阅读说明：本技术 一种多独立分室的卧式连续结晶罐及其轮洗调控方法 (Multi-independent-chamber horizontal continuous crystallization tank and wheel washing regulation and control method thereof ) 是由 谢连城 谢茗 于 2019-06-28 设计创作，主要内容包括：本发明公开了一种新型的多独立分室的卧式连续结晶罐及其轮洗调控方法,其特征在于：这种新型多独立分室的卧式连续结晶罐器体内分隔有3～4个独立封闭的分室,每个分室又被横向隔板和纵向隔板分隔成3～4个上部连通的隔室,在每个隔室的加热体两侧和结晶罐罐壁之间形成一条降液通道,在降液通道下部或加热体下部装有强制搅拌器,每个隔室均有独立的进种进料、进水及喷洗系统,每个分室内的2～4个上部连通的隔室共用一个垂直列管式加热体,一个汁汽室,一个捕汁器,一个冷凝器,一个放糖阀装置和种子的入料管,每个独立封闭的分室之间由闸阀互相连接,糖膏可以在各分室之间流动,每个分室都可以按需要轮流清洗,各分室可以设定不同的真空度以利于促进各独立分室间糖膏的流动。(The invention discloses a novel horizontal continuous crystallization tank with multiple independent chambers and a wheel washing regulation and control method thereof, which are characterized in that: the novel multi-independent-chamber horizontal continuous crystallization tank body is divided into 3-4 independent closed chambers, each chamber is divided into 3-4 compartments with communicated upper parts by a transverse partition plate and a longitudinal partition plate, a liquid descending channel is formed between two sides of a heating body of each compartment and the wall of a crystallizing tank, a forced stirrer is arranged at the lower part of the liquid descending channel or the lower part of the heating body, each compartment is provided with an independent seed feeding, water feeding and spraying system, 2-4 compartments with the upper parts communicated with each other in each compartment share one vertical tubular heating body, one juice steam chamber, one juice catching device, one condenser, one sugar discharging valve device and a seed feeding pipe, each independent closed compartment is mutually connected through a gate valve, sugar paste can flow among the compartments, each compartment can be cleaned in turn according to needs, and different vacuum degrees can be set for each compartment to facilitate the flow of the sugar paste among the independent compartments.)

1. A horizontal continuous crystallizer with multiple independent chambers and a wheel washing regulation method thereof are disclosed, wherein the body of the horizontal continuous crystallizer with multiple independent chambers is designed into a long groove-shaped tank body 1, which comprises a vertical tube array type heating body 4 arranged in the tank, a juice catcher 7, a forced stirrer 2, a molasses inlet pipe, a hot water pipe 3, a condensed water discharge pipe 5, a brix instrument probe shaft sleeve 6, a steam inlet pipe 8, a seed inlet pipe, a non-condensed gas discharge pipe 10, a juice steam outlet 11, a boiled sugar paste discharge device, a communication valve between chambers and the like; the method is characterized in that:

the middle part in the long groove-shaped tank body is provided with a transverse partition plate and a longitudinal partition plate to divide the long groove-shaped tank body into 3-4 independent closed sub-chambers, each sub-chamber is internally provided with a vertical tubular heating body, each sub-chamber is divided into 3-4 separate chambers with the upper parts communicated by the partition plates, a liquid descending channel is formed between the heating body of each separate chamber and the tank wall of the crystallization tank, the lower part of the liquid descending channel or the lower part of the heating body is provided with a forced stirrer, each separate chamber is provided with an independent feeding and hot water inlet pipe device 3, a brix detector, an automatic cleaning device outside the tank and an in-tank spraying device.

2. The novel horizontal continuous crystallization tank with multiple independent chambers and the wheel washing regulation and control method thereof as claimed in claim 1, wherein the channels and valves are connected between two adjacent chambers, massecuite can flow between the chambers, and the chambers can be communicated and used independently, so that 3-4 independent closed chambers can be regulated and controlled by the valves of the channels between the chambers to carry out ordered wheel washing without affecting continuous sugar boiling of the continuous crystallization tank during the whole squeezing season.

