Sedative manufacturing facility

Abstract

To make it possible to manufacture a depressant as a forming solidified material by putting papermaking sludge into a constant feed section and supplying the papermaking sludge constantly with the constant feed section, kneading, compressing, and transferring the papermaking sludge from the constant feed section within a barrel of a forming solidification apparatus, and discharging the forming solidified material, and blasting and cooling the forming solidified material with a blast cooling section.SOLUTION: A depressant manufacturing facility comprises a constant feed section F reserving papermaking sludge P and supplying it constantly, a forming solidification apparatus Q kneading, compressing, and transferring papermaking sludge from the constant feed section and discharging a forming solidified material PF, and a blast cooling section L blasting and cooling the forming solidified material from the forming solidification apparatus. A depressant G as the forming solidified material is manufactured by forcibly kneading, compressing, and transferring the papermaking sludge with the forming solidification apparatus, and discharging the forming solidified material of the papermaking sludge. Water content adjustment means 4 is provided for adjusting the water content of the papermaking sludge within a barrel.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a calming agent manufacturing facility for calming the foaming phenomenon of steel slag, for example. [Background technology]

[0002] For example, it has been known to use a molded solidified product of paper sludge (paper waste) generated during the recycling process of waste paper as a calming agent to calm the foaming phenomenon of steel slag. On the other hand, a molding and solidification device is known that has a structure in which industrial waste in a barrel is forcibly kneaded, compressed, and transported in the meshing space of a screw blade, and the molded and solidified product of industrial waste is discharged from the nozzle holes of the die plate.

[0003] Furthermore, when the papermaking sludge is applied to the molding and solidification device, the papermaking sludge has a high moisture content of about 60% to 80%, which may hinder the molding and solidification of the papermaking sludge.For this reason, it is necessary to use various drying means, etc. to adjust the moisture content of the papermaking sludge to be fed into the barrel in advance to about 25% to 35%. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 57-39291 [Patent Document 2] Special Publication No. 5-76896 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when applying the above-mentioned conventional structure, although the papermaking sludge fed into the barrel is dried and the moisture content of the papermaking sludge is previously adjusted to about 25% to 35%, the moisture content of the papermaking sludge may fall below 25% due to frictional heat associated with the kneading, compressing and transporting of the papermaking sludge inside the barrel. When the moisture content of the papermaking sludge falls below 25%, the papermaking sludge may clog the nozzle holes of the die plate, and the clogging of the nozzle holes may make it difficult to discharge the molded solidified papermaking sludge. This is an inconvenience. [Means for solving the problem]

[0006] The present invention aims to solve such inconveniences, and the invention described in claim 1 is a sedative manufacturing facility for sedating the foaming phenomenon of steel slag, the sedative being made of a molded solidified product of papermaking sludge, the sedative being provided with a quantitative supplying section for storing and quantitatively supplying the papermaking sludge, a molding and solidifying device for kneading, compressing and transferring the papermaking sludge from the quantitative supplying section and discharging the molded and solidified product, and a blowing and cooling section for blowing and cooling the molded and solidified product from the molding and solidifying device, the molding and solidifying device being provided with a blowing and cooling section, the molding and solidifying device being provided with a blowing and cooling section, the blowing and cooling section ... a rotary drive mechanism for rotating the two screw shafts in mutually inwardly opposite directions and for forcibly kneading, compressing and transporting the papermaking sludge in the meshing space between the screw blades; a die plate having nozzle holes for discharging a molded solid of the papermaking sludge being kneaded, compressed and transported in the barrel; and a moisture content adjusting means for adjusting the moisture content of the papermaking sludge being kneaded, compressed and transported in the barrel. The moisture content of the papermaking sludge fed into the barrel is adjusted in advance to 25% or more and 35% or less, and the moisture content adjusting means is provided with a water adding means for adding water to the papermaking sludge taking into consideration a decrease in the moisture content of the papermaking sludge due to frictional heat accompanying the kneading, compression and transport within the barrel, thereby adjusting the moisture content of the papermaking sludge to the above 25% or more and 35% or less. The sedative manufacturing facility is characterized by the above.

