Energy-saving spray dryer

Abstract

The utility model discloses an energy-saving spray dryer which comprises a base plate, and the top of the base plate is fixedly connected with a fixing frame. Hot air obtained after dry materials in the cyclone separation bin are preliminarily separated enters the cloth bag dust removal bin through the first circulating pipe, the cloth bag dust removal bin separates the dry materials contained in the hot air, and the hot air obtained after the dry materials are separated enters the heating box through the second circulating pipe; according to the spray dryer, hot air is recycled, and the problem that in the operation process of a traditional spray dryer, a large amount of hot air needs to be heated to a high temperature so as to achieve rapid drying of materials, and a large amount of fuel or electric energy needs to be consumed generally in the process is solved. The problems that part of heat of a traditional spray dryer is discharged out without being fully utilized, energy is wasted, and waste gas generated in the spray drying process is directly discharged without being effectively treated, so that the environment is polluted are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spray drying technical field, concretely is a kind of energy-saving spray drying machine. BACKGROUND

[0002] Spray dryer is a kind of device that can complete drying and granulation simultaneously. According to process requirements, the pressure, flow of material liquid pump and the size of spray hole can be adjusted to obtain spherical particles with a certain size ratio. Spray dryer is a kind of continuous normal pressure dryer. Liquid material is formed into spray state (fine dispersion state) by atomizer. In the settlement process, water in the mist droplet is evaporated by hot air flow to dehydrate and dry. It is used for drying some heat-sensitive liquids, suspensions and viscous liquids, and also for drying fuel, intermediates, soap powder and inorganic salts, etc. Generally, it includes electric heating air drying oven, vacuum drying oven, high-speed centrifugal spray dryer and sterile spray dryer.

[0003] In the running process of traditional spray dryer, a large amount of hot air needs to be heated to a high temperature to realize the rapid drying of material. This process usually consumes a large amount of fuel or electric energy. Part of the heat of traditional spray dryer is not fully utilized and is discharged, causing energy waste. If the waste gas generated in the spray drying process is directly discharged without effective treatment, it will cause pollution to the environment.

[0004] Therefore, it is necessary to design and reform the spray dryer to effectively prevent the phenomenon that, in the running process of traditional spray dryer, a large amount of hot air needs to be heated to a high temperature to realize the rapid drying of material. This process usually consumes a large amount of fuel or electric energy. Part of the heat of traditional spray dryer is not fully utilized and is discharged, causing energy waste. If the waste gas generated in the spray drying process is directly discharged without effective treatment, it will cause pollution to the environment. INVENTION CONTENTS

[0005] To solve the problems proposed in the above background technology, the purpose of the utility model is to provide an energy-saving spray dryer with the advantages of high efficiency and energy saving, which solves the problems that, in the running process of traditional spray dryer, a large amount of hot air needs to be heated to a high temperature to realize the rapid drying of material. This process usually consumes a large amount of fuel or electric energy. Part of the heat of traditional spray dryer is not fully utilized and is discharged, causing energy waste. If the waste gas generated in the spray drying process is directly discharged without effective treatment, it will cause pollution to the environment.

[0006] To achieve the above object, the utility model provides following technical scheme: an energy -saving spray dryer, including the base plate, the top of base plate is fixedly connected with the fixed frame, the inside of fixed frame is fixedly connected with the drying jar, the top of drying jar is connected with the centrifugal atomizer, the rear side of left side of base plate top is fixedly connected with the slurry barrel, the bottom of slurry barrel right side is connected with the feed pump through the feed pipe, the left side of fixed frame top is fixedly installed with feed pump, the output of feed pump is connected with centrifugal atomizer through feed pipe, the front side of fixed frame top is fixedly connected with heating case, the rear side of heating case is connected with air distributor, the rear side of air distributor is through to the inside of drying jar, the front side of left side of base plate top is provided with filter assembly, the right side of base plate top is provided with circulation component.

