Waste heat recovery device for monoammonium phosphate production

Abstract

The utility model relates to the technical field of monoammonium phosphate production, and discloses a waste heat recovery device for monoammonium phosphate production, which comprises a reaction kettle for producing monoammonium phosphate, the right side of the outer wall of the reaction kettle is fixedly connected with an exhaust pipeline, the top of the exhaust pipeline is inserted with a filter, and the top sides of the front and rear sides of the filter are provided with limiting grooves; the sides, away from each other, of the inner walls of the two limiting grooves are connected with the top side of the inner wall of the exhaust pipeline through limiting assemblies so as to limit the filter, the bottom of the exhaust pipeline is fixedly connected with a water storage tank, and the bottom side of the inner wall of the exhaust pipeline is connected with the inner wall of the water storage tank through a recycling assembly. According to the utility model, the adjusting knob is rotated to drive the limiting slide block to slide out of the limiting groove, so that the filter is released from being fixed, and the filter is taken out to be replaced and cleaned. After the filter is replaced and cleaned, a new filter is inserted back to the reverse adjusting knob of the exhaust pipeline, and the filter is limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to monoammonium phosphate production technical field especially relates to a kind of waste heat recovery devices of monoammonium phosphate production. BACKGROUND

[0002] Monoammonium phosphate, chemical agent, also known as ammonium dihydrogen phosphate, is a white crystal, chemical formula is NH4H2PO4, decomposes into ammonium metaphosphate (NH4PO3) when heated, can be made by ammonia and phosphoric acid reaction, mainly used as fertilizer and fire retardant of wood, paper, fabric, also used in pharmaceutical and ruminant feed additive. In the heating process of slurry after wet-process phosphoric acid and liquid ammonia neutralization, steam heating mode is often used. Hot steam is passed into slurry pipeline or specific heating equipment, to increase the temperature of slurry, to promote water evaporation, to achieve the concentration required for subsequent drying process.

[0003] Monoammonium phosphate will produce a large amount of waste gas during production, which will pollute the environment if directly discharged, so a filter is usually used to filter before discharge, and the filter needs to be cleaned after long-term use. The existing filter is relatively troublesome to disassemble, affecting work efficiency.

[0004] Therefore, in view of the existing filter disassembly problem, a monoammonium phosphate production waste heat recovery device is needed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to solve the problem of inconvenient disassembly of the filter in the prior art, the present application provides a waste heat recovery device for monoammonium phosphate production, which drives the limiting slide to slide out of the limiting groove by rotating the adjusting knob, releases the fixation of the filter, and takes out the filter for replacement and cleaning. After the filter is replaced and cleaned, the new filter is inserted back into the exhaust pipe in the opposite direction of the adjusting knob, and the filter is limited.

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A waste heat recovery device for monoammonium phosphate production, comprising a reaction kettle for producing monoammonium phosphate, an exhaust pipe is fixedly connected to the right side of the outer wall of the reaction kettle, a filter is inserted into the top of the exhaust pipe, limiting grooves are formed on the top sides of the front and rear sides of the filter, and the inner walls of the two limiting grooves are connected to the top side of the inner wall of the exhaust pipe through a limiting assembly for limiting the filter, a water storage tank is fixedly connected to the bottom of the exhaust pipe, the inner wall of the water storage tank is connected to the bottom side of the inner wall of the exhaust pipe through a recovery assembly, a transmission pipe is fixedly connected to the left side of the water storage tank, and the left end of the transmission pipe is fixedly connected to the right side of the outer wall of the reaction kettle.

[0008] As a further improvement of the utility model, the limiting assembly comprises a two-way screw rod rotatably connected to the top side of the inner wall of the exhaust pipeline, and the outer wall of the two-way screw rod is threadedly connected with two limiting sliding blocks, and the proximal side of the two limiting sliding blocks is inserted into the distal side of the inner wall of the two limiting grooves.

[0009] As a further improvement of the utility model, the limiting sliding block is fixedly connected with a limiting block on the right side, and the left side of the limiting block is abutted against the right side of the filter.

[0010] As a further improvement of the utility model, the rear side of the exhaust pipeline is rotatably connected with an adjusting knob, and the rear end of the two-way screw rod is fixedly connected with the front side of the adjusting knob.

[0011] As a further improvement of the utility model, the outer wall of the adjusting knob is provided with anti-skid stripes.

