CN202315447U

CN202315447U - Flocculation settling tank for L-lactic acid fermentation liquor

Info

Publication number: CN202315447U
Application number: CN201120292587XU
Authority: CN
Inventors: 陈卫国; 袁宽; 胡茂龙
Original assignee: SHANDONG XIANGRUI PHARMACEUTICAL CO Ltd
Current assignee: SHANDONG XIANGRUI PHARMACEUTICAL CO Ltd
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2012-07-11
Anticipated expiration: 2021-08-12

Abstract

The utility model discloses an air-lift flocculation settling tank for L-lactic acid fermentation liquor. According to the air-lift flocculation settling tank, a flocculation tank and a settling tank are integrally connected up and down; a liquid mixed distribution device and an air distribution stirring device are arranged inside the flocculation tank; after fermentation liquor and a flocculant are mixed, a mixture is sprayed uniformly by a sprinkling sprayer; compressed air is injected by an annular air distribution pipe from the lower part; the fermentation liquor is subjected to bubbling stirring to promote solid biomass in the fermentation liquor to contact the flocculant fully, so that the biomass is coagulated to form solid granules; the solid granules drop into the settling tank directly for standing and settling and are discharged from the bottom to enter the next filter process; and the clarified fermentation liquor overflows from the upper part and is discharged to enter the next concentration process. The air-lift flocculation settling tank has the characteristics of compact structure, convenience for operation, high flocculation settling speed, low power consumption and the like.

Description

L-lactic fermentation liquid flocculating setting groove

Technical field

The utility model relates to the separator of L-lactic fermentation liquid, directly relates to L-lactic fermentation liquid flocculating setting groove.

Background technology

China began to carry out the research that microbial fermentation is produced L-lactic acid from last century end, had realized industrialization production.The extraction of zymotic fluid is refining at first carries out flocculating setting, through removing by filter the solid biologic amount.The flocculating setting device that in the past adopted is that zymotic fluid is squeezed in the flocculation groove with flocculation liquid, under mechanical agitation, mixes; Under the effect of flocculant, the solid biologic amount is condensed into graininess, puts into subsider; The solid biologic amount is sunken to bottom land, and clarified solution removes enrichment process with pumping.Its shortcoming is that power consumption is big, Batch Process, complicated operation.

Summary of the invention

The purpose of the utility model just provides a kind of new flocculating setting device, and it can effectively solve, and the power consumption that traditional flocculating setting device exists is big, the problem of Batch Process, complicated operation.

The purpose of the utility model is achieved in that L-lactic fermentation liquid flocculating setting groove, has flocculation groove and subsider, and the cell body of flocculation groove is the cylindrical shell that forms with the weldering of stainless steel coiled sheet; Upper end welding upper cover, lower end welding low head stretch into the zymotic fluid inlet tube in the perforate of upper cover centre, and weld with upper cover; At zymotic fluid inlet tube side perforate welding flocculant solution inlet tube; At zymotic fluid inlet tube lower end welding showerhead, insert the air intlet pipe at the cell body lower lateral opening of flocculation groove, and weld with the cell body of flocculation groove; Annular gas distribution pipe is welded in air intlet pipe lower end; The air outlet slit pipe is welded in 0.5 meter perforate far from the center at the upper cover top, at low head center drilling welding flocculation liquid discharge pipe, at the cell body lower lateral perforate welding inspection manhole of flocculation groove; The cell body top of subsider is cylinder; Cover is welded in flocculation groove cell body periphery, and the cell body bottom of subsider is a bullet, and bottom vertebra body is welded on the cylinder lower end; At cylinder upper outside perforate welding clarified solution outlet, the welding solid suspension outlet in vertebra body lower end.

The utility model is because will flocculate groove and subsider are connected as a single entity up and down, and the groove inside of flocculating is equipped with liquid mixing distribution apparatus and air-distribution agitating device, thereby zymotic fluid and flocculation liquid can get into the flocculation groove simultaneously from the zymotic fluid inlet tube; Evenly spray through showerhead; Bottom compressed air is sent in the flocculation groove from the air intlet pipe, evenly sprays through annular gas distribution pipe, and bubbling stirs mixing material; Flocculant is evenly fully contacted with the solid biologic amount, accelerated flocculation rate.Solid biologic amount cohesion rapidly is graininess, directly enters the subsider quiescent setting through flocculation liquid discharge pipe.Realize serialization production, reduced operating procedure.Owing to replaced mechanical agitation with the stirring of gas rising bubbling, saved power consumption, realized low, the easy to operate purpose of serialization, energy consumption of zymotic fluid flocculating setting.

Description of drawings

Accompanying drawing shows the structural representation of the utility model L-lactic fermentation liquid flocculating setting groove, below in conjunction with accompanying drawing the utility model is described further.

The specific embodiment

Accompanying drawing shows the structure of the utility model L-lactic fermentation liquid flocculating setting groove, is made up of with subsider two parts flocculation groove 1.