3. The novel horizontal continuous crystallizing tank with multiple independent chambers and the method for controlling the same according to claim 1, wherein the juice vapor chamber of each independent closed chamber is connected to an XLC type adjustable condenser, and the vacuum degree between the chamber where the seeds enter and the chamber where the boiled sugar mass is discharged is gradually increased by adjusting the XLC type adjustable condenser of each chamber, and the ordered flow of the sugar mass between the chambers is promoted by the pressure difference between the chambers.

4. The novel horizontal continuous crystallizing tank with multiple independent chambers and the round washing regulation and control method thereof as claimed in claim 1, characterized in that when three chambers of the three-chamber continuous boiling tank are all boiling sugar, seeds enter the chamber B from the seed pipe 14, at the same time, the communicating valve 13 is closed, the communicating valves 16 and 19 are opened, and massecuite flows through the chamber C and the chamber A from the chamber B and is discharged through the massecuite discharging device 12;

when the chamber B and the chamber C are boiled and the chamber A is washed, the seeds enter the chamber B from the seed pipe 14, the communicating valves 13 and 19 are closed, the communicating valve 16 is opened, and massecuite enters the chamber C from the chamber B and is discharged by the massecuite discharging device 18;

when the chamber A and the chamber B are boiled and the chamber C is washed, the seeds enter the chamber A from the seed pipe 9, the communicating valves 16 and 19 are closed, the communicating valve 13 is opened for boiling, and massecuite enters the chamber B from the chamber A and then is discharged through the massecuite discharging device 15;

when the chamber C and the chamber A are boiled and the chamber B is washed, the seeds enter the chamber C from the seed pipe 17, the communication valves 13 and 16 are closed, the communication valve 19 is opened, and massecuite enters the chamber A from the chamber C and is discharged through the massecuite discharging device 12.

5. The novel horizontal continuous crystallizing tank with multiple independent compartments and the method for controlling the rotation washing thereof as claimed in claim 1, wherein the flow direction of the massecuite can be arranged as follows when the three compartments are all used for boiling sugar: seeds enter a sub-chamber A from a seed pipe 9 for boiling, flow through a sub-chamber B and a sub-chamber C, are boiled into massecuite, are discharged out of a massecuite device 18 from the sub-chamber C, and are sequentially washed in the three sub-chambers, namely a chamber C, a chamber B and a chamber A; or the seeds enter the sub-chamber C from the seed pipe 17 for boiling, flow through the sub-chamber A and the sub-chamber B, are boiled into massecuite, are discharged out of the massecuite device 15 from the sub-chamber B, and the three sub-chambers are washed sequentially to form the chamber B, the chamber A and the chamber C.

6. The novel horizontal continuous crystallizing tank with multiple independent chambers and the round washing regulation and control method thereof as claimed in claim 1, characterized in that when the four chambers of the four-chamber continuous boiling tank are all boiling sugar, the seeds enter the chamber B from the seed pipe 14 for boiling, at the same time, the communicating valve 13 is closed, the communicating valves 16, 19 and 22 are opened, the massecuite flows from the chamber B through the chamber C, the chamber D and the chamber A, and the boiled massecuite is discharged from the chamber A and is discharged from the massecuite discharging device 12;

when the subchamber B, the subchamber C and the subchamber D are boiled and the subchamber A is washed in a round way, seeds enter the subchamber B from the seed pipe 14 for boiling, the communication valves 13 and 22 are closed, the communication valves 16 and 19 are opened, massecuite flows through the subchamber C and the subchamber D from the subchamber B, and the massecuite which is boiled into massecuite is discharged from the subchamber D and is discharged out of the massecuite device 21;

when the chamber A, the chamber B and the chamber C are boiled and the chamber D is washed in a round way, seeds enter the chamber A from the seed pipe 9 for boiling, the communication valves 19 and 22 are closed, the communication valves 13 and 16 are opened, massecuite flows through the chamber B and the chamber C from the chamber A, and boiled massecuite is discharged from the chamber C and is discharged out of the massecuite device 18;

when the chamber D, the chamber A and the chamber B are boiled and the chamber C is washed in a round way, seeds enter the seed tube 20 of the chamber D for boiling, the communicating valves 16 and 19 are closed, the communicating valves 22 and 13 are opened, massecuite flows through the chamber A and the chamber B from the chamber D, and boiled massecuite is discharged from the chamber B and is discharged out of the massecuite device 15;

when the subchamber C, the subchamber D and the subchamber A are boiled and the subchamber B is washed in a round mode, seeds enter the subchamber C from the seed pipe 17 for boiling, the communication valves 13 and 16 are closed, the communication valves 19 and 22 are opened, massecuite flows through the subchamber D and the subchamber A from the subchamber C, and boiled massecuite is discharged from the subchamber A and is discharged out of the massecuite device 12.