[0007] The invention described in claim 2 is as follows: A sedative manufacturing facility for sedating the foaming phenomenon of steel slag, the sedative being made of a molded solidified product of papermaking sludge, the sedative being provided with a quantitative supplying section for storing the papermaking sludge and supplying it in a quantitative manner, a molding and solidifying device for kneading, compressing and transferring the papermaking sludge from the quantitative supplying section and discharging the molded and solidified product, and a blowing and cooling section for blowing and cooling the molded and solidified product from the molding and solidifying device, the molding and solidifying device having two screw shafts rotatably arranged in parallel in a barrel into which the papermaking sludge is introduced, a rotary drive mechanism for rotating the two screw shafts in inward directions in mutually interlocking directions and for forcibly kneading, compressing and transporting the papermaking sludge in the meshing spaces of the screw blades; a die plate having nozzle holes for discharging a molded solid of the papermaking sludge being kneaded, compressed and transported in the barrel; and a moisture content adjusting means for adjusting the moisture content of the papermaking sludge being kneaded, compressed and transported in the barrel.The moisture content of the papermaking sludge fed into the barrel is adjusted in advance to 25% or more and 30% or less, and the moisture content adjusting means is provided with a water adding means for adding water to the papermaking sludge in an amount taking into consideration a decrease in the moisture content of the papermaking sludge due to frictional heat accompanying the kneading, compression and transport in the barrel, thereby adjusting the moisture content of the papermaking sludge to the above 25% or more and 30% or less. Located in a sedative manufacturing facility . Effect of the Invention

[0008] As described above, in the invention described in claim 1, paper sludge is manually or automatically fed into the quantitative feeder, and when the paper sludge is stored in the quantitative feeder and fed in a quantitative amount, it is fed into the feed port of the molding and solidifying device, and the paper sludge from the quantitative feeder is kneaded, compressed and transferred in the barrel of the molding and solidifying device, and a molded solidified product is discharged. The molded solidified product from the molding and solidifying device is cooled by air blowing in the air blowing cooling section, making it possible to avoid unforeseen circumstances such as fires caused by high-temperature molded solidified products, and a sedative is produced as a molded solidified product. In this case, the molding and solidifying device has two screw shafts rotatably arranged in parallel in a barrel into which the papermaking sludge is introduced, each screw shaft has screw blades that mesh with each other, and a rotary drive mechanism is provided for rotating the two screw shafts inward in different directions to forcibly knead, compress, and transfer the papermaking sludge in the meshing spaces of the screw blades, and a die plate having nozzle holes for discharging a molded solidified product of the papermaking sludge that is kneaded, compressed, and transferred in the barrel is provided, and the molded and solidified product of the papermaking sludge that is kneaded, compressed, and transferred in the barrel is discharged. Since the moisture content adjusting means is provided to adjust the moisture content of the papermaking sludge, the papermaking sludge is fed from the quantitative feed section to the inlet of the barrel, and the two screw shafts in the barrel are rotated by the rotary drive mechanism. The screw shafts are rotated inward in different directions so that the screw blades mesh with each other, and the papermaking sludge is forcibly kneaded, compressed and transported in the meshing spaces of the screw blades. The fibers of the papermaking sludge are entangled by the kneading and compression, and the papermaking sludge that is kneaded, compressed and transported in the barrel is forced to flow through the nozzle holes of the die plate. The papermaking sludge is discharged from the barrel, and the papermaking sludge is molded and solidified, thereby producing a sedative as a molded and solidified product of the papermaking sludge. At this time, since a moisture content adjusting means is provided for adjusting the moisture content of the papermaking sludge that is kneaded, compressed and transported within the barrel, water can be added to the papermaking sludge in an amount that takes into account the decrease in the moisture content of the papermaking sludge due to frictional heat associated with the kneading, compression and transport within the barrel, the papermaking sludge can be molded and solidified well, and the production efficiency of the sedative as a molded and solidified product of the papermaking sludge can be improved. The moisture content of the papermaking sludge fed into the barrel is adjusted in advance to 25% or more and 35% or less, and the moisture content adjusting means is provided with a moisture adding means for adding water to the papermaking sludge taking into account the drop in the moisture content of the papermaking sludge due to frictional heat accompanying the kneading, compression and transport within the barrel, and adjusting the moisture content of the papermaking sludge to the above 25% or more and 35% or less. Therefore, by making the moisture content of the papermaking sludge accompanying the kneading, compression and transport within the barrel 25% or more and 35% or less, clogging of the nozzle hole can be prevented, the molding and solidification of the molded solidified product can be reliably performed, and the calming agent as a molded solidified product of the papermaking sludge can be stably produced. do.

