22results about "Purification using alkaline earth metal compounds" patented technology

The invention discloses a method for realizing circulating clarification utilization of sugar industry filter mud based on calcination, which comprises the following steps: filter mud drying: scattering and drying wet filter mud to obtain dry filter mud; suspension flash burning: mixing the dry filter mud with limestone powder, calcining by utilizing secondary hot air in a suspension cooling process, removing organic matters in the dry filter mud and partially decomposing calcium carbonate in the mixed material; performing fluidized bed roasting: introducing high-pressure air into the mixed material subjected to suspension flash burning treatment to enable the material to utilize waste heat of the material in a boiling state to complete deep decomposition of calcium carbonate so as to obtain a high-temperature finished product; suspension cooling: cooling the high-temperature finished product to obtain a low-temperature finished product; digesting: digesting a low-temperature finished product to prepare lime milk; and flue gas reutilization: the CO2-containing flue gas generated by suspension flash burning is sequentially used as a drying heat source for filter mud drying, and is used for a sugar juice clarification and carbonation process after being purified. According to the invention, the pollution problem is solved, resource utilization is realized, the use of limestone is reduced, the flue gas heat of the system is fully utilized, and the energy consumption is reduced.

The utility model relates to the technical field of sugar making, and discloses a carbonation tank scraper device which comprises a tank body, a plurality of carbon dioxide inlet pipes are fixedly arranged on the outer wall face of the tank body in a penetrating mode, and distribution openings distributed at equal intervals are formed in the outer wall face, in a tank body cavity, of each carbon dioxide inlet pipe. A scraping knife for blocking prevention and descaling of the distribution opening is arranged in the cavity of the tank body, a driving unit for driving the scraping knife is arranged on the outer wall surface of the tank body, the driving unit comprises a driving shaft and a speed reducing motor, and side scraping plates are arranged on the two side wall surfaces, close to the distribution opening, of the scraping knife. According to the carbon dioxide distribution device, the prior art is improved, the scraper is placed below the distribution opening, compared with a traditional mode that the distribution opening is installed in the carbon dioxide inlet pipe, the installation space is enlarged, the driving shaft is thickened, the service life is obviously prolonged, and therefore the maintenance cost is saved, and the economic benefits of enterprises are improved.

The utility model provides a sugar juice stoving neutralization device based on pH automatic control. Comprising a sugar juice buffer storage box, a conveying pump, a sugar juice conveying header pipe, a pressure sensor, a temperature sensor, two sugar juice branch pipes, a sugar juice valve, a neutralization reaction tank, a sulfur dioxide branch pipe, a sulfur dioxide header pipe, a lime milk inflow pipe, a linear involute valve, a reversing handle, a lime milk high-level box, a steam dispersing tank, a sampling pipe, a pH glass electrode automatic detector, an intelligent controller and an upper computer. The sugar juice stoving neutralization device is provided with two sets of sulfuric acid neutralization systems, so that one set is used and the other set is cleaned and maintained; a pressure sensor and a temperature sensor are arranged to detect the pressure and the temperature in real time, a pH glass electrode automatic detector is arranged to detect the pH value in real time, an intelligent controller conducts temperature compensation to calculate the actual sugar juice pH value, the opening degree of a linear involute valve is accurately adjusted, and it is ensured that the pH of neutralized sugar juice is within a reasonable range; the influence of external factors on the stoving neutralization of the sugar juice is effectively eliminated.

The invention discloses a clarification method and equipment for carbonation and sedimentation of filtered juice in a raw sugar production process. The clarification method comprises the following steps: step 1, filtering and separating: filtering and separating mud juice of a neutralized juice settler through a filter-cloth-free vacuum suction filter to obtain filtered juice; step 2, neutralization: adding phosphoric acid and lime milk into the filtered juice buffer tank, and stirring for neutralization; step 3, reaction: pumping the neutralized filtered juice in the filtered juice buffer tank into a carbonation tank through a neutralized juice pump to react with carbon dioxide gas to form carbonated juice; step 4, heating: heating in a filtered juice heater, and fully dispersing steam before the heated saturated juice enters a steam dispersing box for flocculating settling; and step 5, flocculating and settling: enabling the carbonated filtered juice to enter a filtered juice settler from the steam dispersing box, adding a flocculating agent into a pipeline, fully mixing the flocculating agent with the carbonated filtered juice, and enabling the mixture to enter the filtered juice settler for gravity settling. The invention also discloses clarification equipment for carbonated and settled filtered juice in the raw sugar production process.