[0012] As a further improvement of the utility model, the recovery assembly comprises five heat transfer rods fixedly connected to the bottom side of the inner wall of the exhaust pipeline, and the inner wall of the water storage tank is fixedly connected with a spiral heating rod, and the bottom side of the heat transfer rod is fixedly connected with the top side of the spiral heating rod.

[0013] As a further improvement of the utility model, the heat transfer rod and the spiral heating rod are both prepared from carbon-tungsten-copper composite material as raw material.

[0014] Compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0015] 1、In the utility model, the limiting sliding block is driven to slide out of the limiting groove by rotating the adjusting knob, the fixing of the filter is released, the filter is taken out for replacement and cleaning, after the replacement and cleaning of the filter are completed, the new filter is inserted back into the exhaust pipeline in the opposite direction of the adjusting knob, the filter is limited, and the replacement of the filter is faster.

[0016] 2、In the utility model, the heat transfer rod is heated after the waste gas is filtered by the filter, the spiral heating rod heats the water in the water storage tank, the water in the water storage tank generates water vapor after being heated, the water vapor heats the reaction kettle through the transmission pipeline, and the waste gas discharged by the reaction kettle is recycled and utilized, thereby saving energy. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A perspective view of a waste heat recovery device for monoammonium phosphate production is provided for the utility model;

[0018] Figure 2 A filter schematic view of a waste heat recovery device for monoammonium phosphate production is provided for the utility model;

[0019] Figure 3The utility model provides a kind of phosphoric monammonium production's waste heat recovery device's bidirectional screw schematic diagram;

[0020] Figure 4 The utility model provides a kind of phosphoric monammonium production's waste heat recovery device's spiral heating rod schematic diagram.

[0021] Legend:

[0022] 1, reaction kettle;2, exhaust duct;3, water storage tank;4, transmission pipeline;5, filter;6, heat transfer rod;7, adjusting knob;8, bidirectional screw;9, limit slide;10, limit block;11, spiral heating rod. Specific embodiments

[0023] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0025] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the application is used, only for the convenience of describing the present application and simplifying the description, and it does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, if the terms "first", "second" and the like appear in the description of the present application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] In addition, if the terms "horizontal", "vertical" and the like appear in the description of the present application, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0028] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, if the terms "set", "install", "connect", "connect" appear, it should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication 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.

[0029] Embodiment 1:

[0030] Reference Figures 1-4 A waste heat recovery device for producing monoammonium phosphate, comprising a reaction kettle 1 for producing monoammonium phosphate, an exhaust pipe 2 fixedly connected to the right side of the outer wall of the reaction kettle 1, a filter 5 inserted into the top of the exhaust pipe 2, limit grooves are formed on the top side of the front and rear sides of the filter 5, a bidirectional screw 8 is rotatably connected to the top side of the inner wall of the exhaust pipe 2, two limit sliding blocks 9 are threadedly connected to the outer wall of the bidirectional screw 8, the two limit sliding blocks 9 are inserted into the inner walls of the two limit grooves on the same side, a limit block 10 is fixedly connected to the right side of the limit sliding block 9, and the left side of the limit block 10 abuts against the right side of the filter 5, so as to limit the filter 5, and an adjusting knob 7 is rotatably connected to the rear side of the exhaust pipe 2, the rear end of the bidirectional screw 8 is fixedly connected to the front side of the adjusting knob 7, and anti-skid stripes are formed on the outer wall of the adjusting knob 7;

[0031] Specifically, when the filter 5 needs to be replaced and cleaned after long-term use, the adjusting knob 7 is rotated, the adjusting knob 7 drives the bidirectional screw 8 to rotate, the bidirectional screw 8 drives the limit sliding block 9 to slide out of the limit groove, and the fixing of the filter 5 is released, so that the filter 5 can be taken out for replacement and cleaning. After the filter 5 is replaced and cleaned, the new filter 5 is inserted back into the exhaust pipe 2 for work, the adjusting knob 7 is adjusted in the opposite direction, the bidirectional screw 8 drives the limit sliding block 9 to slide into the limit groove, and the limit block 10 abuts against the filter 5 to limit it;

[0032] Embodiment 2:

[0033] Reference Figures 1-4 The bottom of the exhaust pipe 2 is fixedly connected with a water storage tank 3, the bottom side of the inner wall of the exhaust pipe 2 is fixedly connected with five heat transfer rods 6, the inner wall of the water storage tank 3 is fixedly connected with a spiral heating rod 11, the bottom side of the heat transfer rod 6 is fixedly connected with the top side of the spiral heating rod 11, the left side of the water storage tank 3 is fixedly connected with a transmission pipe 4, the left end of the transmission pipe 4 is fixedly connected with the right side of the outer wall of the reaction kettle 1, and the heat transfer rod 6 and the spiral heating rod 11 are both prepared from carbon-tungsten-copper composite material.