[0009] In addition, in the invention described in claim 2, Paper sludge is fed into the quantitative supply section either manually or automatically. When the paper sludge is stored in the quantitative supply section and fed in a quantitative manner, it is fed into the feed port of the molding and solidifying device. The paper sludge from the quantitative supply section is kneaded, compressed and transferred in the barrel of the molding and solidifying device, and a molded solidified product is discharged. The molded and solidified product from the molding and solidifying device is cooled by air blowing in the air blowing cooling section, and unforeseen circumstances such as fires caused by high-temperature molded and solidified products can be avoided. A sedative is produced as a molded and solidified product. At this time, the molding and solidifying device is operated to blow the paper sludge into the barrel of the molding and solidifying device. Two screw shafts are rotatably arranged in parallel within a barrel into which sludge is fed, each screw shaft is provided with screw blades which mesh with each other, a rotary drive mechanism is provided for rotating the two screw shafts inward in different directions, and forcibly kneading, compressing and transporting the papermaking sludge in the meshing spaces between the screw blades, a die plate having nozzle holes for discharging a molded solid of the papermaking sludge which is kneaded, compressed and transported within the barrel, and a moisture content adjusting means is provided for adjusting the moisture content of the papermaking sludge which is kneaded, compressed and transported within the barrel. Thus, papermaking sludge is fed from a fixed quantity supply unit to an inlet of the barrel, the two screw shafts in the barrel are rotated by the rotary drive mechanism, the screw shafts are rotated inward in different directions so that the screw blades mesh with each other, the papermaking sludge is forcibly kneaded, compressed and transported in the meshing spaces between the screw blades, the fibers of the papermaking sludge become entangled by the kneading and compression, and the papermaking sludge which is kneaded, compressed and transported within the barrel is discharged from the nozzle holes of the die plate, The sludge is molded and solidified, and a sedative can be produced as a molded and solidified product of papermaking sludge. At this time, since a moisture content adjusting means is provided for adjusting the moisture content of the papermaking sludge being kneaded, compressed and transported within the barrel, water can be added to the papermaking sludge to take into account the decrease in moisture content of the papermaking sludge caused by frictional heat accompanying the kneading, compression and transport within the barrel, and the papermaking sludge can be molded and solidified well, improving the production efficiency of the sedative as a molded and solidified product of papermaking sludge, andThe moisture content of the papermaking sludge fed into the barrel is adjusted in advance to between 25% and 30%, and the moisture content adjusting means is equipped with a moisture adding means which adds water to the papermaking sludge taking into account the decrease in the moisture content of the papermaking sludge due to frictional heat associated with the kneading, compression and transport within the barrel, thereby adjusting the moisture content of the papermaking sludge to between 25% and 30%.By setting the moisture content of the papermaking sludge associated with the kneading, compression and transport within the barrel to between 25% and 30%, clogging of the nozzle holes can be prevented, the molding and solidification of the molded solidified product can be carried out more reliably, and a tranquilizer can be stably produced as a molded solidified product from papermaking sludge. [Brief description of the drawings]