7. The novel horizontal continuous crystallizing tank with multiple independent chambers and the method for controlling the rotation washing thereof as claimed in claim 1, wherein the flow direction of massecuite when the four chambers of the four-chamber continuous boiling tank are all used for boiling sugar can be arranged as follows: seeds enter the sub-chamber A from the seed pipe 9 for boiling, flow through the sub-chamber B, the sub-chamber C and the sub-chamber D, are boiled into massecuite, are discharged out of the massecuite device 21 from the sub-chamber D, and are sequentially washed into the sub-chamber D, the sub-chamber C, the sub-chamber B and the sub-chamber A; or the seeds enter the sub-chamber D from the seed tube 20 to be boiled and made to be massecuite to flow through the sub-chamber A, the sub-chamber B and the sub-chamber C, the massecuite is boiled and made to be massecuite to be discharged out of the massecuite device 18 from the sub-chamber C, and the four sub-chambers are washed sequentially to form the chamber C, the chamber B, the chamber A and the chamber D; or the seeds enter the sub-chamber C from the seed pipe 17 to be boiled and made to be massecuite to flow through the sub-chamber D, the sub-chamber A and the sub-chamber B, the massecuite is boiled and made to be massecuite to be discharged from the sub-chamber B and the massecuite discharging device 15, and the four sub-chambers are washed sequentially to be the chamber B, the chamber A, the chamber D and the chamber C.

Technical Field

The invention relates to a horizontal continuous crystallizing tank with multiple independent chambers and a round washing regulation and control method thereof, which are particularly suitable for a sugar boiling system of a sugar refinery.

Background

In order to ensure the quality and the cooking recovery rate of products, each cooked sugar tank of an intermittent crystallizing tank used by a sugar mill needs to be cleaned. At present, horizontal continuous crystallization tanks used in sugar mills at home and abroad are only 1-2 independent compartments. During the squeezing season, only 1 chamber horizontal continuous crystallizing tank can not be cleaned on line obviously, and the tank to be cleaned can only be stopped to clean like an intermittent tank; the round washing of the horizontal continuous crystallizing tank with 2 independent chambers is a method of reserving one chamber for normal production and stopping one chamber for cleaning, the processing capacity of the continuous crystallizing tank is halved during the round washing of the chambers, which inevitably causes the fluctuation of the balance of materials and steam and water in the whole plant, so that some plants often delay the tank washing time during the period of high squeezing amount, even wash the tank once in 2-3 months, which inevitably affects the product quality and reduces the boiling recovery rate.

Disclosure of Invention

The invention aims to provide a horizontal continuous crystallizing tank with multiple independent chambers and a wheel washing regulation and control method thereof, which can not only clean each independent chamber without greatly influencing the processing capacity of the continuous crystallizing tank during the season of squeezing, but also promote the flow of massecuite among the independent chambers by regulating and controlling the different vacuum degrees of the independent chambers.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the novel horizontal continuous crystallization tank with multiple independent chambers comprises three independent chambers as shown in figure 1 and four independent chambers as shown in figure 3, and an automatic control device thereof. The whole set of horizontal continuous crystallization tank with multiple independent compartments is divided into a tank body and a tank body, the tank body is in an inverted-heart-shaped long-groove shape, 3-4 independent closed compartments are separated in the tank body, each compartment is divided into 3-4 compartments with upper parts communicated by a transverse partition plate and a longitudinal partition plate, a liquid descending channel is formed between two sides of a heating body of each compartment and the tank wall of the crystallization tank, a forced stirrer is arranged at the lower part of the liquid descending channel, 3-4 compartments with upper parts communicated in each compartment share one vertical tubular heating body, one juice steam chamber, one juice catcher, one condenser, one sugar release valve device and a seed inlet pipe. Each compartment has independent feed and feed inlet connections and control loops. A spray system is also installed in the compartment to prevent build-up on the inner walls of the tank. The connecting channel between 3 ~ 4 independent confined locuses is controlled by the butterfly valve, and massecuite can flow between each locuses, and each locuses can communicate the use also can independent utility.