[0007] As the utility model is preferred, the filter assembly includes a filter box, the right side of the filter box is provided with an air inlet, a dust screen is fixedly installed in the inside of the filter box, the dust screen is located at the top of the air inlet, a primary efficiency filter plate is slidably connected to the top of the inside of the filter box, the primary efficiency filter plate is located at the top of the dust screen, a high efficiency filter plate is slidably connected to the top of the inside of the filter box, the high efficiency filter plate is located at the top of the primary efficiency filter plate, an air induction fan is connected to the top of the filter box, the air induction fan is fixedly installed at the top of the filter box, the output of the air induction fan is connected to the left side of the heating case through an air duct.

[0008] As the utility model is preferred, the circulation component includes a mounting bracket, the mounting bracket is fixedly connected to the rear side of the right side of the base plate, a cyclone separation bin is fixedly connected to the inside of the mounting bracket, the top of the left side of the cyclone separation bin is connected to the bottom of the right side of the drying jar through a feed pipe, a limiting bracket is fixedly installed at the front side of the right side of the base plate, a cloth bag dust removal bin is fixedly connected to the inside of the limiting bracket, a first circulation pipe is connected between the top of the rear side of the cloth bag dust removal bin and the bottom of the front side of the cyclone separation bin, a second circulation pipe is connected between the bottom of the left side of the cloth bag dust removal bin and the right side of the heating case.

[0009] As the utility model is preferred, the bottom of the slurry barrel is connected to a feed pipe, a sealing cover is threadedly connected to the top of the feed pipe.

[0010] As the utility model is preferred, a dust collection box is slidably connected to the bottom of the inside of the filter box, the dust collection box is used in cooperation with the filter assembly.

[0011] As the utility model is preferred, a sliding groove is formed in the left side and the right side of the inner wall of the filter box, the number of the sliding grooves is several, the dust collection box, the primary efficiency filter plate and the high efficiency filter plate are slidably connected in the inside of the sliding grooves through sliding rails.

[0012] The filtering net is used in cooperation with the circulating assembly.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、 the utility model discloses a filtering assembly and the setting of circulating assembly, and the air of outside is filtered through the setting of filtering assembly, and the air of outside is introduced into the inside of heating box through the air induction fan, and the air of outside is filtered through the dust screen, the primary efficiency filter board and the high -efficient filter board, and the air after filtering is introduced into the inside of heating box through the air induction fan, and the air after heating is spirally sprayed into the inside of drying tank through the air distributor, and the slurry in the slurry barrel is introduced into the inside of centrifugal atomizer through the starting of feed pump, and the slurry is atomized and sprayed, and the atomized slurry is fully contacted with the hot air, and the water in the slurry is rapidly evaporated, and the hot air containing drying material in the drying process of slurry is introduced into the inside of cyclone separation bin through the first circulating pipe, and the drying material in the hot air containing drying material is preliminarily separated, and the hot air after the preliminary separation of drying material is introduced into the inside of cloth bag dust removal bin through the first circulating pipe, and the drying material in the hot air after the preliminary separation of drying material is separated, and the hot air after the separation of drying material is introduced into the inside of heating box through the second circulating pipe, and the circulation of hot air is completed, and the problem that a large amount of hot air needs to be heated to a high temperature in the operation process of traditional spray drying machine to realize the rapid drying of material is solved, and a large amount of fuel or electric energy is consumed in this process.

[0015] 2、 the utility model discloses the setting of filtering assembly can filter the dust in the air of outside, avoid the air containing dust in the actual use process being introduced into the inside of heating box and drying tank by the air induction fan, and the slurry is polluted in the drying process of slurry, and the drying efficiency is reduced and the number of defective products is increased. ACCURACY

[0016] Figure 1 It is the three-dimensional schematic view of the utility model;

[0017] Figure 2 It is the right view schematic view of the utility model;

[0018] Figure 3 It is the explosion schematic view of the filtering assembly of the utility model;

[0019] Figure 4 It is the explosion schematic view of the circulating assembly of the utility model;

[0020] Figure 5 It is the structure schematic view of air distributor of the utility model.

