rate.

[0006] To achieve the above objectives, this application provides the following technical solution: a waste heat recovery device for iron phosphate production, comprising a support frame, a reaction vessel and a feed inlet, wherein the reaction vessel is installed on the top of the support frame, the feed inlet is installed on the top of the reaction vessel, a waste heat recovery mechanism is provided on the outside of the support frame, and a stirring mechanism is provided inside the reaction vessel;

[0007] The waste heat recovery mechanism includes a liquid storage tank, a liquid inlet pipe, and a heat-conducting component. The liquid storage tank is fixedly connected to the outer surface of the reactor by bolts. The liquid inlet pipe is installed on the outer surface of the liquid storage tank. The heat-conducting component is installed on the outer wall of the reactor. The heat-conducting component includes a connecting piece, a heat-conducting rod, a heat-conducting plate, a heat sink, and a heat-conducting groove. The connecting piece is fixedly connected to the outer surface of the reactor by bolts. The heat-conducting rod is welded to the inner side of the connecting piece. The heat-conducting plate and the heat sink are welded to the outer surfaces of both ends of the heat-conducting rod. The heat-conducting groove is opened on the inner side of the heat-conducting rod.

[0008] The heat inside the reactor is conducted to the heat sink through the heat-conducting rod and heat-conducting plate. The heat sink heats the water between the reactor and the storage tank. Through the heat conduction of the heat-conducting rod, heat-conducting plate and heat sink, the waste heat generated by ferric phosphate can be quickly recovered. Some of the recovered hot water can be introduced into the reactor, thereby realizing the waste heat recycling, improving the waste heat recovery efficiency and reducing resource waste.

[0009] Preferably, the liquid storage tank is equipped with a temperature sensor.

[0010] Preferably, the heat-conducting plate is a square plate, the heat sink is a triangular plate, and several groups of the heat-conducting plates and heat sinks are distributed in a circular pattern on the outer surface of the heat-conducting rod.

[0011] Preferably, several groups of the heat-conducting elements are evenly distributed on the outer surface of the reactor.

[0012] Preferably, a water pump is installed on the top of the support frame. The water pump is connected to the inside of the liquid storage tank through a pipe. The water pump is also connected to an electric three-way ball valve through a pipe. The electric three-way ball valve is connected to the inside of the reaction vessel through a connecting pipe.

[0013] Preferably, a liquid level sensor is installed on the top of the reactor.

[0014] Preferably, the stirring mechanism includes a driving device, a connecting rod, a support plate, and stirring blades. The driving device is installed on the top of the reactor. One end of the connecting rod is fixedly connected to the output end of the driving device. Both ends of the support plate are welded to the outer side of the connecting rod. The stirring blades are fixedly connected to the support plate by bolts.

[0015] In summary, this application includes at least one of the following beneficial effects:

[0016] 1. This waste heat recovery equipment for ferric phosphate production involves introducing water between the reactor and the storage tank during ferric phosphate production. Heat from inside the reactor is transferred to heat sinks via heat-conducting rods and fins. The heat sinks heat the water between the reactor and the storage tank. Through the heat conduction of the heat-conducting rods, fins, and heat sinks, the waste heat generated by the ferric phosphate is rapidly recovered. Part of the recovered hot water can be introduced back into the reactor, thus achieving waste heat recycling, improving waste heat recovery efficiency, and reducing resource waste.

[0017] 2. In this waste heat recovery equipment for ferric phosphate production, when the connecting rod rotates, the connecting rod drives the support plate to rotate, and when the support plate rotates, it drives the stirring blade to rotate. When the stirring blade rotates, it pushes the solution inside the reactor to the outside, so that the waste heat in the solution inside the reactor can be fully transferred to the water between the storage tank and the reactor, thereby allowing the waste heat to be fully recovered and improving the efficiency of waste heat recovery. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the waste heat recycling equipment in this application;

[0019] Figure 2 This is a diagram of the internal structure of the reactor in this application;

[0020] Figure 3 This is an overall structural diagram of the heat-conducting component in this application;

[0021] Figure 4 This is a diagram showing the connection structure of the heat-conducting rod, heat-conducting plate, and heat-conducting groove in this application.