The cell body of said flocculation groove 1 is the cylindrical shell that is welded into thickness 8mm stainless steel coiled sheet, and 2 meters of diameters are high 2.4 meters, up and down two ends welding upper cover 3 and low head 4; Insert zymotic fluid inlet tube 5 in upper cover 3 centre perforates, be φ 108 * 3mm stainless steel tube, stretch into interior 0.3 meter of cylindrical shell, lower end welding showerhead 7; 0.3 meter of arcwall face diameter, even close brill φ 10 circular holes, pitch-row 50mm; Zymotic fluid inlet tube 5 welds with upper cover 3, at zymotic fluid inlet tube 5 side perforates welding flocculant solution inlet tube 6, is φ 43 * 1.5mm stainless steel tube; The cell body side apart from 0.5 meter, low head 4 positions perforate insert air intlet pipe 8, be φ 76 * 3mm stainless steel tube, annular gas distribution pipe 9 is welded at down curved 0.3 meter; Be φ 76 * 3mm stainless steel tube, the even close brill φ 10mm of end face hole triplex row, pitch-row 50mm; Air intlet pipe 8 welds with the cell body of flocculation groove 1, and air outlet slit pipe 10 is welded in 0.5 meter perforate far from the center at upper cover 3 tops, is φ 76 * 3mm stainless steel tube; At low head 4 centre perforate welding flocculation liquid discharge pipes 11, be φ 108 * 3mm stainless steel tube, at the cell body lower lateral perforate welding inspection manhole 12 of flocculation groove 1.

Said subsider, top are cylindrical shape, process with the stainless steel coiled sheet weldering of thickness 8mm; Diameter be 2 meters (+16mm), highly be 4 meters, cover is welded in flocculation groove 1 cell body periphery; The bottom is a bullet 13, processes 0.5 meter of height with the stainless steel coiled sheet weldering of thickness 8mm; Tapering is 60 °, is welded on the lower end of top cylinder body 2, and zymotic fluid clarified solution outlet 14 is welded in perforate apart from 0.3 meter, low head 4 positions in the outside, cylinder 2 upper ends; Be φ 108 * 3mm stainless steel tube, welding solid suspension outlet 15 is φ 57 * 3mm stainless steel tube in bullet 13 lower ends.

Operation principle:

Zymotic fluid is sent into by zymotic fluid inlet tube 5, and flocculant is sent into by flocculant solution inlet tube 6, passes through showerhead 7 after two kinds of liquid mixing; Evenly spray; Compressed air is sent into from air intlet pipe 8, evenly sprays through annular gas distribution pipe 9, and the zymotic fluid bubbling is stirred; Make that the solid biologic amount evenly fully contacts with flocculant in the zymotic fluid, be condensed into graininess rapidly.Flow in the subsider quiescent settling with zymotic fluid from flocculation liquid discharge pipe 11.The graininess biomass is deposited in the lower taper body 13, discharges from solid suspension outlet 15, removes the solid biologic amount, gets into step filtration operation down, and the zymotic fluid of clarification is discharged from 14 overflows of clarified solution outlet, gets into step enrichment process down.

The characteristics of the utility model are: spray through showerhead owing to adopt zymotic fluid and flocculant to mix the back, two kinds of liquid mixing are even, owing to adopted the compressed air gas-lifting type to stir; Make not only that biomass contacts with the flocculant rapid and uniform in the zymotic fluid; Improved flocculation rate, and saved power consumption, owing to adopted flocculation groove and subsider to be connected as a single entity; Compact conformation, easy to operate.

Claims

1. L-lactic fermentation liquid flocculating setting groove; Have flocculation groove (1) and subsider, it is characterized in that: the cell body of flocculation groove (1) is the cylindrical shell that forms with the weldering of stainless steel coiled sheet, upper end welding upper cover (3), lower end welding low head (4); Stretch into zymotic fluid inlet tube (5) in upper cover (3) centre perforate; And weld with upper cover (3), at zymotic fluid inlet tube (5) side perforate welding flocculant solution inlet tube (6), the welding showerhead (7) in zymotic fluid inlet tube (5) lower end; Cell body lower lateral opening at flocculation groove (1) inserts air intlet pipe (8); And weld with the cell body of flocculation groove (1), annular gas distribution pipe (9) is welded in air intlet pipe (8) lower end, at upper cover (3) top far from the center 0.5 meter perforate welding air outlet slit pipe (10); At low head center drilling welding flocculation liquid discharge pipe (11), at the cell body lower lateral perforate welding inspection manhole (12) of flocculation groove (1); The cell body top of subsider is cylinder (2); Cover is welded in flocculation groove (1) cell body periphery; The cell body bottom of subsider is bullet (13); Bottom vertebra body (13) is welded on cylinder (2) lower end, at cylinder (2) upper outside perforate welding clarified solution outlet (14), and the welding solid suspension outlet (15) in vertebra body (13) lower end.