The invention relates to a sugarcane juice clarifying and decoloring method based on alkaline calcium bentonite, which comprises the following steps: mixing sugarcane juice and alkaline calcium bentonite, heating to 40-70 DEG C, keeping the temperature constant, adding a sulfurous acid solution / phosphoric acid solution into the sugarcane juice under the condition of stirring to react with the alkaline calcium bentonite, filtering, washing, and drying to obtain the sugarcane juice. Or continuously introducing sulfur dioxide gas / carbon dioxide gas to react with the alkaline calcium bentonite, and filtering after the reaction is finished to obtain the clarified and decolored cane juice. According to the method, alkaline calcium bentonite is used for replacing lime to serve as a clarifying agent, an existing cane juice clarifying process technology through a sulfurous acid method or a carbonic acid method is improved, the alkaline calcium bentonite and acidic substances such as sulfurous acid, phosphoric acid and carbonic acid are subjected to a neutralization reaction, and corresponding modified bentonite with high adsorption capacity is generated; further, the purpose of clarifying and decoloring the cane juice is achieved.

The present invention relates to a kit for purifying an aqueous composition comprising saccharose, in particular a juice from sugar beets, said kit comprising or consist in: - a first particle composition having quicklime, wherein the weight fraction of said first composition relative to the weight of said kit is greater than 30%, preferably greater than 50%, in particular greater than 70%; and - a second particle composition having a CaCO3 content or a CaCO3 and MgCO3 content of at least 90% in weight, in particular at least 95% in weight relative to said second composition, a d10 greater than 0.8 µm and a d50 greater than 2 µm and a Carr's index lower than 50%, wherein the weight fraction of said second composition relative to the weight of said kit is greater than 15% but less than 70%.

The present invention relates to system and process for sugar 5 manufacturing which comprises of said zeolite chamber (5), zeo membrane 1 (6), zeo membrane 2 (9) and zeo membrane 3 (11) is configured in such a way that there is no need for chemicals for manufacturing the sugar. This results in increased the quality of the sugar cane juice, high yield, energy efficient, eco-friendly, color removal 10 efficiency, and requires less equipment.

The utility model discloses a novel non-clogging stoving neutralizer which comprises a juice inlet chamber, a vacuum chamber and a distribution plate, the top of the juice inlet chamber is provided with an actuator and a first valve rod lifter, the juice inlet chamber is provided with a cane juice inlet, and the vacuum chamber is provided with a sulfur gas inlet; a first adjusting hole is formed in the center of the distribution plate, a plurality of second adjusting holes are formed in the distribution plate around the first adjusting hole, a first nozzle is arranged on the first adjusting hole, and a second nozzle is arranged on the second adjusting hole; a second valve rod is connected to the first nozzle, one end of the second valve rod penetrates through the top of the juice inlet chamber and is connected to the actuator, and the other end of the second valve rod extends into the first nozzle; a first valve rod is connected to the second nozzle, one end of the first valve rod penetrates through the top of the juice inlet chamber and is connected to a first valve rod lifter, and the other end of the first valve rod extends into the second nozzle; the aperture of the first adjusting holes is larger than that of the second adjusting holes, and the apertures of the multiple second adjusting holes are set to be the same aperture or different apertures.

The method comprises the following steps: adding a dolomite digestion product into the sugarcane juice, carrying out primary heating and heat preservation decoloration, then adjusting the pH value by using a phosphoric acid solution, and carrying out secondary heating and heat preservation decoloration; adding a flocculating agent, uniformly stirring, and removing precipitate to obtain primary clear juice; adding a phosphoric acid solution into the primary clear juice, adjusting the pH value by using a dilute sulfuric acid solution, heating to boiling, preserving heat and decoloring, adding a flocculating agent, uniformly stirring, and removing precipitate to obtain clarified and decolored secondary clear juice; according to the method, the dolomite digestion product with the main components of magnesium hydroxide and calcium hydroxide is added into the sugarcane juice, the first-time decolorization operation can be carried out, only the dosage of the dolomite digestion product needs to be controlled in the process, the subsequent phosphoric acid adding and pH adjusting steps are simple regulation and control processes, the production operation difficulty is reduced, and the production cost is reduced. The method is easier to popularize and apply in actual production, and the decoloring stability of the product is ensured.