[0034] Specific, waste gas from the filter 5 after filtering from the exhaust pipe 2, the exhaust gas to heat the heat transfer rod 6, heat transfer rod 6 heating to the spiral heating rod 11, spiral heating rod 11 to the water in the water tank 3 heating, the water in the water tank 3 heating after the water vapor, through the transmission pipeline 4 to the reactor 1 again heating, the reactor 1 exhaust gas recycling to save energy. Carbon tungsten copper composite material has the advantages of carbon, tungsten, copper three kinds of materials, has good thermal conductivity and high strength.

[0035] Working principle: when starting work, the exhaust gas from the exhaust pipe 2, after filtering through the filter 5 again after the emission. When the filter 5 is used for a long time, it needs to be replaced and cleaned, rotate the adjusting knob 7 drive two-way screw 8 rotation, two-way screw 8 drive limit slide 9 sliding to remove the fixed filter 5, filter 5 to take out to replace. When the filter 5 is replaced and cleaned, the new filter 5 is inserted into the exhaust pipe 2 to filter the exhaust gas, rotate the two-way screw 8 drive limit slide 9 sliding to the limit slot to limit the filter 5. When the exhaust gas from the filter 5 after filtering from the exhaust pipe 2, the heat transfer rod 6 is heated, the heat transfer rod 6 is heated to the spiral heating rod 11, the water in the water tank 3 is heated, the water in the water tank 3 is heated to produce water vapor, through the transmission pipeline 4 to the reactor 1 again heating, the reactor 1 exhaust gas recycling to save energy.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the person skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of the present application.

Claims

1. A device for recovering waste heat from monoammonium phosphate production, characterized in that, The utility model relates to a production phosphoric monammonium's reaction kettle (1), reaction kettle (1) outer wall right side fixedly connected with exhaust pipe (2), exhaust pipe (2) top plug connection has filter (5), the both sides top side of filter (5) is equipped with limiting slot, two limiting slots inner wall apart from one side is connected with the inner wall top side of exhaust pipe (2) through limiting component, for limiting filter (5), exhaust pipe (2) bottom fixedly connected with water storage tank (3), exhaust pipe (2) inner wall bottom side is connected with the inner wall of water storage tank (3) through recovery component, water storage tank (3) left side fixedly connected with transmission pipeline (4), transmission pipeline (4) left end and reaction kettle (1) outer wall right side fixedly connected.

2. A waste heat recovery device for monoammonium phosphate production according to claim 1, characterized in that: The limiting component includes a bidirectional screw (8) rotatably connected to the inner wall top side of the exhaust pipe (2), two limiting sliding blocks (9) are threadedly connected to the outer wall of the bidirectional screw (8), and the two limiting sliding blocks (9) are inserted into the two limiting slots on the same side and the inner wall of the two limiting slots on the opposite side.

3. A waste heat recovery device for monoammonium phosphate production according to claim 2, characterized in that: The limiting sliding block (9) is fixedly connected with a limiting block (10) on the right side, and the limiting block (10) is in abutment with the right side of the filter (5) on the left side.

4. A waste heat recovery device for monoammonium phosphate production according to claim 2, characterized in that: The exhaust pipe (2) is rotatably connected with an adjusting knob (7) on the rear side, and the rear end of the bidirectional screw (8) is fixedly connected with the front side of the adjusting knob (7).

5. A waste heat recovery device for monoammonium phosphate production according to claim 4, characterized in that: The adjusting knob (7) is provided with anti-slip stripes on the outer wall.

6. A waste heat recovery device for monoammonium phosphate production according to claim 1, characterized in that: The recovery component includes five heat transfer rods (6) fixedly connected to the inner wall bottom side of the exhaust pipe (2), and a spiral heating rod (11) is fixedly connected to the inner wall of the water storage tank (3), wherein the bottom side of the heat transfer rod (6) is fixedly connected with the top side of the spiral heating rod (11).

7. A waste heat recovery device for monoammonium phosphate production according to claim 6, characterized in that: The heat transfer rod (6) and the spiral heating rod (11) are both prepared from carbon-tungsten-copper composite material as raw material.

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