[0010] [Figure 1] 1 is an overall explanatory diagram of an embodiment of the present invention; [Diagram 2] FIG. 2 is a partially enlarged front sectional view of an embodiment of the present invention. [Diagram 3] FIG. 2 is a partially enlarged plan view of an embodiment of the present invention. [Figure 4] FIG. 2 is a partially enlarged front view of the embodiment of the present invention. [Diagram 5] FIG. 2 is a partially enlarged plan view of an embodiment of the present invention. [Figure 6] FIG. 2 is a partially enlarged front sectional view of an embodiment of the present invention. [Figure 7] FIG. 2 is a partially enlarged plan sectional view of an embodiment of the present invention. [Figure 8] FIG. 2 is a partially enlarged side view of an embodiment of the present invention. [Figure 9] FIG. 2 is a partially enlarged cross-sectional side view of an embodiment of the present invention. [Figure 10] FIG. 1 is a diagram illustrating a configuration system of an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] 1 to 10 show an embodiment of a sedative manufacturing facility for sedating the foaming phenomenon of steel slag according to the present invention. As shown in Figs. 1, 4, 5, 6, 8, and 9, the sedative G is roughly classified into a molded solidified material P of papermaking sludge P, F The paper sludge P is stored in a quantitative supply section F, and the paper sludge P is kneaded, compressed, and transported from the quantitative supply section F to be molded and solidified. F A molding and solidification device Q discharges the molded solidified material P from the molding and solidification device Q. F The forming and solidifying device Q is provided with two screw shafts 2·2 rotatably arranged in parallel in a barrel 1 into which the papermaking sludge P is fed, with mutually meshing screw blades 2a·2a provided on each screw shaft 2·2, and a rotation drive mechanism K for rotating the two screw shafts 2·2 inwardly in opposite directions to each other, and forcibly kneading, compressing and transporting the papermaking sludge P in the meshing space R of each screw blade 2a·2a, and a forming and solidifying device P of the papermaking sludge P kneaded, compressed and transported in the barrel 1 is provided with a forming and solidifying device P. F and a moisture content adjusting means 4 for adjusting the moisture content of the papermaking sludge P which is kneaded, compressed and transported within the barrel 1.

[0012] In this case, as shown in FIG. 1, a construction machine N consisting of a wheel loader is used as a loading machine for feeding the paper sludge P into the quantitative supply section F, and in the quantitative supply section F, as shown in FIG. 2, a storage hopper F for storing the paper sludge P from the construction machine N is used. 1 and storage hopper F 1 A feeding mechanism F that feeds a fixed amount of papermaking sludge P in 2 In this case, the feeding mechanism F 2 As shown in Figures 2 and 3, the storage hopper F 1 A feeding machine F equipped with 3 Two screws F 4 F 4 are arranged in parallel so as to rotate freely, and two screws F 4 F 4 Motor F 5The two screws F rotate in response to a signal indicating a decrease in the amount of papermaking sludge P in the barrel 1. 4 F 4 The screw F rotates. 4 F 4 Storage hopper F 1 The paper sludge P stored in the tank is fed in a fixed amount and dropped into the tank F. 6 The device is configured to be dropped from a

[0013] In this case, as shown in FIG. 1, a conveyor Q is provided to supply the paper sludge P from the quantitative supply section F to the molding and solidifying device Q. 1 In addition, the transport conveyor Q 1 In some cases, the paper sludge P from the constant quantity supply section F is directly fed into the feed port T of the molding and solidifying device Q without using the feeder.

[0014] In this case, as shown in Figs. 4 and 7, the barrel 1 is made of, for example, a casting of alloy steel, and is attached and fixed on a machine base B. An inlet T for feeding powdered paper sludge P is formed on the upper side of the barrel 1. Two screw shafts 2·2 are rotatably arranged in parallel inside the barrel 1. The screw shafts 2·2 are provided with mutually meshing screw blades 2a·2a. Further, a rotation drive mechanism K is provided on the machine base B for rotating the two screw shafts 2·2 inward in opposite directions to each other, and forcibly kneading, compressing and transporting the paper sludge P in the meshing space R of each screw blade 2a·2a. The molded solidified product P of the paper sludge P kneaded, compressed and transported in the barrel 1 is then compressed and fed to the barrel 1. F The die plate 3 has nozzle holes 3a through which the paper sludge P is discharged, thereby forming a molding and solidifying device Q. F The company will manufacture the sedative G as a sedative.