The invention discloses a system and process for treating sugar industry filter mud through suspension calcination, the system comprises a suspension flash burning furnace, a first-stage separator, a fluidized bed furnace, a scattering dryer, a second-stage separator, a suspension cooling system and a digestion system, and the suspension cooling system comprises a first-stage cooling unit and a last-stage cooling unit; cooling air is introduced into the final-stage cooling unit, and an air outlet of the final-stage cooling unit is connected with a secondary air inlet of the suspension flash burning furnace through the first-stage cooling unit; according to the flow direction of gas, the gas outlet of the suspended flash burning furnace is connected with the sugar juice clarifying system through the primary separator, the scattering dryer, the secondary separator and the dust collector in sequence; a discharging pipe of the second-stage separator is connected with a material feeding opening of the suspension flash burning furnace, a discharging pipe of the first-stage separator is connected with a feeding opening of the fluidized bed furnace, a furnace gas outlet of the fluidized bed furnace is connected with the first-stage cooling unit, and a discharging opening of the first-stage cooling unit is connected with the sugar juice clarifying system through the final-stage cooling unit and the digestion system. The problem of pollution caused by filter mud stacking and landfill is solved, resource utilization is achieved, and energy consumption of the system is reduced.

The present invention relates to a method for producing a carbonation product from a carbonation reactant and to a device for producing a carbonation product from a carbonation reactant, in particular suitable and designed for carrying out the method according to the invention.

The invention relates to a continuous purification device for milk soft sweet processing, and relates to the technical field of sugar mixing equipment.The continuous purification device comprises a boiling system, a filtering system, a purification system and a forming device.The boiling system comprises a plurality of boiling units, and the filtering system comprises a filtering and conveying device and a plurality of filtering and collecting devices; the filtering and collecting devices are installed between the corresponding adjacent boiling units, the filtering and conveying device penetrates through the bottoms of the filtering and collecting devices and slides along the bottoms of the filtering and collecting devices, the forming device is installed on the side edge of the boiling system, and the purifying system is located on the side, away from the forming system, of the boiling system. The filtering effect is good and the water loss is fast.

The invention discloses a sugarcane juice clarifying and decolorizing method based on calcined dolomite powder modified cellulose, which comprises the following steps: adding the calcined dolomite powder modified cellulose into sugarcane juice, carrying out primary heating and heat preservation decolorization, then adjusting the pH value by using a phosphoric acid solution, and carrying out secondary heating and heat preservation decolorization. Adding a flocculating agent, uniformly stirring, and removing precipitate to obtain primary clear juice; adjusting the pH value of the primary clear juice with a phosphoric acid solution, heating the primary clear juice until the primary clear juice is boiled, adding a flocculating agent, uniformly stirring, and removing precipitates to obtain clarified and decolored secondary clear juice; the dolomite calcined powder modified cellulose is prepared by reacting dolomite calcined powder, modified bagasse cellulose and water at 40-60 DEG C, the surface of the modified bagasse cellulose is rough and has creases, and the specific surface area is increased, so that the adsorbable position of the modified bagasse cellulose on pigment substances in cane juice is increased, the adsorption capacity is increased, and the adsorption efficiency is improved. Therefore, the purposes of high decolorization rate and high purity are achieved.

Device for purifying sugar cane juice (14) in sugar production from sugar beets (10) using CaCO3-containing mussel shells (2).

The utility model relates to the technical field of pre-ash technology for sugar refining production, and discloses a pre-ash device for sugar refining production, which comprises a pre-ash pool, four partitions are fixedly installed in the interior of the pre-ash pool, and the interior of the pre-ash pool is evenly divided into five areas by the four partitions. The four partitions evenly divide the pre-ash pool into five areas, and an independent driving motor, a rotating shaft and a stirring fan blade system are arranged in the four areas on the left side, so that the mixing uniformity of lime milk and raw sugar syrup is improved, the pre-ash reaction time is shortened, the part of pigments and impurities in the syrup can be adsorbed after adding lime, the cleaning efficiency is improved, the lime milk feeding pipe is connected with a double first electric regulating valve and a first flowmeter to realize independent flow regulation and control of the first area and the fourth area, the rightmost area is monitored in real time by a PH automatic measuring instrument, the lime milk feeding amount can be dynamically adjusted, the pre-ash end point pH value reaches the standard, the PH value of the raw sugar solution is controlled, the sucrose conversion is effectively reduced, and the cleaning efficiency is improved.