The invention has the beneficial effects that:

1. 3-4 independent closed sub-chambers can be kept to be communicated to work completely or washed by a single wheel as required without influencing the continuous normal production of the continuous crystallizing tank during the whole squeezing season, so that the heating surface and the inner wall of the tank can be kept without scaling, and the sugar quality and the boiling recovery rate are obviously improved.

2. Each independent closed chamber is provided with an XLC type variable-diameter condenser, the condenser of each chamber is adjusted to gradually increase the vacuum degree between the chamber from the seed inlet to the chamber from which the cooked massecuite is discharged during sugar boiling, and the pressure difference between the chambers is used for promoting the orderly flow of the massecuite among the chambers.

Drawings

The invention is further described with reference to the following figures and detailed description.

FIG. 1 is a schematic diagram showing the structure of three independent compartment continuous cooking pots 1 of the present invention, and FIG. 2 is a schematic diagram showing a washing scheme of three independent compartment continuous cooking pots 1; fig. 3 is a schematic structural diagram of four independent compartment continuous cooking pots 1 of the present invention, and fig. 4 and 5 are schematic views of a wheel washing scheme of the four independent compartment continuous cooking pots 1.

In fig. 1, chamber a, chamber B, chamber C, communication valve 13 between chamber a and chamber B, communication valve 16 between chamber B and chamber C, communication valve 19 between chamber C and chamber a, seed inlet pipe 9 of chamber a, seed inlet pipe 14 of chamber B, seed inlet pipe 17 of chamber C, massecuite discharge device 12 of chamber a, massecuite discharge device 15 of chamber B, massecuite discharge device 18 of chamber C. Each chamber is provided with an independent heating body 4, a steam inlet pipe 8, an ammonia exhaust pipe 9 and a condensed water exhaust pipe 5.

In fig. 3, chamber a, chamber B, chamber C, chamber D, communication valve 13 between chamber a and chamber B, communication valve 16 between chamber B and chamber C, communication valve 19 between chamber C and chamber D, communication valve 22 between chamber D and chamber a, seed inlet pipe 9 of chamber a, seed inlet pipe 14 of chamber B, seed inlet pipe 17 of chamber C, seed inlet pipe 20 of chamber D, massecuite outlet device 12 of chamber a, massecuite outlet device 15 of chamber B, massecuite outlet device 18 of chamber C, massecuite outlet device 21 of chamber D. Each chamber is provided with an independent heating body 4, a steam inlet pipe 8, an ammonia exhaust pipe 9 and a condensed water exhaust pipe 5.

Detailed Description

Fig. 1 is a schematic view of a continuous cooking vessel 1 with three separate compartments according to the invention, and fig. 1 shows a partial cross-section of the continuous cooking vessel body. In fig. 1, a continuous boiling pot 1 is provided with three independent subchambers A, B and C, each subchamber is divided into 4 independent compartments with upper parts communicated by a partition plate, each subchamber is provided with an independent vertical tubular heating body 4, a heating steam pipe 8 is fed, a condensate water pipe 5 is discharged, a non-condensable gas pipe 10 is discharged, a juice steam chamber, a juice extractor 11, a seed feeding pipe (a chamber seed pipe 9, a B chamber seed pipe 14 and a C chamber seed pipe 17), a massecuite discharging device (a chamber massecuite discharging device 12, a B chamber massecuite discharging device 15 and a C chamber massecuite discharging device 18) is arranged between every two subchambers, and communication pipelines and valves are connected between the subchambers A and B, a communication valve 16 between the subchambers B and C and a communication valve 19 between the subchambers C and A). Each compartment is provided with an independent feeding and hot water inlet pipe device 3, a hammering degree detector, an automatic cleaning device outside the tank and an in-tank spraying device.