[0015] In this case, the rotation drive mechanism K is, as shown in Figs. 5 and 9, provided on the machine base B with an electric motor M and a pair of gears H. 1 H 1 A gear mechanism H consisting of the above-mentioned gears is provided, and the two screw shafts 2, 2 are driven by an electric motor M via the gear mechanism H to rotate inward in opposite directions.

[0016] In this case, the moisture content adjusting means 4 is roughly composed of a water sprinkler nozzle 4a and a water adding means C, as shown in FIG. 6. The water adding means C is equipped with a flow control valve, a flow sensor, a moisture meter, a water amount calculation unit, and a flow control unit, and is connected to a water supply source S such as a water supply. The moisture content of the powdered papermaking sludge P fed into the barrel 1 has been adjusted in advance to 25% to 35% by a drying means or the like. In this case, the moisture content indicates the moisture content by weight, and the water adding means C of the moisture content adjusting means 4 adds water W from the water sprinkler nozzle 4a to the papermaking sludge P taking into account the decrease in the moisture content of the papermaking sludge P due to frictional heat associated with the kneading, compression and transport within the barrel 1, thereby adjusting the moisture content of the papermaking sludge P to the above-mentioned 25% to 35%.

[0017] The moisture content of the papermaking sludge P being kneaded, compressed and transported within the barrel 1 is measured by the moisture meter, and the amount of water W taking into account the decrease in moisture content of the papermaking sludge P due to frictional heat accompanying the kneading, compression and transport within the barrel 1 is calculated by the water volume calculation unit, and the flow control valve is controlled by the flow control unit using a flow sensor to add water to the papermaking sludge P to adjust the moisture content of the papermaking sludge P to the above-mentioned 25% or more and 35% or less.

[0018] In this case, for example, an infrared moisture meter is used as the moisture meter constituting the moisture content adjustment means 4. The infrared moisture meter heats and dries the papermaking sludge P as a sample by irradiating it with infrared rays, measures the mass of the sample before drying, and measures the mass of the sample after drying due to evaporation of the moisture, and measures the moisture content by regarding the weight loss as moisture.

[0019] In this case, the reason why the moisture content of the paper sludge P accompanying the kneading, compression and transport in the barrel 1 is set to 25% or more and 35% or less is that if the moisture content falls below 25%, the paper sludge P kneaded, compressed and transported in the barrel 1 will become a molded solidified material P F The nozzle holes 3a of the die plate 3 through which the paper sludge P is discharged become clogged, and the paper sludge P is solidified into a molded solid P due to the clogging of the nozzle holes 3a. FOn the other hand, if the moisture content exceeds 35%, the molded solidified material P F This is because the sludge P becomes loose and does not solidify, making it difficult to mold and solidify the papermaking sludge P.

[0020] In addition, with regard to the moisture content of the papermaking sludge P, it is more preferable to set the upper limit of the moisture content to 30% or less, that is, the moisture content to be 25% or more and 30% or less. By setting the upper limit of the moisture content to 30% or less, clogging of the nozzle holes 3a·3a·· of the die plate 3 can be prevented, and the papermaking sludge P can be well molded and solidified, and the molded solidified product P of the papermaking sludge P can be well formed and solidified. F This makes it possible to stably produce sedative G as a sedative.

[0021] 4 and 5, a heater mechanism D is provided near the die plate 3 on the outer periphery of the barrel 1, and is configured to heat the barrel 1 in the initial stage of operation for kneading, compressing and transporting the papermaking sludge P. The reason for heating the barrel 1 is that, for example, in the initial stage of operation, the temperature of the barrel 1 is low, making it difficult to solidify the papermaking sludge P, and if the temperature is too high, the papermaking sludge P in the barrel 1 dries out, causing clogging of the nozzle holes 3a·3a·· of the die plate 3.