[0021] In the drawing: 1, base plate; 2, fixed frame; 3, drying tank; 4, centrifugal atomizer; 5, slurry barrel; 6, feeding pump; 7, heating box; 8, air distributor; 9, filter assembly; 91, filter box; 92, air inlet; 93, dust screen; 94, primary efficiency filter plate; 95, high efficiency filter plate; 96, induced draft fan; 10, circulating assembly; 101, mounting frame; 102, cyclone separation bin; 103, limiting frame; 104, cloth bag dust removal bin; 105, first circulating pipe; 106, second circulating pipe; 11, feeding pipe; 12, sealing cover; 13, dust collection box; 14, chute; 15, filter screen. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] As Figures 1 to 5 shown, the utility model provides a kind of energy-saving spray dryer, including base plate 1, the top of base plate 1 is fixedly connected with fixed frame 2, the inside of fixed frame 2 is fixedly connected with drying tank 3, the top of drying tank 3 is communicated with centrifugal atomizer 4, the rear side of left side of base plate 1 top is fixedly connected with slurry barrel 5, the bottom of right side of slurry barrel 5 is communicated with feeding pump 6 by conveying pipe, feeding pump 6 is fixedly installed at the left side of the top of fixed frame 2, the output end of feeding pump 6 is communicated with centrifugal atomizer 4 by conveying pipe, the front side of the top of fixed frame 2 is fixedly connected with heating box 7, the rear side of heating box 7 is communicated with air distributor 8, the rear side of air distributor 8 is penetrated to the inside of drying tank 3, the front side of left side of base plate 1 top is provided with filter assembly 9, the right side of base plate 1 top is provided with circulating assembly 10.

[0024] Reference Figure 3 , filter assembly 9 includes filter box 91, air inlet 92 is formed in the right side of filter box 91, dust screen 93 is fixedly installed in the inside of filter box 91, dust screen 93 is located at the top of air inlet 92, primary efficiency filter plate 94 is slidably connected to the top of the inside of filter box 91, primary efficiency filter plate 94 is located at the top of dust screen 93, high efficiency filter plate 95 is slidably connected to the top of the inside of filter box 91, high efficiency filter plate 95 is located at the top of primary efficiency filter plate 94, induced draft fan 96 is communicated with the left side of heating box 7 by gas guide pipe, induced draft fan 96 is fixedly installed at the top of filter box 91, the output end of induced draft fan 96.

[0025] As a technical optimization scheme of the utility model, through the setting of filter assembly 9, the dust in the external air can be filtered, avoiding that the external air containing dust is introduced into the inside of heating box 7 and drying tank 3 by induced draft fan 96 in the actual use process, causing the pollution of slurry in the drying process of slurry, and leading to the decrease of drying efficiency and the increase of defective product quantity.

[0026] Reference Figure 4 Circulation assembly 10 includes mounting frame 101, mounting frame 101 is fixedly connected to the back side of the right side of base plate 1, cyclone separation bin 102 is fixedly connected in the inside of mounting frame 101, the top of the left side of cyclone separation bin 102 is communicated with the bottom of the right side of drying tank 3 through feed pipe, the front side of the right side of base plate 1 is fixedly installed with limiting frame 103, cloth bag dust removal bin 104 is fixedly connected in the inside of limiting frame 103, the top of the back side of cloth bag dust removal bin 104 is communicated with the bottom of the front side of cyclone separation bin 102 through first circulation pipe 105, and the bottom of the left side of cloth bag dust removal bin 104 is communicated with the right side of heating box 7 through second circulation pipe 106.

[0027] As a technical optimization scheme of the utility model, through the setting of circulation assembly 10, the heat inside the spray drying machine can be recycled, avoiding that part of the heat of the traditional spray drying machine is not fully utilized but discharged, causing the waste of energy, and the waste gas generated in the spray drying process is directly discharged without effective treatment, leading to the pollution of the environment.

[0028] Reference Figure 1 The bottom of slurry bucket 5 is communicated with feed pipe 11, and the top of feed pipe 11 is threadedly connected with sealing cover 12.

[0029] As a technical optimization scheme of the utility model, through the setting of feed pipe 11, the slurry inside slurry bucket 5 can be protected in cooperation with sealing cover 12, avoiding that the dust in the external air enters the inside of slurry bucket 5 through feed pipe 11 in the actual use process, leading to the pollution of slurry.