FIG. 2 is a schematic view showing the flow direction of massecuite and the respective compartment washing in the operation of the three-compartment continuous boiling pot of the present invention, in whichFIG. 2- (1)The flow direction of massecuite is schematically shown when the three sub-chambers of the three-chamber continuous cooking pot are used for cooking sugar, at the moment, the communication valve 13 is closed, the communication valves 16 and 19 are opened, seeds enter the sub-chamber B from the seed pipe 14 for cooking, flow through the sub-chamber C and the sub-chamber A, are cooked into massecuite, and are discharged out of the massecuite device 12 from the sub-chamber A.

FIG. 2- (2)The schematic flow of massecuite when the three-chamber continuous cooking pot is divided into the chamber B and the chamber C for cooking sugar and the chamber A is washed in turn is shown, at the moment, the communicating valves 13 and 19 are closed, the communicating valve 16 is opened, seeds enter the chamber B from the seed pipe 14 for cooking, cooked massecuite is discharged from the chamber C and is discharged from the massecuite discharging device 18.

FIG. 2- (3)The schematic flow of massecuite is that when the three-chamber continuous cooking pot is used for cooking sugar in the sub-chamber A and the sub-chamber B and the sub-chamber C is used for washing, the communicating valves 16 and 19 are closedWhen the seed tube is closed, the communicating valve 13 is opened, the seeds enter the sub-chamber A from the seed tube 9 for boiling, the boiled massecuite is discharged from the sub-chamber B and the massecuite discharging device 15.

FIG. 2- (4)The schematic flow of massecuite when the three-chamber continuous cooking pot is divided into a chamber C and a chamber A for cooking sugar and the chamber B for washing is shown, at the moment, the communicating valves 13 and 16 are closed, the communicating valve 19 is opened, seeds enter the chamber C from the seed pipe 17 for cooking, cooked massecuite is discharged from the chamber A and is discharged out of the massecuite device 12.

FIG. 2- (1)The massecuite flow direction when the three sub-chambers of the middle three-chamber continuous cooking pot are used for cooking sugar can also be arranged as follows: seeds enter a sub-chamber A from a seed pipe 9 for boiling, flow through a sub-chamber B and a sub-chamber C, are boiled into massecuite, are discharged out of a massecuite device 18 from the sub-chamber C, and are sequentially washed in the three sub-chambers, namely a chamber C, a chamber B and a chamber A; or the seeds enter the sub-chamber C from the seed pipe 17 for boiling, flow through the sub-chamber A and the sub-chamber B, are boiled into massecuite, are discharged out of the massecuite device 15 from the sub-chamber B, and the three sub-chambers are washed sequentially to form the chamber B, the chamber A and the chamber C.

Fig. 3 is a schematic structural view of a four-compartment continuous cooking pot according to the present invention, and a partial sectional view of the continuous cooking pot body is shown in fig. 3. In fig. 3, a continuous boiling pot 1 is provided with four independent subchambers A, B, C and D, each subchamber is divided into 3 independent compartments with upper parts communicated by a transverse partition plate, each subchamber is provided with an independent vertical tubular heating body 4, a heating steam pipe 8, a condensed water discharging pipe 5, a non-condensable gas discharging pipe 10, a juice steam chamber, a juice catcher 11, a seed feeding pipe (an A chamber seed pipe 9, a B chamber seed pipe 14, a C chamber seed pipe 17 and a D chamber seed pipe 20), a massecuite discharging device (an A chamber massecuite discharging device 12, a B chamber massecuite discharging device 15, a C chamber massecuite discharging device 18 and a D chamber massecuite discharging device 21), a communication pipeline and a valve connection (a communication valve 13 between the subchambers A and B, a communication valve 16 between the subchambers B and C, a communication valve 19 between the subchambers C and D, a communication valve 22 between subchamber D and subchamber a). Each compartment is provided with an independent feeding and hot water inlet pipe device 3, a hammering degree detector, an automatic cleaning device outside the tank and an in-tank spraying device.

Fig. 4 is a schematic representation of the massecuite flow during the cooking of sugar in all four compartments of the four-compartment continuous cooking vessel of the present invention, with communication valve 13 closed and communication valves 16, 19 and 22 open, with seeds entering compartment B from seed tube 14 for cooking, passing through compartment C, compartment D, compartment a, and cooked massecuite exiting massecuite device 12 from compartment a.