[0022] In this case, as shown in Figures 4 and 6, the heater mechanism D is provided with a temperature control means E for adjusting the temperature of the barrel 1 to 100°C or more and 140°C or less, and the temperature control means E is equipped with a temperature sensor and a temperature control unit, and is configured to heat the barrel 1 to a temperature of 100°C or more and 140°C or less during the initial stage of the operation of kneading, compressing and transporting the paper sludge P, and to take into account the temperature rise of the barrel 1 due to frictional heat associated with the kneading, compressing and transporting within the barrel 1 after the operation has started, and in the event of an excessive temperature rise, the heating operation of the heater mechanism D is stopped, and in the event of a temperature drop in the barrel 1, the heating operation of the heater mechanism D is resumed, thereby controlling the temperature of the barrel 1 to 100°C or more and 140°C or less. The reason for keeping the temperature of barrel 1 at 100°C or higher and 140°C or lower is that if the temperature of barrel 1 is below 100°C, it becomes difficult to solidify the papermaking sludge P, and if the heating temperature exceeds 140°C, the papermaking sludge P in barrel 1 will dry out, which may cause the nozzle holes 3a·3a·· of the die plate 3 to become clogged with the papermaking sludge P.

[0023] In this case, the sedative G from the molding and solidifying device Q is received in the receiving container Q 2 Discharge conveyor Q 3 This discharge conveyor Q 3 As shown in FIG. 1, the molded solidified material P of paper sludge P discharged from the molding and solidification device Q is F In this case, the cooling mechanism L is provided with a cooling unit L. 1 In this case, as shown in FIG. 1, the cooling mechanism L 1 As, ventilation cover L 2 , Ventilation duct L 3 and a blower (not shown), and the air from the blower is blown through a blower duct L 3 A plurality of molded solids P of papermaking sludge P are formed through the F The hot molded solidified material P F It is designed to avoid unforeseen incidents such as fires.

[0024] Since this embodiment has the above-mentioned configuration, as shown in Figs. 1 and 10, the paper sludge P is input into the fixed quantity supply section F by the construction machine N either manually or automatically, and the paper sludge P is stored in the fixed quantity supply section F and supplied at a fixed quantity. 1 The paper sludge P from the quantitative supply section F is kneaded, compressed and transported in the barrel 1 of the molding solidification device Q to form a molded solidified material P F is discharged, and the molded solidified material P F Discharge Conveyor Q 3 Through receiving vessel Q 2 At this time, the molded solidified material P from the molding and solidification device Q is stored in the F is cooled by the cooling section L, and the high-temperature molded solidified material P F This can prevent unexpected accidents such as fires caused by the molded solidified material P F In this case, the forming and solidifying device Q has two screw shafts 2·2 rotatably arranged in parallel in a barrel 1 into which the paper sludge P is fed, each screw shaft 2·2 has mutually meshing screw blades 2a·2a, and is provided with a rotation drive mechanism K for rotating the two screw shafts 2·2 inwardly in opposite directions to each other, and forcibly kneading, compressing and transporting the paper sludge P in the meshing space R of each screw blade 2a·2a, and produces a formed solidified product P of the paper sludge P that is kneaded, compressed and transported in the barrel 1. F The barrel 1 is provided with a die plate 3 having nozzle holes 3a through which the sludge P is discharged, and a moisture content adjusting means 4 is provided for adjusting the moisture content of the papermaking sludge P being kneaded, compressed and transported in the barrel 1. 1The papermaking sludge P is fed into the inlet T of the barrel 1 through the nozzle hole 3a, and the two screw shafts 2·2 in the barrel 1 are rotated by the rotary drive mechanism K. The screw shafts 2·2 are rotated inward in opposite directions so that the screw blades 2a·2a mesh with each other. The papermaking sludge P is forcibly kneaded, compressed and transported in the meshing spaces R of the screw blades 2a·2a. The fibers of the papermaking sludge P become entangled by the kneading and compression. The papermaking sludge P that has been kneaded, compressed and transported in the barrel 1 is discharged from the nozzle holes 3a·3a·· of the die plate 3, and the papermaking sludge P is molded and solidified. The molded solidified product P of the papermaking sludge P is F In this case, since a moisture content adjusting means 4 is provided for adjusting the moisture content of the papermaking sludge P being kneaded, compressed and transported in the barrel 1, water W can be added to the papermaking sludge P in an amount that takes into account the decrease in the moisture content of the papermaking sludge P due to frictional heat accompanying the kneading, compression and transport in the barrel 1, and the papermaking sludge P can be well molded and solidified, and the molded solidified product P of the papermaking sludge P can be obtained. F This can improve the production efficiency of the sedative G as a sedative.