The present invention relates to a kit for purifying an aqueous composition comprising saccharose, in particular a juice from sugar beets, said kit comprising or consist in: - a first particle composition having quicklime, wherein the weight fraction of said first composition relative to the weight of said kit is greater than 30%, preferably greater than 50%, in particular greater than 70%; and - a second particle composition having a CaCOs content or a CaCOs and MgCOs content of at least 90% in weight, in particular at least 95% in weight relative to said second composition, a d10 greater than 0.8 µm and a d50 greater than 2 µm and a Carr's index lower than 50%, wherein the weight fraction of said second composition relative to the weight of said kit is greater than 15% but less than 70%.

The utility model provides a cane juice preliming device capable of adjusting the pH value on line, which comprises a cane juice storage tank, a cane juice tank, a flow meter, a liquid level sensor, a delivery pump, a cane juice delivery pipe, a lime milk pipe, a lime milk high-position storage tank, a linear involute valve, a detection sampling pipe, a pH glass electrode automatic detector, a sampling disc, an intelligent controller and an upper computer. The automatic pH glass electrode detector is additionally arranged on the cane juice preliming device, so that automatic pH detection can be carried out on cane juice in real time; the linear gradual opening valve is additionally arranged, so that the lime milk adding amount can be automatically and accurately adjusted; the whole device is controlled by an intelligent controller, the addition amount of lime milk can be adjusted online in time according to received numerical values, it is ensured that the pH of cane juice preliming is within a reasonable range, and the situation that the pH of preliming is fluctuated due to the fact that a cane juice pump is vacuumized due to fluctuation of the squeezing amount and the too low liquid level in a squeezing juice mixing box is effectively avoided; in addition, the device is simple in structure, easy to manufacture and install, and simple and convenient to use and maintain.

The invention discloses a sugar manufacturing method for improving the production efficiency of baked pastries, which is characterized in that after mixed juice is subjected to physical impurity removal, white granulated sugar is produced by using a sulfurous acid method sugar manufacturing process, and sugar after wheat flour is added is used as a basic raw material for producing the baked pastries, so that the production efficiency can be improved, and large-scale production is facilitated. Comprising the following steps: sugarcane juice extraction, preliming, physical impurity removal, primary concentration, activated carbon filtration, reverse osmosis membrane filtration, stoving neutralization, heating, sedimentation, secondary concentration, crystallization, honey separation, wheat flour addition, and mixing and stirring. The sugar prepared by the method is used as a base material for producing baked pastries, so that the production processes of cakes, biscuits and other baked pastries can be reduced, the production efficiency is improved, and great convenience is provided for large-scale production.

The invention relates to the provision of a method for producing a clear sugar beet pre-liming juice and for producing a coagulate removed from the pre-liming juice, and to pre-limiting juice and a fraction containing protein that are provided by means of said method. A decanter centrifuge having an angle between the longitudinal axis of the bowl and the generatrix of the conical portion of 6-10° is used.

The invention discloses a carbonation process adopting food-grade carbon dioxide as a sugar refining clarifying agent. The carbonation process comprises the following steps: storing the food-grade carbon dioxide; vaporizing the liquid carbon dioxide; regulating the pressure of the gaseous carbon dioxide and metering; preparing and adjusting compressed air; primarily mixing gas; storing and heating the mixed gas; secondarily mixing the gas; and carrying out carbonation reaction and automatic control. Food-grade carbon dioxide is adopted as a clarifying agent and is high in purity and few in impurity, secondary pollution of impurities in traditional flue gas to sugar juice is avoided, the sugar juice clarifying effect is improved, the quality of white granulated sugar is guaranteed, accurate control over gas pressure is achieved through a two-stage pressure regulating system, the stability of gas conveying is guaranteed, and the quality of the white granulated sugar is guaranteed. Two-stage mixing is carried out by adopting the static pipeline mixer and the venturi mixer, so that the uniformity of gas mixing is ensured, automatic adjustment of the carbonation process is realized through linkage control of the online pH meter and the mixed gas introduction amount, the pH value of sugar juice is stabilized in an optimal range, the stability and efficiency of carbonation reaction are improved, and the manual operation intensity is reduced.