[0030] Reference Figure 3 The bottom of the inside of filter box 91 is slidably connected with dust collection box 13, and dust collection box 13 is used in cooperation with filter assembly 9.

[0031] As a technical optimization scheme of the utility model, through the setting of dust collection box 13, the dust filtered out in filter assembly 9 can be collected, avoiding that the dust filtered out by dustproof net 93 in the inside of filter box 91 is too much due to the increase of use time in the actual use process, leading to the decrease of the filtering effect of filter assembly 9.

[0032] ReferenceFigure 3 The left side and the right side of the inner wall of the filter box 91 are both provided with a plurality of sliding grooves 14, and the dust collecting box 13, the primary efficiency filter plate 94 and the high efficiency filter plate 95 are all slidably connected in the sliding grooves 14.

[0033] As a technical optimization scheme of the utility model, through the setting of the sliding grooves 14, the dust collecting box 13, the primary efficiency filter plate 94 and the high efficiency filter plate 95 can be conveniently cleaned and replaced, so that the condition that the dust attached to the inside of the dust collecting box 13, the surface of the primary efficiency filter plate 94 and the surface of the high efficiency filter plate 95 is too much due to the increase of the use time, thereby causing the reduction of the filtering effect, can be avoided.

[0034] Reference Figure 4 The rear side of the first circulating pipe 105 and the right side of the second circulating pipe 106 are both fixedly provided with a filter screen 15, and the filter screen 15 is used in cooperation with the circulating assembly 10.

[0035] As a technical optimization scheme of the utility model, through the setting of the filter screen 15, the dry materials separated from the inside of the cyclone separation bin 102 and the cloth bag dust removal bin 104 can be prevented from entering the inside of the heating box 7 during the operation of the circulating assembly 10, so that the condition that the normal operation of the heating box 7 is affected can be avoided.

[0036] The working principle and the use process of the utility model are as follows: when in use, the user starts the induced draft fan 96 first, the air outside enters the inside of the filter box 91 through the air inlet 92, is filtered through the dust screen 93, the primary efficiency filter plate 94 and the high efficiency filter plate 95, the filtered air enters the inside of the heating box 7 through the induced draft fan 96, the heated air is spirally sprayed into the inside of the drying tank 3 through the air distributor 8, the feed pump 6 is started, the slurry in the slurry barrel 5 enters the inside of the centrifugal atomizer 4, the centrifugal atomizer 4 sprays the slurry in a misty manner, so that the misty slurry is fully contacted with the hot air, the water in the slurry is rapidly evaporated, the hot air containing the dry materials generated during the drying process of the slurry enters the inside of the cyclone separation bin 102 through the first circulating pipe 105, the cyclone separation bin 102 preliminarily separates the dry materials in the hot air containing the dry materials, the hot air after the preliminary separation of the dry materials enters the inside of the cloth bag dust removal bin 104 through the first circulating pipe 105, the dry materials in the hot air after the preliminary separation of the dry materials are separated out, the hot air after the separation of the dry materials enters the inside of the heating box 7 through the second circulating pipe 106, the circulation of the hot air is completed, and the effect of high efficiency and energy saving is achieved.

[0037] In conclusion: the energy-saving spray dryer, through the base plate 1, the fixed frame 2, the drying tank 3, the centrifugal atomizer 4, the slurry barrel 5, the feed pump 6, the heating box 7, the air distributor 8, the filter assembly 9, the filter box 91, the air inlet 92, the dust screen 93, the primary efficiency filter plate 94, the high-efficiency filter plate 95, the air induction fan 96, the circulating assembly 10, the mounting frame 101, the cyclone separation bin 102, the limiting frame 103, the cloth bag dust removal bin 104, the first circulating pipe 105, the second circulating pipe 106, the feed pipe 11, the sealing cover 12, the dust collection box 13, the chute 14, the filter screen 15, solve the traditional spray dryer in the running process needs to heat a large amount of hot air to high temperature, to realize the rapid drying of material, this process usually needs to consume a large amount of fuel or electric energy. The part of heat of the traditional spray dryer is not fully utilized and is discharged, causing the waste of energy, and the waste gas generated in the spray drying process is directly discharged without effective treatment, causing the problem of pollution to the environment.