[0025] In this case, the moisture content of the papermaking sludge P to be fed into the barrel 1 is adjusted in advance to 25% or more and 35% or less, and the moisture content adjusting means 4 is provided with a moisture adding means C for adding water W to the papermaking sludge P in an amount that takes into account the decrease in the moisture content of the papermaking sludge P due to frictional heat accompanying the kneading, compression and transport within the barrel 1, and adjusting the moisture content of the papermaking sludge P to the above 25% or more and 35% or less. Therefore, by setting the moisture content of the papermaking sludge P accompanying the kneading, compression and transport within the barrel 1 to 25% or more and 35% or less, clogging of the nozzle holes 3a·3a·· can be prevented, and the molded solidified material P F The shaping and solidification of the paper sludge P can be performed reliably, and the shaping and solidification of the paper sludge P can be performed reliably. F This makes it possible to stably produce sedative G as a sedative.

[0026] At this time, the moisture content of the papermaking sludge P to be fed into the barrel 1 is adjusted in advance to 25% or more and 30% or less, and the moisture content adjusting means 4 is provided with a moisture adding means C for adding water W to the papermaking sludge P in an amount that takes into account the decrease in the moisture content of the papermaking sludge P due to frictional heat accompanying the kneading, compression and transport within the barrel 1, and adjusting the moisture content of the papermaking sludge P to the above 25% or more and 30% or less. By making the moisture content of the papermaking sludge P accompanying the kneading, compression and transport within the barrel 1 to 25% or more and 30% or less, the clogging phenomenon of the nozzle holes 3a·3a·· can be prevented, and the formed solidified material P F The molding and solidification of the paper sludge P can be performed more reliably, and the molded solidified product P F This makes it possible to stably produce sedative G as a sedative.

[0027] In this case, as shown in FIG. 4 and FIG. 5, a heater mechanism D is provided for heating the barrel 1 in the initial stage of the operation of kneading, compressing and transporting the papermaking sludge P. Therefore, the papermaking sludge P can be reliably solidified, and the clogging phenomenon of the papermaking sludge P in the nozzle holes 3a·3a·· of the die plate 3 can be prevented, and the molded solidified material P can be easily formed. F The shaping and solidification of the paper sludge P can be performed reliably, and the shaping and solidification of the paper sludge P can be performed reliably. F 4 and 6, the heater mechanism D is provided with a temperature control means E for adjusting the temperature of the barrel 1 to 100°C or more and 140°C or less. Therefore, in the initial stage of the operation of kneading, compressing and transporting the papermaking sludge P, the barrel 1 is heated to a temperature of 100°C or more and 140°C or less. After the start of the operation, the temperature rise of the barrel 1 due to frictional heat accompanying the kneading, compressing and transporting in the barrel 1 is taken into consideration. In the event of an excessive temperature rise, the heating operation of the heater mechanism D is stopped. In the event of a temperature drop in the barrel 1, the heating operation of the heater mechanism D is resumed. This makes it possible to heat and control the temperature of the barrel 1 to 100°C or more and 140°C or less. This prevents the papermaking sludge P from clogging the nozzle holes 3a·3a·· of the die plate 3, and produces the molded solidified material P. F The molding and solidification of the paper sludge P can be performed more reliably, and the molded solidified product P F This makes it possible to stably produce sedative G as a sedative.