[0022] The components are as follows: 1. Support frame; 111. Liquid storage tank; 112. Liquid inlet pipe; 113. Heat-conducting component; 114. Connecting piece; 115. Heat-conducting rod; 116. Heat-conducting sheet; 117. Heat sink; 118. Heat-conducting groove; 119. Temperature sensor; 2. Reactor; 211. Water pump; 212. Electric three-way ball valve; 213. Connecting pipe; 214. Liquid level sensor; 3. Feed inlet; 311. Drive device; 312. Connecting rod; 313. Support plate; 314. Stirring blade. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1-4 A waste heat recovery device for ferric phosphate production includes a support frame 1, a reaction vessel 2, and a feed inlet 3. The reaction vessel 2 is installed on the top of the support frame 1 and is controlled by a control panel. The feed inlet 3 is installed on the top of the reaction vessel 2, and acid and ferrous sulfate are introduced into the reaction vessel 2 through the feed inlet 3 to react. A waste heat recovery mechanism is provided on the outside of the support frame 1, and a stirring mechanism is provided inside the reaction vessel 2.

[0025] Specifically, the waste heat recovery mechanism includes a storage tank 111, an inlet pipe 112, and a heat-conducting component 113. The storage tank 111 is fixedly connected to the outer surface of the reactor 2 by bolts. The inlet pipe 112 is installed on the outer surface of the storage tank 111. The heat-conducting component 113 is installed on the outer wall of the reactor 2. The heat-conducting component 113 includes a connecting piece 114, a heat-conducting rod 115, a heat-conducting plate 116, a heat sink 117, and a heat-conducting groove 118. The connecting piece 114 is fixedly connected to the outer surface of the reactor 2 by bolts. The heat-conducting rod 115... 15 is welded to the inner side of the connecting piece 114. The heat-conducting plate 116 and the heat sink 117 are welded to the outer surfaces of both ends of the heat-conducting rod 115. The heat-conducting plate 116 is a square plate and the heat sink 117 is a triangular plate. Several sets of heat-conducting plates 116 and heat sink 117 are located on the outer surface of the heat-conducting rod 115 in a circular distribution. The heat-conducting groove 118 is opened on the inner side of the heat-conducting rod 115. The liquid storage tank 111 is equipped with a temperature sensor 119. Several sets of heat-conducting components 113 are located on the outer surface of the reaction vessel 2 in a uniform distribution.

[0026] Through the above technical solution, when ferric phosphate is generated inside the reactor 2, water is introduced between the reactor 2 and the storage tank 111 through the liquid inlet pipe 112. The heat inside the reactor 2 is conducted to the heat sink 117 through the heat-conducting rod 115 and the heat-conducting plate 116. The heat sink 117 heats the water between the reactor 2 and the storage tank 111. Through the heat conduction of the heat-conducting rod 115, the heat-conducting plate 116 and the heat sink 117, the waste heat generated by the ferric phosphate is quickly recovered. Part of the recovered hot water can be introduced into the reactor 2, thereby realizing the waste heat recycling, improving the waste heat recovery efficiency and reducing resource waste. The heat-conducting rod 115, the heat-conducting plate 116 and the heat sink 117 are made of metals that are easy to conduct heat.

[0027] Specifically, a water pump 211 is installed on the top of the support frame 1. The water pump 211 is connected to the inside of the liquid storage tank 111 through a pipe. The water pump 211 is also connected to the electric three-way ball valve 212 through a pipe. The electric three-way ball valve 212 is connected to the inside of the reaction vessel 2 through a connecting pipe 213. A liquid level sensor 214 is installed on the top of the reaction vessel 2.

[0028] Through the above technical solution, when the liquid level sensor 214 detects that the water level inside the reactor 2 is too low, the water pump 211 is started. The heated water is guided by the electric three-way ball valve 212 through the water pump 211 and enters the reactor 2 for recycling. When the water level inside the reactor 2 reaches the predetermined position, the electric three-way ball valve 212 discharges the water through the pipeline for subsequent processing of ferric phosphate, realizing the recycling and reuse of waste heat.