[0038] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An energy efficient spray dryer comprising a base plate (1) characterised in that: The top of the substrate (1) is fixedly connected with a fixing frame (2), the inside of the fixing frame (2) is fixedly connected with a drying tank (3), the top of the drying tank (3) is communicated with a centrifugal atomizer (4), the rear side of the left side of the top of the substrate (1) is fixedly connected with a slurry barrel (5), the bottom of the right side of the slurry barrel (5) is communicated with a feeding pump (6) through a feeding pipe, the feeding pump (6) is fixedly installed on the left side of the top of the fixing frame (2), the output end of the feeding pump (6) is communicated with the centrifugal atomizer (4) through a feeding pipe, the front side of the top of the fixing frame (2) is fixedly connected with a heating box (7), the rear side of the air distributor (8) is communicated with the inside of the drying tank (3), the front side of the left side of the top of the substrate (1) is provided with a filtering assembly (9), and the right side of the top of the substrate (1) is provided with a circulating assembly (10).

2. The energy saving spray dryer as claimed in claim 1, wherein: The filtering assembly (9) comprises a filtering box (91), the right side of the filtering box (91) is provided with an air inlet (92), a dustproof net (93) is fixedly installed in the inside of the filtering box (91), the dustproof net (93) is located on the top of the air inlet (92), a primary efficiency filter plate (94) is slidably connected to the top of the inside of the filtering box (91), the primary efficiency filter plate (94) is located on the top of the dustproof net (93), a high efficiency filter plate (95) is slidably connected to the top of the inside of the filtering box (91), the high efficiency filter plate (95) is located on the top of the primary efficiency filter plate (94), and an air inducing fan (96) is communicated with the left side of the heating box (7) through a gas guide pipe.

3. The energy saving spray dryer as claimed in claim 1, wherein: The circulating assembly (10) comprises a mounting frame (101), the mounting frame (101) is fixedly connected to the rear side of the right side of the substrate (1), a cyclone separation bin (102) is fixedly connected to the inside of the mounting frame (101), the top of the left side of the cyclone separation bin (102) is communicated with the bottom of the right side of the drying tank (3) through a feeding pipe, a limiting frame (103) is fixedly installed on the front side of the right side of the substrate (1), a bag type dust removal bin (104) is fixedly connected to the inside of the limiting frame (103), a first circulating pipe (105) is communicated between the top of the rear side of the bag type dust removal bin (104) and the bottom of the front side of the cyclone separation bin (102), and a second circulating pipe (106) is communicated between the bottom of the left side of the bag type dust removal bin (104) and the right side of the heating box (7).

4. The energy saving spray dryer as claimed in claim 1, wherein: The bottom of the slurry barrel (5) is communicated with a feeding pipe (11), and the top of the feeding pipe (11) is threadedly connected with a sealing cover (12).

5. The energy saving spray dryer as claimed in claim 2, wherein: The bottom of the inside of the filtering box (91) is slidably connected with a dust collecting box (13), and the dust collecting box (13) is used in cooperation with the filtering assembly (9). The bottom of the inside of the filtering box (91) is slidably connected with a dust collecting box (13), and the dust collecting box (13) is used in cooperation with the filtering assembly (9).

6. The energy saving spray dryer as claimed in claim 5, wherein: The left side and the right side of the inner wall of the filter box (91) are both provided with a sliding groove (14), the number of the sliding grooves (14) is several, and the dust collection box (13), the primary efficiency filter plate (94) and the high efficiency filter plate (95) are all slidably connected in the sliding grooves (14).

7. The energy saving spray dryer as claimed in claim 3, wherein: The rear side of the first circulating pipe (105) and the right side of the second circulating pipe (106) are both fixedly provided with a filter screen (15), and the filter screen (15) is used in cooperation with the circulating assembly (10).

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