[0028] In addition, the present invention is not limited to the above embodiment. For example, the sedative G, the tooth gap R, the papermaking sludge P, the molded solidified material P F The rotary drive mechanism K, water adding means C, molding and solidifying device Q, constant quantity supply section F, air cooling section L, barrel 1, screw shafts 2·2, screw blades 2a·2a, die plate 3, nozzle hole 3a, moisture content adjusting means 4, etc. may be designed by appropriate modifications.

[0029] As described above, the intended purpose can be fully achieved. [Explanation of symbols]

[0030] G. Sedatives R dentition space P Paper sludge P F Molded solid K Rotational drive mechanism W water C Water addition means Q Molding solidification equipment F Fixed amount supply section L Blow cooling section 1 barrel 2 Screw shaft 2a Screw blade 3 Dice Plate 3a Nozzle hole 4 Moisture content adjustment means

Claims

1. A calming agent manufacturing facility for calming the foaming phenomenon of steel slag, the calming agent being made of a molded solidified product of papermaking sludge, comprising a quantitative supplying section for storing and quantitatively supplying the papermaking sludge, a molding and solidifying device for kneading, compressing and transferring the papermaking sludge from the quantitative supplying section and discharging the molded and solidified product, and an air blowing cooling section for blowing and cooling the molded and solidified product from the molding and solidifying device, the molding and solidifying device being provided with two rotatably arranged screw shafts in a barrel into which the papermaking sludge is introduced, the screw shafts being provided with screw blades which mesh with each other, the two screw shafts being driven to rotate inward in different directions from each other, and the papermaking sludge being forcibly compressed in the meshing spaces between the screw blades. a rotary drive mechanism for mechanically kneading, compressing and transporting the papermaking sludge, a die plate having nozzle holes for discharging a molded solidified product of the papermaking sludge being kneaded, compressed and transported within the barrel, and a moisture content adjusting means for adjusting the moisture content of the papermaking sludge being kneaded, compressed and transported within the barrel, wherein the moisture content of the papermaking sludge fed into the barrel is adjusted in advance to between 25% and 35%, and the moisture content adjusting means is provided with a water adding means for adding water to the papermaking sludge in an amount taking into account the decrease in the moisture content of the papermaking sludge due to frictional heat associated with the kneading, compression and transport within the barrel, thereby adjusting the moisture content of the papermaking sludge to the above 25% to 35%.

2. A calming agent manufacturing facility for calming the foaming phenomenon of steel slag, the calming agent being made of a molded solidified product of papermaking sludge, the calming agent comprising: a quantitative supplying section for storing the papermaking sludge and supplying it in a quantitative amount; a molding and solidifying device for kneading, compressing and transferring the papermaking sludge from the quantitative supplying section and discharging the molded and solidified product; and an air blowing and cooling section for blowing and cooling the molded and solidified product from the molding and solidifying device, the molding and solidifying device being provided with two rotatably arranged screw shafts in a barrel into which the papermaking sludge is fed, the screw shafts being provided with screw blades which mesh with each other, the two screw shafts being driven to rotate inward in opposite directions, and the papermaking sludge being forcibly cooled in the meshing spaces between the screw blades. a rotary drive mechanism for mechanically kneading, compressing and transporting the papermaking sludge, a die plate having nozzle holes for discharging a molded solidified product of the papermaking sludge being kneaded, compressed and transported within the barrel, and a moisture content adjusting means for adjusting the moisture content of the papermaking sludge being kneaded, compressed and transported within the barrel, wherein the moisture content of the papermaking sludge fed into the barrel is adjusted in advance to between 25% and 30%, and the moisture content adjusting means is provided with a water adding means for adding water to the papermaking sludge in an amount taking into account the decrease in the moisture content of the papermaking sludge due to frictional heat associated with the kneading, compression and transport within the barrel, thereby adjusting the moisture content of the papermaking sludge to the above 25% to 30%.

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