FIG. 5 is a schematic view of a scheme of the respective compartment wheel washing in the operation of the four-compartment continuous boiling tank, in whichFIG. 5- (5)The flow direction of massecuite when the chamber A is washed in turn is schematically shown in the flow direction of the massecuite when the chambers B and D of the four-chamber continuous cooking pot are used for cooking sugar and the chambers C and D are used for cooking sugar, at the moment, the communicating valves 13 and 22 are closed, the communicating valves 16 and 19 are opened, seeds enter the chamber B from the seed pipe 14 for cooking, flow through the chambers C and D, are cooked into massecuite, and are discharged from the chamber D and a massecuite discharging device 21.

FIG. 5- (6)The four-chamber continuous cooking pot has a sub-chamber A and a sub-chamber B, which are used for cooking sugar, and a sub-chamber D is used for washing, the massecuite flows to the schematic diagram, at the moment, the communicating valves 19 and 22 are closed, the communicating valves 13 and 16 are opened, the seeds enter the sub-chamber A from the seed pipe 9 for cooking, flow through the sub-chamber B and the sub-chamber C, are cooked into massecuite, and are discharged from the sub-chamber C and the massecuite discharging device 18.

FIG. 5- (7)The four-chamber continuous cooking pot has a sub-chamber A and a sub-chamber B, which are used for cooking sugar, and a sub-chamber C, which is used for washing, and the massecuite flows to the schematic diagram, at the moment, the communicating valves 16 and 19 are closed, the communicating valves 22 and 13 are opened, the seeds enter the sub-chamber D from the seed pipe 20 for cooking, flow through the sub-chamber A and the sub-chamber B, are cooked into massecuite, and are discharged from the sub-chamber B and the massecuite discharging device 15.

FIG. 5- (8)The four-chamber continuous cooking pot subchamber C and subchamber D are divided into chamber A for cooking sugar, and the subchamber B is divided into chamber B for washing, so that the sugar mass flows to the schematic drawing, at the moment, the communicating valves 13 and 16 are closed, the communicating valves 19 and 22 are opened, the seeds enter the subchamber C from the seed pipe 17 for cooking, flow through the subchamber D and the subchamber A, are cooked into the sugar mass, and are discharged from the subchamber A and the sugar mass discharging device 12.

The direction of flow of massecuite during the cooking of sugar in the four compartments of the four-compartment continuous cooking vessel of fig. 4 can also be arranged as follows: seeds enter the sub-chamber A from the seed pipe 9 for boiling, flow through the sub-chamber B, the sub-chamber C and the sub-chamber D, are boiled into massecuite, are discharged out of the massecuite device 21 from the sub-chamber D, and are sequentially washed into the sub-chamber D, the sub-chamber C, the sub-chamber B and the sub-chamber A; or the seeds enter the sub-chamber D from the seed tube 20 to be boiled and made to be massecuite to flow through the sub-chamber A, the sub-chamber B and the sub-chamber C, the massecuite is boiled and made to be massecuite to be discharged out of the massecuite device 18 from the sub-chamber C, and the four sub-chambers are washed sequentially to form the chamber C, the chamber B, the chamber A and the chamber D; or the seeds enter the sub-chamber C from the seed pipe 17 to be boiled and made to be massecuite to flow through the sub-chamber D, the sub-chamber A and the sub-chamber B, the massecuite is boiled and made to be massecuite to be discharged from the sub-chamber B and the massecuite discharging device 15, and the four sub-chambers are washed sequentially to be the chamber B, the chamber A, the chamber D and the chamber C.

The working principle of the horizontal continuous crystallization tank with multiple independent chambers is as follows:

at present, the integrated horizontal continuous crystallization tank used in sugar factories at home and abroad is only divided into 1-2 chambers. During the season of squeezing, only 1 chamber horizontal continuous crystallizing tank obviously cannot be cleaned on line, and 2 chamber horizontal continuous crystallizing tanks need to be washed in turn, so that the processing capacity of the continuous crystallizing tanks is reduced by half, and the large fluctuation of the balance of materials and steam and water in a whole plant is inevitably caused.