[0029] Specifically, the stirring mechanism includes a drive device 311, a connecting rod 312, a support plate 313, and a stirring blade 314. The drive device 311 is installed on the top of the reactor 2. One end of the connecting rod 312 is fixedly connected to the output end of the drive device 311. Both ends of the support plate 313 are welded to the outer rod body of the connecting rod 312. The stirring blade 314 is fixedly connected to the support plate 313 by bolts.

[0030] Through the above technical solution, the drive device 311 is started, which drives the connecting rod 312 to rotate. The connecting rod 312 drives the support plate 313 to rotate. When the support plate 313 rotates, it drives the stirring blade 314 to rotate. When the stirring blade 314 rotates, it pushes the solution inside the reactor 2 to the outside, so that the residual heat in the solution inside the reactor 2 can be fully transferred to the water between the storage tank 111 and the reactor 2, thereby allowing the residual heat to be fully recovered and improving the efficiency of residual heat recovery.

[0031] During use, the heat inside the reactor 2 is conducted to the heat sink 117 through the heat-conducting rod 115 and heat-conducting plate 116. The heat sink 117 heats the water between the reactor 2 and the storage tank 111. Through the heat conduction of the heat-conducting rod 115, heat-conducting plate 116 and heat sink 117, the waste heat generated by the iron phosphate is quickly recovered. Some of the recovered hot water can be introduced into the reactor 2, thereby realizing the waste heat recycling, improving the waste heat recovery efficiency and reducing resource waste.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for ferric phosphate production, comprising a support frame (1), a reaction vessel (2), and a feed inlet (3), characterized in that: The reactor (2) is installed on the top of the support frame (1), the feed port (3) is installed on the top of the reactor (2), a waste heat recovery mechanism is provided on the outside of the support frame (1), and a stirring mechanism is provided inside the reactor (2); The waste heat recovery mechanism includes a liquid storage tank (111), an inlet pipe (112), and a heat-conducting component (113). The liquid storage tank (111) is fixedly connected to the outer surface of the reactor (2) by bolts. The inlet pipe (112) is installed on the outer surface of the liquid storage tank (111). The heat-conducting component (113) is installed on the outer wall of the reactor (2). The heat-conducting component (113) includes a connecting piece (114), a heat-conducting rod (115), a heat-conducting plate (116), a heat sink (117), and a heat-conducting groove (118). The connecting piece (114) is fixedly connected to the outer surface of the reactor (2) by bolts. The heat-conducting rod (115) is welded to the inner side of the connecting piece (114). The heat-conducting plate (116) and the heat sink (117) are welded to the outer surfaces of both ends of the heat-conducting rod (115). The heat-conducting groove (118) is opened on the inner side of the heat-conducting rod (115).

2. The waste heat recovery equipment for ferric phosphate production according to claim 1, characterized in that: The liquid storage tank (111) is equipped with a temperature sensor (119).

3. The waste heat recovery equipment for ferric phosphate production according to claim 1, characterized in that: The heat-conducting plate (116) is a square plate, and the heat sink (117) is a triangular plate. Several groups of the heat-conducting plates (116) and heat sinks (117) are distributed in a circular pattern on the outer surface of the heat-conducting rod (115).

4. The waste heat recovery equipment for ferric phosphate production according to claim 1, characterized in that: Several sets of the heat-conducting components (113) are evenly distributed on the outer surface of the reactor (2).

5. The waste heat recovery equipment for ferric phosphate production according to claim 1, characterized in that: A water pump (211) is installed on the top of the support frame (1). The water pump (211) is connected to the inside of the liquid storage tank (111) through a pipe. The water pump (211) is connected to the electric three-way ball valve (212) through a pipe. The electric three-way ball valve (212) is connected to the inside of the reaction vessel (2) through a connecting pipe (213).

6. The waste heat recovery equipment for ferric phosphate production according to claim 5, characterized in that: A liquid level sensor (214) is installed on the top of the reactor (2).

7. The waste heat recovery equipment for ferric phosphate production according to claim 1, characterized in that: The stirring mechanism includes a driving device (311), a connecting rod (312), a support plate (313), and a stirring blade (314). The driving device (311) is installed on the top of the reactor (2). One end of the connecting rod (312) is fixedly connected to the output end of the driving device (311). Both ends of the support plate (313) are welded to the rod body on the outside of the connecting rod (312). The stirring blade (314) is fixedly connected to the support plate (313) by bolts.

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